Gary Zagon, MD
NPI 1649244526 · Rheumatology Physician · New York, NY
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gary Zagon, MD is a Rheumatology Physician provider in New York, NY (NPI 1649244526).
Provider details
- NPI number
- 1649244526
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 177084 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
976 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 400 | $142 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 379 | $9 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 149 | $186 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 32 | $125 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 16 | $201 |
Typical Medicare-allowed amounts for these services range $9–$201 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methotrexate Sodiumbrand: Methotrexate | 223 | 69 |
| Alendronate Sodium | 140 | 48 |
| Prednisone | 116 | 47 |
| Allopurinol | 98 | 30 |
| Adalimumabbrand: Humira(cf) Pen | 64 | 13 |
| Hydroxychloroquine Sulfate | 50 | 18 |
| Etanerceptbrand: Enbrel Sureclick |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-15
- Last updated
- 2021-04-02
- Certified
- 2021-04-02
Frequently asked questions
- What is Gary Zagon's NPI number?
- Gary Zagon's National Provider Identifier (NPI) is 1649244526, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Zagon's specialty?
- Gary Zagon is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Gary Zagon located?
- Gary Zagon's practice location on file with NPPES is 333 E 38th St, New York, NY 10016-2772.
- What is Gary Zagon's phone number?
- The practice phone number listed in the NPPES registry for Gary Zagon is (646) 501-7400.
- Does Gary Zagon accept Medicare?
- Gary Zagon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gary Zagon's NPI active?
- Yes — Gary Zagon's NPI (1649244526) is active in the NPPES registry as of the last update on 2021-04-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.