Verified Doctors, Hospitals & NPI Directory in Diamond Bar, California (CA)

Verified directory of doctors, hospitals, clinics, and 10-digit NPI numbers in Diamond Bar, California (CA), screened against HHS OIG exclusions.

🏥 All California Hospitals 🩺 California Family Medicine 👶 California Pediatrics ⚕️ California Internal Medicine
Medical Billing, RCM & Hospital Credentialing Teams:
Batch-verify up to 25 NPIs free against CMS NPPES + Medicare PECOS + HHS OIG Exclusions with 1-click CSV export.
Launch Bulk NPI Checker → JSON API Docs

Active CMS NPPES Providers & Facilities in Diamond Bar, CA (72 Featured)

NPI 1487320313
✓ OIG Clear

168 IN & OUT HOME THERAPY, INC

Licensed & Credentialed Respiratory, Developmental, Rehabilitative & Restorative Service Providers — Physical Therapist (225100000X)
📍 1710 KIOWA CREST DR, DIAMOND BAR, CA, 91765-2911
📞 (626) 764-2828
NPI 1609146752
✓ OIG Clear

21ST CENTURY HERBS & HEALTH

Licensed & Credentialed Acupuncturist (171100000X)
📍 20657 GOLDEN SPRING DRIVE, DIAMOND BAR, CA, 91789
📞 (909) 869-1999
NPI 1114639275
✓ OIG Clear

A BELOVED HOME OF DIAMOND BAR LLC

Licensed & Credentialed Assisted Living Facility (310400000X)
📍 454 S ROCK RIVER RD, DIAMOND BAR, CA, 91765-1561
📞 (626) 899-6999
NPI 1659298479
✓ OIG Clear

A&J REHAB INC

Licensed Outpatient Medical Clinic / Urgent Care & Ambulatory Center (261QP2000X)
📍 3110 MARIGOLD CIR, DIAMOND BAR, CA, 91765-3778
📞 (213) 925-2697
NPI 1790945632
✓ OIG Clear

A-ONE MEDICAL GROUP, INC. A PROFESSIONAL CORPORATION

Board-Certified Family Medicine Physician (All-Ages Primary Care Doctor) (207Q00000X)
📍 2705 S DIAMOND BAR BLVD, DIAMOND BAR, CA, 91765-3512
📞 (626) 965-1988
NPI 1306006655
✓ OIG Clear

A-ONE MEDICAL GROUP, INC. A PROFESSIONAL CORPORATION

Board-Certified Family Medicine Physician (All-Ages Primary Care Doctor) (207Q00000X)
📍 2705 S DIAMOND BAR BLVD, DIAMOND BAR, CA, 91765-3512
📞 (626) 965-1988
NPI 1578355970
✓ OIG Clear

ABANS INC

Licensed & Credentialed In Home Supportive Care (253Z00000X)
📍 1370 VALLEY VISTA DR STE 200, DIAMOND BAR, CA, 91765-3921
📞 (203) 850-7970
NPI 1831148501
✓ OIG Clear

SAM ABAZA, M.D.

Board-Certified Dermatologist (Skin, Hair & Nail Medical/Surgical Specialist) (207N00000X)
📍 1111 GRAND AVE STE K, DIAMOND BAR, CA, 91765-4172
📞 (098) 604-2549
NPI 1376055673
✓ OIG Clear

ABBA HOSPICE INC

Licensed & Credentialed Agencies — Hospice Care, Community Based (251G00000X)
📍 20955 PATHFINDER RD STE 332, DIAMOND BAR, CA, 91765-4055
📞 (909) 468-2033
NPI 1750196572
✓ OIG Clear

NOOR MARY ABDO, DO

Licensed & Credentialed Student in an Organized Health Care Education/Training Program (390200000X)
📍 306 LIBERTY VIEW LN, LYNCHBURG, VA, 24502-2291
📞 (434) 592-6400
NPI 1356721575
✓ OIG Clear

RAGHAD ABDO

Licensed & Credentialed Pharmacist (183500000X)
📍 1235 S DIAMOND BAR BLVD, DIAMOND BAR, CA, 91765
📞 (909) 861-9433
NPI 1194122234
✓ OIG Clear

KRISTOFER ABEJUELA

Licensed & Credentialed Physician Assistants & Advanced Practice Nursing Providers — Physician Assistant (363A00000X)
📍 2158 DERRINGER LN, DIAMOND BAR, CA, 91765-3333
📞 (909) 861-3358
NPI 1225255185
✓ OIG Clear

REYNALDO RAYMUNDO ABEJUELA, M.D.

