CHRISTIAN DEREFIELD, P.A. — NPI 1124130976 (Licensed & Credentialed Physician Assistants & Advanced Practice Nursing Providers — Physician Assistant, Medical in IRWINDALE, CA)

CMS-1500 Box 24J / 33a • NPI

1124130976

Type 1 Individual Rendering/Ordering

HIPAA NUCC Taxonomy • CMS Code

363AM0700X (CMS 97)

Licensed & Credentialed Physician Assistants & Advanced Practice Nursing Providers — Physician Assistant, Medical

Box 32 Service Location & ZIP+4

6520 N IRWINDALE AVE, 100, IRWINDALE, CA, 91702-2801

✓ 9-Digit EDI 837 ZIP+4 (91702-2801)

Practice Phone & Referral Fax

(626) 812-0366

Fax: (626) 812-5952

✓ HHS OIG LEIE Sanction Screening — VERIFIED CLEAR: NPI 1124130976 (CHRISTIAN DEREFIELD, P.A.) 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

This practitioner does not currently appear in the CMS individual Order & Referring PECOS file (may practice in pediatrics, commercial-only networks, or hospital-employed settings).

Official CMS NPPES Credential & Practice Profile

10-Digit NPI Number	`1124130976` (NPI-1 Individual Practitioner)
Provider / Legal Name	CHRISTIAN DEREFIELD, P.A.
Plain-English Specialty	Licensed & Credentialed Physician Assistants & Advanced Practice Nursing Providers — Physician Assistant, Medical NUCC Code: `363AM0700X` (Physician Assistant, Medical)
Certifying / Licensing Body	State Medical / Healthcare Licensing Board & National Specialty Board
Practice Location Address	6520 N IRWINDALE AVE, 100, IRWINDALE, CA, 91702-2801
Practice Telephone / Fax	Tel: (626) 812-0366 \| Fax: (626) 812-5952
Administrative Mailing Address	PO BOX 77607, CORONA, CA, 92877-0120
Enumeration & Last Sync	Enumerated: 2006-08-31 \| CMS Record Updated: 2016-07-13

Clinic Location, Accessibility & Directions

📍 Practice Location & Patient Access

6520 N IRWINDALE AVE, 100, IRWINDALE, CA, 91702-2801

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Plain-English Taxonomy & CMS Crosswalk (363AM0700X)

What Does Taxonomy Code 363AM0700X Mean?

In the HIPAA National Uniform Claim Committee (NUCC) classification, code 363AM0700X translates to:
"Licensed & Credentialed Physician Assistants & Advanced Practice Nursing Providers — Physician Assistant, Medical"

CMS-1500 Medicare Specialty Crosswalk: CMS Code 97 (Physician Assistant)
Certifying / Accrediting Authority: State Medical / Healthcare Licensing Board & National Specialty Board
Clinical Scope: Consult a verified Physician Assistant, Medical for specialized diagnostic evaluation, treatment planning, and continuity of care.

Specialty Clinical Procedures & Therapeutic Classes

Standard Scope of Care (CHRISTIAN DEREFIELD, P.A.)

Typical CPT / Diagnostic Procedures:

Comprehensive Outpatient & Inpatient Clinical Evaluation (CPT 99202–99215)
Diagnostic Workup, Laboratory Ordering & Evidence-Based Care Coordination
Preventive Screening, Patient Counseling & Multidisciplinary Referral

Common Therapeutic Classes:

Evidence-Based Specialty Pharmacotherapy & Preventive Regimens (CMS Part D Standard)

All Registered NUCC Taxonomies & State Licenses

Taxonomy Code & Plain-English Description	State License & Primary Status
`363AM0700X` — Physician Assistant, Medical Plain English: Licensed & Credentialed Physician Assistants & Advanced Practice Nursing Providers — Physician Assistant, Medical	State: CA \| License: `PA14172` \| Primary: Yes (Primary)

Medical Billing, RCM & Hospital Credentialing Teams:

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CHRISTIAN DEREFIELD, P.A. (NPI #1124130976)