Jeffrey Bass, MD
NPI 1952350969 · Internal Medicine Physician · Chestnut Hill, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jeffrey Bass, MD is a Internal Medicine Physician provider in Chestnut Hill, MA (NPI 1952350969).
Provider details
- NPI number
- 1952350969
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 53774 (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
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
1,200 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 | 339 | $131 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 226 | $184 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 206 | $92 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 155 | $15 |
| Administration of Influenza Virus VaccineG0008 | 118 | $27 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 110 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 416 | 112 |
| Metoprolol Succinate | 182 | 44 |
| Lisinopril | 179 | 48 |
| Amlodipine Besylate | 170 | 51 |
| Trazodone Hcl | 169 | 55 |
| Apixabanbrand: Eliquis | 161 | 35 |
| Levothyroxine Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-08
- Last updated
- 2009-06-05
Frequently asked questions
- What is Jeffrey Bass's NPI number?
- Jeffrey Bass's National Provider Identifier (NPI) is 1952350969, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffrey Bass's specialty?
- Jeffrey Bass is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jeffrey Bass located?
- Jeffrey Bass's practice location on file with NPPES is 25 Boylston St, Chestnut Hill, MA 02467-1715.
- What is Jeffrey Bass's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey Bass is (617) 307-3200.
- Does Jeffrey Bass accept Medicare?
- Jeffrey Bass is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jeffrey Bass's NPI active?
- Yes — Jeffrey Bass's NPI (1952350969) is active in the NPPES registry as of the last update on 2009-06-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.