Jeffrey C. Bass, MD
Internal Medicine Physician · Chestnut Hill, MA
Jeffrey C. Bass, MD is an internal medicine physician with a practice address in Chestnut Hill, Massachusetts, and NPI 1952350969, issued on May 8, 2006. Check the license (Massachusetts 53774, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Jeffrey C. Bass
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 53774 MA
Self-reported in NPPES; status is on the state search - Practice location
- 25 Boylston St, Chestnut Hill, MA 02467
- Phone
- (617) 307-3200
- Enumerated
- May 8, 2006
- Record last updated
- Jun 5, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (617) 307-3201
- Medicaid ID
- 6185142 MA
- Medicare enrollment
- Enrolled (PECOS I20050329000697); accepts Medicare assignment
- Medical or professional school
- Perelman School Of Med At The University Of Pennsylvania, 1982
- Entity
- Type 1 · individual
Also registered at 25 Boylston St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Victoria Albano, CPNPPediatric Nurse Practitioner1891128146
- Dania Ali-Ahmad, M.D.Pediatric Infectious Diseases Physician1639110075
- David August, M.D.Internal Medicine Physician1760420079
- Kimberly Bayliss, RN, PNPPediatric Nurse Practitioner1861785917
- Elaine Fitzgerald, RN, CPNP-PCPediatric Nurse Practitioner1710393640
- Susan Frankl, M.D.Internal Medicine Physician1467564138
Verify Jeffrey C. Bass in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 53774Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% more Medicare Part D claims than the average internal medicine physician in 2024
5,438 Medicare Part D claims for 262 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 88 claims were for opioids.
Most prescribed
- Atorvastatin Calcium416 claims
- Metoprolol Succinate182 claims
- Lisinopril179 claims
- Amlodipine Besylate170 claims
- Trazodone Hcl169 claims
- Eliquis161 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 11.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Personalmds, LLCChestnut Hill, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
65 internal medicine physician records list a practice address in Chestnut Hill
They are 65 of the 772 NPPES records with a practice address in Chestnut Hill, and 6,825 internal medicine physician records in Massachusetts.
All 65 in Chestnut Hill → All 6,825 in Massachusetts → Every provider in Chestnut Hill →
Other internal medicine physician records in Massachusetts
- Nawal Aamir, MDWorcester, MA1588248926
- Nathan Abare, MDSpringfield, MA1386852747
- Nooshin Abbasi, MD MPHNewton, MA1831888353
- Taimur AbbasiBoston, MA1841673522
- Lauren Abbate, MDBoston, MA1922099621
- Bassima Abdallah, MDBoston, MA1912327305
- Maya Abdallah, MDBoston, MA1861854937
- Samah Abdallah, MDBrighton, MA1730814971
- Omar Abdel-Wahab, M.D.Boston, MA1023042777
- Mohab AbdelhalimBoston, MA1871388496
Common questions
What is Jeffrey C. Bass, MD's NPI number?
Jeffrey C. Bass, MD's National Provider Identifier (NPI) is 1952350969, issued on May 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey C. Bass, MD located?
The NPPES record lists a practice address at 25 Boylston St, Chestnut Hill, MA, 02467. Phone: (617) 307-3200. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey C. Bass, MD's license?
NPPES lists Massachusetts license number 53774, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jeffrey C. Bass, MD prescribe under Medicare Part D?
In 2024, Jeffrey C. Bass, MD had 5,438 Medicare Part D claims for 262 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Jeffrey C. Bass, MD's MIPS final score?
The 2023 MIPS final score is 11.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.