Leonard Naymagon, MD
NPI 1952712234 · Hematology (Internal Medicine) Physician · New York, NY
Enrolled with Medicare as Practitioner - Hematology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leonard Naymagon, MD is a Hematology (Internal Medicine) Physician provider in New York, NY (NPI 1952712234).
Provider details
- NPI number
- 1952712234
- Entity type
- Individual
- Primary specialty
- Hematology (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
512 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 97 | $71 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 91 | $106 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 53 | $129 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 49 | $147 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 42 | $188 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
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 |
|---|---|---|
| Apixabanbrand: Eliquis | 300 | 63 |
| Rivaroxabanbrand: Xarelto | 102 | 23 |
| Imatinib Mesylate | 39 | — |
| Epoetin Alfabrand: Procrit | 39 | — |
| Warfarin Sodium | 29 | — |
| Hydroxyurea | 27 | — |
| Tranexamic Acid | 26 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$41 across 2 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
Additional practice locations (2)
- 1 Gustave L Levy PlNew York, NY 10029-6504Phone: (212) 241-6756
- 550 1st AveNyu Langone Medical CenterNew York, NY 10016-6402Phone: (212) 263-5506
Registry dates
- Enumerated
- 2014-05-08
- Last updated
- 2020-07-06
- Certified
- 2020-07-06
Frequently asked questions
- What is Leonard Naymagon's NPI number?
- Leonard Naymagon's National Provider Identifier (NPI) is 1952712234, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leonard Naymagon's specialty?
- Leonard Naymagon is listed in the NPPES registry with a primary specialty of Hematology (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Leonard Naymagon located?
- Leonard Naymagon's practice location on file with NPPES is 10 E 102nd St, New York, NY 10029-6030.
- What is Leonard Naymagon's phone number?
- The practice phone number listed in the NPPES registry for Leonard Naymagon is (212) 241-6756.
- Does Leonard Naymagon accept Medicare?
- Leonard Naymagon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leonard Naymagon's NPI active?
- Yes — Leonard Naymagon's NPI (1952712234) is active in the NPPES registry as of the last update on 2020-07-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.