NPI Data Registry NPPES + PECOS + OIG
NPI DATA REGISTRY (https://npidata.net) — FEDERAL CREDENTIALING & OIG SANCTION AUDIT RECORD
Generated: 2026-11-11 21:03 UTC • Sources: CMS NPPES v2.1 + CMS PECOS + HHS OIG LEIE (84,224 records)
Home › Nephrology & Kidney Disease Specialists › AMES, IA › NPI #1558357376
✓ Board-Certified Nephrologist (Kidney Function, Stones & Dialysis Specialist) (207RN0300X) ✓ HHS OIG Screened Clear ✓ Medicare PECOS Enrolled 🩺 Entity Type 1 (Individual)

JACOB CHERUKARA ALEXANDER, MD (NPI #1558357376)

Internal Medicine, Nephrology • AMES, IA • Status: Active Federal Registration

⚙️ JSON API
CMS-1500 Box 24J / 33a • NPI
1558357376
Type 1 Individual Rendering/Ordering
HIPAA NUCC Taxonomy • CMS Code
207RN0300X (CMS 11)
Board-Certified Nephrologist (Kidney Function, Stones & Dialysis Specialist)
Box 32 Service Location & ZIP+4
1015 DUFF AVE, AMES, IA, 50010-3014
✓ 9-Digit EDI 837 ZIP+4 (50010-3014)
Practice Phone & Referral Fax
(515) 239-4760
Fax: (515) 239-4420
✓ HHS OIG LEIE Sanction Screening — VERIFIED CLEAR: NPI 1558357376 (JACOB CHERUKARA ALEXANDER, MD) has 0 active federal exclusions across all 84,224 HHS OIG LEIE sanction records (Database Verified: 2026-11-11).

CMS Medicare Order & Referring PECOS Eligibility

Medicare Part B
✓ Eligible
DMEPOS Ordering
✓ Eligible
Home Health (HHA)
✓ Eligible
Power Mobility
✓ Eligible
Hospice Referring
✓ Eligible

Empirical CMS Medicare Claims, CPT Utilization & Part D Prescribing (NPI #1558357376)

Medicare Beneficiaries
614
Total Billed Services
10,951
Distinct CPT/HCPCS Codes
90
Medicare Allowed Total
$339,408.89

Actual Top Billed CPT / HCPCS Procedures (CMS Part B)

CPT / HCPCSClinical Procedure DescriptionServices
36415 Insertion of needle into vein for collection of blood sample980
80047 Blood test, basic group of blood chemicals (calcium, ionized)109
80048 Blood test, basic group of blood chemicals (calcium, total)130
80069 Kidney function blood test panel711
80076 Liver function blood test panel35
81001 Manual urinalysis test with examination using microscope, automated395
81003 Automated urinalysis test293
82040 Albumin (protein) level26

Actual Top Prescribed Medications (CMS Part D)

Brand / Generic MedicationTotal ClaimsPatients
Allopurinol
Allopurinol		4413
Amlodipine Besylate
Amlodipine Besylate		19150
Amlodipine Besylate-Benazepril
Amlodipine Besylate/Benazepril		11<11
Benazepril Hcl
Benazepril Hcl		16<11
Bumetanide
Bumetanide		11730
Calcitriol
Calcitriol		22<11
Calcium Acetate
Calcium Acetate		11629
Carvedilol
Carvedilol		6316

Official CMS NPPES Credential & Practice Profile

10-Digit NPI Number1558357376 (NPI-1 Individual Practitioner)
Provider / Legal NameJACOB CHERUKARA ALEXANDER, MD
Plain-English SpecialtyBoard-Certified Nephrologist (Kidney Function, Stones & Dialysis Specialist)
NUCC Code: 207RN0300X (Internal Medicine, Nephrology)
Certifying / Licensing BodyAmerican Board of Internal Medicine — Nephrology
Practice Location Address1015 DUFF AVE, AMES, IA, 50010-3014
Practice Telephone / FaxTel: (515) 239-4760 | Fax: (515) 239-4420
Administrative Mailing Address1015 DUFF AVE, AMES, IA, 50010-3014
Enumeration & Last SyncEnumerated: 2005-09-27 | CMS Record Updated: 2020-11-10

Clinic Location, Accessibility & Directions

📍 Practice Location & Patient Access

1015 DUFF AVE, AMES, IA, 50010-3014

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Plain-English Taxonomy & CMS Crosswalk (207RN0300X)

What Does Taxonomy Code 207RN0300X Mean?

In the HIPAA National Uniform Claim Committee (NUCC) classification, code 207RN0300X translates to:
"Board-Certified Nephrologist (Kidney Function, Stones & Dialysis Specialist)"

CMS-1500 Medicare Specialty Crosswalk: CMS Code 11 (Physician/Internal Medicine) • CMS Code 39 (Physician/Nephrology)
Certifying / Accrediting Authority: American Board of Internal Medicine — Nephrology
Clinical Scope: Declining kidney function (high creatinine / low eGFR), protein or blood in urine, recurrent kidney stones, electrolyte imbalances, or severe hypertension.

Specialty Clinical Procedures & Therapeutic Classes

Standard Scope of Care (JACOB CHERUKARA ALEXANDER, MD)

Typical CPT / Diagnostic Procedures:
  • Chronic Kidney Disease (eGFR & Albuminuria) Staging & Renoprotective Planning
  • 24-Hour Urine Metabolic Evaluation for Recurrent Kidney Stones
  • Outpatient Hemodialysis & Peritoneal Dialysis Oversight (CPT 90960)
  • Renal Biopsy Evaluation & Secondary Hypertension Workup
Common Therapeutic Classes:
  • SGLT2 Inhibitors (Dapagliflozin, Empagliflozin) & Finerenone for CKD
  • ACE Inhibitors / ARBs for Proteinuria Reduction
  • Potassium Citrate & Thiazide Diuretics (Kidney Stone Prevention)
  • Erythropoiesis-Stimulating Agents & Phosphate Binders

All Registered NUCC Taxonomies & State Licenses

Taxonomy Code & Plain-English DescriptionState License & Primary Status
207RN0300X — Internal Medicine, Nephrology
Plain English: Board-Certified Nephrologist (Kidney Function, Stones & Dialysis Specialist)		State: IA | License: 34058 | Primary: Yes (Primary)
Medical Billing, RCM & Hospital Credentialing Teams:
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