Sheldon Markowitz, MD
NPI 1548368608 · Endocrinology, Diabetes & Metabolism Physician · Far Rockaway, NY
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sheldon Markowitz, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Far Rockaway, NY (NPI 1548368608).
Provider details
- NPI number
- 1548368608
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 137797-2 (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
19 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
30 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 Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 30 | $39 |
Typical Medicare-allowed amounts for these services range $39–$39 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metformin Hcl | 67 | — |
| Levothyroxine Sodium | 60 | 18 |
| Empagliflozinbrand: Jardiance | 42 | — |
| Atorvastatin Calcium | 34 | — |
| Losartan Potassium | 27 | — |
| Dulaglutidebrand: Trulicity | 23 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-20
- Last updated
- 2007-10-19
Frequently asked questions
- What is Sheldon Markowitz's NPI number?
- Sheldon Markowitz's National Provider Identifier (NPI) is 1548368608, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sheldon Markowitz's specialty?
- Sheldon Markowitz is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Sheldon Markowitz located?
- Sheldon Markowitz's practice location on file with NPPES is 327 Beach 19th St, Far Rockaway, NY 11691-4423.
- What is Sheldon Markowitz's phone number?
- The practice phone number listed in the NPPES registry for Sheldon Markowitz is (718) 869-7674.
- Does Sheldon Markowitz accept Medicare?
- Sheldon Markowitz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sheldon Markowitz's NPI active?
- Yes — Sheldon Markowitz's NPI (1548368608) is active in the NPPES registry as of the last update on 2007-10-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.