Board-Certified Psychiatrist (Mental Health & Behavioral Medicine Physician) (2084P0800X)
📍 4990 ARLINGTON AVE, RIVERSIDE, CA, 92504-2757
📞 (951) 343-3150
NPI 1023978988
✓ OIG Clear

ABERDEEN CARE LLC DBA DIAMOND BAR RCFE

Licensed & Credentialed Assisted Living Facility (310400000X)
📍 1652 MAPLE HILL RD, DIAMOND BAR, CA, 91765-2931
📞 (626) 523-5970
NPI 1477946283
✓ OIG Clear

RITZ-ALBERT ABLAZA, PTA

Licensed & Credentialed Physical Therapy Assistant (225200000X)
📍 22900 RIO LOBOS RD, DIAMOND BAR, CA, 91765-4401
📞 (909) 895-7684
NPI 1811460322
✓ OIG Clear

ABOVE ALL AUTISM CENTER

Licensed & Credentialed Behavior Analyst (103K00000X)
📍 1601 ANO NUEVO DR, DIAMOND BAR, CA, 91765-2944
📞 (626) 818-6853
NPI 1790238962
✓ OIG Clear

AADIL ABOWATH

Board-Certified Pediatrician (Infant, Child & Adolescent Medicine) (174400000X)
📍 1304 S DIAMOND BAR BLVD UNIT C, DIAMOND BAR, CA, 91765
📞 (951) 515-2905
NPI 1326287525
✓ OIG Clear

SAKINA ABOWATH, P.A.

Licensed & Credentialed Physician Assistants & Advanced Practice Nursing Providers — Physician Assistant, Medical (363AM0700X)
📍 23525 GOLDEN SPRINGS DR STE A, DIAMOND BAR, CA, 91765-2175
📞 (909) 860-7600
NPI 1104104538
✓ OIG Clear

LIDA SUAN ABRAHAM, Speech Pathologist

Licensed & Credentialed Speech, Language and Hearing Service Providers (235Z00000X)
📍 706 N DIAMOND BAR BLVD STE B, DIAMOND BAR, CA, 91765-1059
📞 (909) 396-8900
NPI 1437801081
✓ OIG Clear

ACACIA GUEST HOME LLC

Licensed & Credentialed Assisted Living Facility (310400000X)
📍 1847 ACACIA HILL RD, DIAMOND BAR, CA, 91765-2942
📞 (626) 541-5921
NPI 1568895852
✓ OIG Clear

ACRO COUNSELING CENTER

Licensed & Credentialed Behavioral Health & Social Service Providers — Psychologist, Clinical (103TC0700X)
📍 3333 S BREA CANYON RD, DIAMOND BAR, CA, 91765-3786
📞 (909) 274-7757
NPI 1528479680
✓ OIG Clear

ACUPOINT ACUPUNCTURE, INC.

