Stephen Mastrianni, DO
NPI 1174518211 · Internal Medicine Physician · Brooklyn, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Mastrianni, DO is a Internal Medicine Physician provider in Brooklyn, NY (NPI 1174518211).
Provider details
- NPI number
- 1174518211
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 183073 (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
20 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
3,775 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 1,806 | $85 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 959 | $123 |
| Residence Visit for Established Patient With Straightforward Medical Decision Making, Per Day, If Using Time, at Least 15 Minutes99347 | 184 | $51 |
| Residence Visit for Established Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99348 | 147 | $86 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 143 | $148 |
| 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 · 232 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 902 | 153 |
| Levothyroxine Sodium | 727 | 115 |
| Amlodipine Besylate | 626 | 113 |
| Apixabanbrand: Eliquis | 512 | 56 |
| Furosemide | 489 | 83 |
| Losartan Potassium | 466 | 82 |
| Lisinopril |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-14
- Last updated
- 2007-12-05
Frequently asked questions
- What is Stephen Mastrianni's NPI number?
- Stephen Mastrianni's National Provider Identifier (NPI) is 1174518211, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Mastrianni's specialty?
- Stephen Mastrianni is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Mastrianni located?
- Stephen Mastrianni's practice location on file with NPPES is 1833 Benson Ave, Brooklyn, NY 11214-3817.
- What is Stephen Mastrianni's phone number?
- The practice phone number listed in the NPPES registry for Stephen Mastrianni is (718) 236-3880.
- Does Stephen Mastrianni accept Medicare?
- Stephen Mastrianni is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Mastrianni's NPI active?
- Yes — Stephen Mastrianni's NPI (1174518211) is active in the NPPES registry as of the last update on 2007-12-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.