Miriam Barshak, MD
NPI 1154370583 · Internal Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Miriam Barshak, MD is a Internal Medicine Physician provider in Boston, MA (NPI 1154370583).
Provider details
- NPI number
- 1154370583
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 202622 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
547 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 Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 139 | $81 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 84 | $150 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 50 | $192 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 40 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 38 | $139 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Meropenem | 54 | — |
| Amoxicillin | 44 | 12 |
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 41 | — |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 37 | 13 |
| Posaconazole | 26 | — |
| Valacyclovir Hclbrand: Valacyclovir | 18 | — |
| Omadacycline Tosylatebrand: Nuzyra | 18 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-10
- Last updated
- 2020-05-29
- Certified
- 2020-05-29
Frequently asked questions
- What is Miriam Barshak's NPI number?
- Miriam Barshak's National Provider Identifier (NPI) is 1154370583, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Miriam Barshak's specialty?
- Miriam Barshak is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Miriam Barshak located?
- Miriam Barshak's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2696.
- What is Miriam Barshak's phone number?
- The practice phone number listed in the NPPES registry for Miriam Barshak is (617) 726-2000.
- Does Miriam Barshak accept Medicare?
- Miriam Barshak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Miriam Barshak's NPI active?
- Yes — Miriam Barshak's NPI (1154370583) is active in the NPPES registry as of the last update on 2020-05-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.