Mark Fierstein, MD
NPI 1457426876 · Internal Medicine Physician · New Hyde Park, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Fierstein, MD is a Internal Medicine Physician provider in New Hyde Park, NY (NPI 1457426876).
Provider details
- NPI number
- 1457426876
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 157391 (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
2,088 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 | 541 | $146 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 455 | $9 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 331 | $17 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 288 | $147 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 257 | $104 |
| Administration of Influenza Virus VaccineG0008 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 78 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 354 | 97 |
| Amlodipine Besylate | 236 | 56 |
| Rosuvastatin Calcium | 173 | 42 |
| Levothyroxine Sodium | 158 | 39 |
| Hydrochlorothiazide | 133 | 38 |
| Zolpidem Tartrate | 125 | 23 |
| Metoprolol Succinate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-21
- Last updated
- 2021-03-30
- Certified
- 2021-03-30
Frequently asked questions
- What is Mark Fierstein's NPI number?
- Mark Fierstein's National Provider Identifier (NPI) is 1457426876, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Fierstein's specialty?
- Mark Fierstein is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Fierstein located?
- Mark Fierstein's practice location on file with NPPES is 2001 Marcus Ave Ste S265, New Hyde Park, NY 11042-1035.
- What is Mark Fierstein's phone number?
- The practice phone number listed in the NPPES registry for Mark Fierstein is (516) 686-0500.
- Does Mark Fierstein accept Medicare?
- Mark Fierstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Fierstein's NPI active?
- Yes — Mark Fierstein's NPI (1457426876) is active in the NPPES registry as of the last update on 2021-03-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.