Marc Rybstein, M.D.
NPI 1538393822 · Cardiovascular Disease Physician · Brooklyn, NY
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marc Rybstein, M.D. is a Cardiovascular Disease Physician provider in Brooklyn, NY (NPI 1538393822).
Provider details
- NPI number
- 1538393822
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 253288 (NY)
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
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
4,206 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 | 505 | $146 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 462 | $213 |
| Ultrasound of Both Sides of Head and Neck Blood Flow93880 | 360 | $219 |
| Technetium Tc-99m Sestamibi, Diagnostic, Per Study DoseA9500 | 302 | $125 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 210 | $17 |
| Complete Ultrasound of Aorta, Vena Cava, Groin Vessels Or Bypass Grafts93978 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 157 | 110 |
| Metoprolol Succinate | 108 | 64 |
| Amlodipine Besylate | 97 | 67 |
| Losartan Potassium | 61 | 40 |
| Rosuvastatin Calcium | 41 | 28 |
| Furosemide | 29 | 17 |
| Dapagliflozin Propanediol |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$271 across 13 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 (1)
- 447 Fenimore StreetBrooklyn, NY 11225Phone: (718) 303-0851
Registry dates
- Enumerated
- 2009-05-14
- Last updated
- 2026-02-12
- Certified
- 2026-02-12
Frequently asked questions
- What is Marc Rybstein's NPI number?
- Marc Rybstein's National Provider Identifier (NPI) is 1538393822, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marc Rybstein's specialty?
- Marc Rybstein is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Marc Rybstein located?
- Marc Rybstein's practice location on file with NPPES is 828 Utica Ave, Brooklyn, NY 11203-3409.
- What is Marc Rybstein's phone number?
- The practice phone number listed in the NPPES registry for Marc Rybstein is (718) 303-0851.
- Does Marc Rybstein accept Medicare?
- Marc Rybstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marc Rybstein's NPI active?
- Yes — Marc Rybstein's NPI (1538393822) is active in the NPPES registry as of the last update on 2026-02-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.