Licensed & Credentialed Acupuncturist (171100000X)
📍 20627 GOLDEN SPRINGS DR, DIAMOND BAR, CA, 91789-4814
📞 (909) 598-1588
NPI 1417841446
✓ OIG Clear

ACUPUNCTURE CARE ALLIANCE

Licensed & Credentialed Acupuncturist (171100000X)
📍 24202 SYLVAN GLEN RD UNIT D, DIAMOND BAR, CA, 91765-4500
📞 (949) 878-5656
NPI 1831508571
✓ OIG Clear

ACUPUNCTURE MASTER CLINIC LLC

Licensed Outpatient Medical Clinic / Urgent Care & Ambulatory Center (261QP3300X)
📍 2705 S DIAMOND BAR BLVD STE 208, DIAMOND BAR, CA, 91765-3554
📞 (909) 833-1138
NPI 1376471672
✓ OIG Clear

SOUNDARYA ADEPU

Licensed & Credentialed Speech, Language and Hearing Service Providers (235Z00000X)
📍 333 S BEAUDRY AVE, LOS ANGELES, CA, 90017-1466
📞 (213) 241-6200
NPI 1689368219
✓ OIG Clear

ADRIAN ACOSTA DDS A PROFESSIONAL DENTAL CORP

Licensed Doctor of Dental Surgery (DDS) / Doctor of Medicine in Dentistry (DMD) (1223G0001X)
📍 620 N. DIAMOND BAR BLVD, DIAMOND BAR, CA, 91765-1037
📞 (909) 860-5100
NPI 1275587685
✓ OIG Clear

ADVANCED HOME MEDICAL INC

Licensed & Credentialed Suppliers — Durable Medical Equipment & Medical Supplies (332B00000X)
📍 312 PASEO TESORO, WALNUT, CA, 91789-2725
📞 (909) 444-2991
NPI 1720139207
✓ OIG Clear

ADVANTAGE HEALTH AND FITNESS

Licensed & Credentialed Respiratory, Developmental, Rehabilitative & Restorative Service Providers — Physical Therapist (225100000X)
📍 1200 S DIAMOND BAR BLVD, DIAMOND BAR, CA, 91765-2298
📞 (909) 396-0309
NPI 1518119130
✓ OIG Clear

ADVANTAGE REHAB & ORTHOPEDIC PHYSICAL THERAPY, INC.

Licensed & Credentialed Respiratory, Developmental, Rehabilitative & Restorative Service Providers — Physical Therapist (225100000X)
📍 1200 S. DIAMOND BAR BLVD., DIAMOND BAR, CA, 91765-4122
📞 (909) 396-0309
NPI 1629204904
✓ OIG Clear

ADVANTES SPEECH CLINIC INC

Licensed Outpatient Medical Clinic / Urgent Care & Ambulatory Center (261QH0700X)
📍 133 E BONITA AVE, SAN DIMAS, CA, 91773-3173
📞 (626) 329-1661
NPI 1558473272
✓ OIG Clear

ADVENT HEALTHCARE SERVICES, INC.

CMS-Certified Home Health Care & Skilled Nursing Agency (251E00000X)
📍 3333 S BREA CANYON RD STE 123, DIAMOND BAR, CA, 91765-3783
📞 (909) 839-2511
NPI 1558725911
✓ OIG Clear

ADVENT HOSPICE & PALLIATIVE CARE, INC.

Licensed & Credentialed Agencies — Hospice Care, Community Based (251G00000X)
📍 3333 S BREA CANYON RD, DIAMOND BAR, CA, 91765-3786
📞 (909) 839-2511
NPI 1194493007
✓ OIG Clear

AFMC DIAMOND LAB

CLIA-Certified Diagnostic Medical & Pathology Laboratory (291U00000X)
📍 1370 VALLEY VISTA DR STE 135, DIAMOND BAR, CA, 91765-3950
📞 (909) 777-8888
NPI 1144437757
✓ OIG Clear

MAHJABEEN AFTAB, OT

Board-Certified Occupational Therapist (OTR/L — Functional & Daily Living Rehab) (225X00000X)
📍 224 N INDIAN HILL BLVD, CLAREMONT, CA, 91711-4609
📞 (909) 621-0447
NPI 1861312936
✓ OIG Clear

RUCHI AGARWAL

Licensed & Credentialed Speech, Language and Hearing Service Providers (235Z00000X)
📍 706 N DIAMOND BAR BLVD STE B, DIAMOND BAR, CA, 91765-1059
📞 (909) 396-8900
NPI 1548029549
✓ OIG Clear

