Gary Feldman, MD
NPI 1841220373 · Rheumatology Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gary Feldman, MD is a Rheumatology Physician provider in Los Angeles, CA (NPI 1841220373).
Provider details
- NPI number
- 1841220373
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G43953 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,752 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 440 | $137 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 303 | $149 |
| Administration of Non-Hormonal Anti-Neoplastic Chemotherapy Under Skin Or Into Muscle96401 | 282 | $82 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 184 | $7 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 169 | $17 |
| Injection of Drug Or Substance Under Skin Or Into Muscle |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methotrexate Sodiumbrand: Methotrexate | 142 | 41 |
| Celecoxib | 43 | 17 |
| Prednisone | 41 | 16 |
| Gabapentin | 38 | 18 |
| Meloxicam | 31 | 17 |
| Hydroxychloroquine Sulfate | 30 | — |
| Leflunomide | 29 | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$899 across 18 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-03
- Last updated
- 2007-07-08
Frequently asked questions
- What is Gary Feldman's NPI number?
- Gary Feldman's National Provider Identifier (NPI) is 1841220373, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Feldman's specialty?
- Gary Feldman is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Gary Feldman located?
- Gary Feldman's practice location on file with NPPES is 5230 Pacific Concourse Dr, Los Angeles, CA 90045-6200.
- What is Gary Feldman's phone number?
- The practice phone number listed in the NPPES registry for Gary Feldman is (310) 297-9221.
- Does Gary Feldman accept Medicare?
- Gary Feldman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gary Feldman's NPI active?
- Yes — Gary Feldman's NPI (1841220373) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.