Gaurab Basu, MD
NPI 1538488812 · Internal Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gaurab Basu, MD is a Internal Medicine Physician provider in Boston, MA (NPI 1538488812).
Provider details
- NPI number
- 1538488812
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 255713 (MA)
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
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
44 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 | 44 | $93 |
Typical Medicare-allowed amounts for these services range $93–$93 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 95 | 32 |
| Lisinopril | 78 | 20 |
| Amlodipine Besylate | 63 | 18 |
| Metformin Hclbrand: Metformin Hcl Er | 56 | 15 |
| Omeprazole | 42 | 14 |
| Simvastatin | 40 | 11 |
| Dulaglutide |
Practice location
Mailing address
Additional practice locations (1)
- 10 Gove StEast Boston, MA 02128-1920Phone: (617) 569-5800Fax: (617) 568-4780
Registry dates
- Enumerated
- 2010-05-25
- Last updated
- 2025-07-16
- Certified
- 2025-07-16
Frequently asked questions
- What is Gaurab Basu's NPI number?
- Gaurab Basu's National Provider Identifier (NPI) is 1538488812, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gaurab Basu's specialty?
- Gaurab Basu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gaurab Basu located?
- Gaurab Basu's practice location on file with NPPES is 75 Francis St, Boston, MA 02115-6110.
- What is Gaurab Basu's phone number?
- The practice phone number listed in the NPPES registry for Gaurab Basu is (617) 732-6040.
- Does Gaurab Basu accept Medicare?
- Gaurab Basu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gaurab Basu's NPI active?
- Yes — Gaurab Basu's NPI (1538488812) is active in the NPPES registry as of the last update on 2025-07-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.