JUDITH DIANA AGUILERA

Licensed & Credentialed Speech, Language and Hearing Service Providers (235Z00000X)
📍 23945 PALOMINO DR, DIAMOND BAR, CA, 91765-1720
📞 (626) 347-4799
NPI 1609583822
✓ OIG Clear

HENA AREL AHMED-SAID, PA

Licensed & Credentialed Physician Assistants & Advanced Practice Nursing Providers — Physician Assistant (363A00000X)
📍 309 E 2ND ST, POMONA, CA, 91766-1854
📞 (805) 668-6260
NPI 1265872444
✓ OIG Clear

AHN, LEE AND PARK DENTAL GROUP, INC

Licensed Doctor of Dental Surgery (DDS) / Doctor of Medicine in Dentistry (DMD) (122300000X)
📍 1155 S DIAMOND BAR BLVD STE D, DIAMOND BAR, CA, 91765-2235
📞 (818) 279-1634
NPI 1992561377
✓ OIG Clear

AJB PROSPERITY MENTAL HEALTH, NURSING PC

Licensed & Credentialed Physician Assistants & Advanced Practice Nursing Providers — Nurse Practitioner, Psychiatric — Mental Health (363LP0808X)
📍 1370 VALLEY VISTA DR STE 200, DIAMOND BAR, CA, 91765-3921
📞 (626) 384-0929
NPI 1982050175
✓ OIG Clear

LUBNA AKBANY, RD

Licensed & Credentialed Dietary & Nutritional Service Providers — Dietician, Registered, Nutrition, Renal (133VN1005X)
📍 5001 BIRCH ST, NEWPORT BEACH, CA, 92660-2116
📞 (714) 482-3596
NPI 1639767676
✓ OIG Clear

RAWAN AL YAFI

Licensed & Credentialed Pharmacist (183500000X)
📍 1235 S DIAMOND BAR BLVD, DIAMOND BAR, CA, 91765-4121
📞 (909) 861-9433
NPI 1770007999
✓ OIG Clear

ANAS AL-QAZZAZ, RPH

Licensed & Credentialed Pharmacist (183500000X)
📍 1400 BODEGA WAY UNIT 2, DIAMOND BAR, CA, 91765-2596
📞 (562) 977-7402
NPI 1265016687
✓ OIG Clear

AL-SAYED MD INC

Board-Certified Endocrinologist (Diabetes, Thyroid & Hormone Specialist) (207RE0101X)
📍 1375 ROLLING KNOLL RD, DIAMOND BAR, CA, 91765-2637
📞 (989) 980-8779
NPI 1023831682
✓ OIG Clear

ALAA HAJAL MD

Board-Certified Internist (Adult Diagnostic & Chronic Disease Physician) (207R00000X)
📍 1111 GRAND AVE STE L, DIAMOND BAR, CA, 91765-4172
📞 (909) 551-0205
NPI 1487883039
✓ OIG Clear

LUIS OSVALDO ALANIS, LVN

Licensed & Credentialed Licensed Vocational Nurse (164X00000X)
📍 801 E CHAPMAN AVE, FULLERTON, CA, 92831-3839
📞 (714) 680-9000
NPI 1356125082
✓ OIG Clear

MONA ALBATNIJI, DDS

Licensed Doctor of Dental Surgery (DDS) / Doctor of Medicine in Dentistry (DMD) (1223G0001X)
📍 14101 MAIN ST STE 104, HESPERIA, CA, 92345-8098
📞 (909) 964-7557
NPI 1164972048
✓ OIG Clear

ALBERS FAMILY COUNSELING

Licensed & Credentialed Behavioral Health & Social Service Providers — Psychologist, Clinical (103TC0700X)
📍 21660 COPLEY DR, DIAMOND BAR, CA, 91765-4173
📞 (909) 396-6888
NPI 1427004928
✓ OIG Clear

ALBERTSONS LLC

Licensed & Credentialed Suppliers — Pharmacy, Community — Retail Pharmacy (3336C0003X)
📍 1235 S DIAMOND BAR BLVD, DIAMOND BAR, CA, 91765-4121
📞 (909) 861-9433
NPI 1114990785
✓ OIG Clear

WILFREDO ALEJO, M.D.

