John Ostrominski
NPI 1740770155 · Cardiovascular Disease Physician · Boston, MA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Ostrominski is a Cardiovascular Disease Physician provider in Boston, MA (NPI 1740770155).
Provider details
- NPI number
- 1740770155
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 291118 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
8 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 26 | 12 |
| Empagliflozinbrand: Jardiance | 19 | — |
| Carvedilol | 14 | — |
| Metoprolol Succinate | 13 | — |
| Semaglutidebrand: Ozempic | 13 | — |
| Atorvastatin Calcium | 12 | — |
| Alirocumab |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,752 across 22 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
Registry dates
- Enumerated
- 2018-05-11
- Last updated
- 2026-06-01
- Certified
- 2026-06-01
Frequently asked questions
- What is John Ostrominski's NPI number?
- John Ostrominski's National Provider Identifier (NPI) is 1740770155, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Ostrominski's specialty?
- John Ostrominski is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is John Ostrominski located?
- John Ostrominski's practice location on file with NPPES is 75 Francis St, Boston, MA 02115-6110.
- What is John Ostrominski's phone number?
- The practice phone number listed in the NPPES registry for John Ostrominski is (617) 732-5500.
- Does John Ostrominski accept Medicare?
- John Ostrominski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Ostrominski's NPI active?
- Yes — John Ostrominski's NPI (1740770155) is active in the NPPES registry as of the last update on 2026-06-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.