Board-Certified Pediatrician (Infant, Child & Adolescent Medicine) (208000000X)
📍 1514 VALLEY VISTA DR, DIAMOND BAR, CA, 91765
📞 (909) 860-1144
NPI 1790485811
✓ OIG Clear

MUHAMED AKRAM ALI, rph

Licensed & Credentialed Pharmacist (183500000X)
📍 8201 GREENLEAF AVE, WHITTIER, CA, 90602-2910
📞 (562) 698-4906
NPI 1861148033
✓ OIG Clear

BRITTNEY N ALICEA

Licensed & Credentialed Social Worker (104100000X)
📍 902 S MYRTLE AVE, MONROVIA, CA, 91016-3427
📞 (626) 357-3258
NPI 1750895694
✓ OIG Clear

ALIREZA HALATI, MD MEDICAL CORPORATION

Licensed & Credentialed Allopathic & Osteopathic Physicians — General Practice (208D00000X)
📍 3220 S BREA CANYON RD STE F, DIAMOND BAR, CA, 91765-3481
📞 (909) 598-7868
NPI 1245759372
✓ OIG Clear

VARUN UTHAPPA ALLARANDA GANAPATHY, M.Sc. (SLP), CCC-SLP

Licensed & Credentialed Speech, Language and Hearing Service Providers (235Z00000X)
📍 706 N DIAMOND BAR BLVD, DIAMOND BAR, CA, 91765-1059
📞 (909) 396-8900
NPI 1780003418
✓ OIG Clear

ANTONIA ALLISON, MFTI

Licensed & Credentialed Behavioral Health & Social Service Providers — Marriage and Family Therapist (106H00000X)
📍 1011 N BEGONIA AVE STE 1009, ONTARIO, CA, 91762-2104
📞 (626) 991-3335
NPI 1851598254
✓ OIG Clear

ANNA DONNA ALONGI, PA-C

Licensed & Credentialed Physician Assistants & Advanced Practice Nursing Providers — Physician Assistant (363A00000X)
📍 2100 POWELL STREET, EMERYVILLE, CA, 94608-1803
📞 (510) 350-2600
NPI 1942586623
✓ OIG Clear

SILVIA ALONZO, MS, PA-C

Licensed & Credentialed Physician Assistants & Advanced Practice Nursing Providers — Physician Assistant, Medical (363AM0700X)
📍 1514 VALLEY VISTA DR, DIAMOND BAR, CA, 91765-3929
📞 (909) 860-1144
NPI 1154812873
✓ OIG Clear

NADIA ALVAREZ, MS, LMFT

Licensed & Credentialed Behavioral Health & Social Service Providers — Marriage and Family Therapist (106H00000X)
📍 21660 COPLEY DR STE 210, DIAMOND BAR, CA, 91765-4109
📞 (909) 287-1071
NPI 1205536984
✓ OIG Clear

JESSICA AMADOR-CASTELLANOS, DC

Licensed & Credentialed Chiropractic Providers — Chiropractor (111N00000X)
📍 406 S PROSPECTORS RD, DIAMOND BAR, CA, 91765-1659
📞 (909) 860-0148
NPI 1124830187
✓ OIG Clear

AMANA MED TRANS LLC

Licensed & Credentialed Non-emergency Medical Transport (VAN) (343900000X)
📍 829 S LEMON AVE STE A11C, DIAMOND BAR, CA, 91789-2901
📞 (213) 444-8247
NPI 1457540460
✓ OIG Clear

AMAR MEDICAL GROUP INC

Board-Certified Internist (Adult Diagnostic & Chronic Disease Physician) (207R00000X)
📍 21345 COLD SPRING LN, DIAMOND BAR, CA, 91765-3443
📞 (909) 839-0808
NPI 1972118958
✓ OIG Clear

AMARA HOSPICE CARE, INC.

Licensed & Credentialed Agencies — Hospice Care, Community Based (251G00000X)
📍 1370 VALLEY VISTA DR STE 200, DIAMOND BAR, CA, 91765-3921
📞 (213) 292-2973
NPI 1114686862
✓ OIG Clear

AMERICAN FERTILITY CALIFORNIA CORP

Board-Certified Endocrinologist (Diabetes, Thyroid & Hormone Specialist) (207VE0102X)
📍 1370 VALLEY VISTA DR STE 135, DIAMOND BAR, CA, 91765-3950
📞 (909) 777-8888
NPI 1093354839
✓ OIG Clear

AMERICAN FERTILITY MEDICAL CENTER CORPORATION

Licensed Outpatient Medical Clinic / Urgent Care & Ambulatory Center (261QA0006X)
📍 1370 VALLEY VISTA DR SUITE 135, DIAMOND BAR, CA, 91765
📞 (909) 777-8888
NPI 1376282707
✓ OIG Clear

AMERICAN LEARNING AND VISION ASSOCIATION

Licensed & Credentialed Eye and Vision Service Providers — Optometrist (152W00000X)
📍 1345 S DIAMOND BAR BLVD, DIAMOND BAR, CA, 91765
📞 (909) 653-1888
NPI 1588749915
✓ OIG Clear

BARBARA ANNE AMMON, Ph.D.

Licensed & Credentialed Behavioral Health & Social Service Providers — Psychologist, Clinical (103TC0700X)
📍 750 N DIAMOND BAR BLVD, DIAMOND BAR, CA, 91765-1023
📞 (909) 396-7715
NPI 1851404628
✓ OIG Clear

KERRY SCOT ANDERSON, O.D.

Licensed & Credentialed Eye and Vision Service Providers — Optometrist (152W00000X)
📍 14335 PIPELINE AVE, CHINO, CA, 91710-5642
📞 (909) 628-8860
NPI 1215205091
✓ OIG Clear

TERESA ANDERSON, P.A.

Licensed & Credentialed Physician Assistants & Advanced Practice Nursing Providers — Physician Assistant, Medical (363AM0700X)
📍 1200 S DIAMOND BAR BLVD STE 201, DIAMOND BAR, CA, 91765-2298
📞 (909) 860-7600
NPI 1386330439
✓ OIG Clear

ANEES MD, INC

Board-Certified Internist (Adult Diagnostic & Chronic Disease Physician) (207R00000X)
📍 1566 SUNBLUFF DR, DIAMOND BAR, CA, 91765-3906
📞 (310) 561-0625
NPI 1326196114
✓ OIG Clear

JOHN G. ANG, MD

Licensed & Credentialed Allopathic & Osteopathic Physicians — General Practice (208D00000X)
📍 23525 GOLDEN SPRINGS DR, DIAMOND BAR, CA, 91765-2175
📞 (909) 861-6828
NPI 1790393718
✓ OIG Clear

ANGELES DEL SOL ADHC, LLC

Licensed Outpatient Medical Clinic / Urgent Care & Ambulatory Center (261QA0600X)
📍 820 N DIAMOND BAR BLVD, DIAMOND BAR, CA, 91765-1039
📞 (626) 322-2777
NPI 1548048556
✓ OIG Clear

ANGELES DEL SOL ADHC, LLC

Licensed Outpatient Medical Clinic / Urgent Care & Ambulatory Center (261QC1500X)
📍 820 N DIAMOND BAR BLVD, DIAMOND BAR, CA, 91765-1039
📞 (626) 322-2777
NPI 1023852993
✓ OIG Clear

ANGELES DEL SOL CALAIM LLC

Licensed Outpatient Medical Clinic / Urgent Care & Ambulatory Center (261QC1500X)
📍 820 N DIAMOND BAR BLVD, DIAMOND BAR, CA, 91765-1039
📞 (626) 322-2777
✓ Copied to clipboard