Catherine Ann Sullivan, M.D.
Endocrinology, Diabetes & Metabolism Physician · Boston, MA
Catherine Ann Sullivan, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Boston, Massachusetts, and NPI 1598031403, issued on Mar 25, 2012. Check the license (Massachusetts 269544, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Catherine Ann Sullivan
- Credential
- M.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 269544 MA
Self-reported in NPPES; status is on the state search - Practice location
- 732 Harrison Ave, Boston, MA 02118
- Phone
- (617) 638-7470
- Enumerated
- Mar 25, 2012
- Record last updated
- Sep 7, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (617) 638-7449
- Medicaid ID
- 110107755A MA
- Medicare enrollment
- Enrolled (PECOS I20170815000178); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 522 in Massachusetts → Look up another NPI →
Also registered at 732 Harrison Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Catherine Ann Sullivan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 269544Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
2,083 Medicare Part D claims for 225 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.
Most prescribed
- Levothyroxine Sodium150 claims
- Trulicity150 claims
- Metformin Hcl127 claims
- Lantus Solostar118 claims
- Mounjaro103 claims
- Ozempic91 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.
Bills Medicare through 2 group practices
- Evans Medical Foundation IncBoston, MA
- Internal Medical Associates-EbnhcEast Boston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Catherine Ann Sullivan among 522 endocrinology, diabetes & metabolism physician records in Massachusetts
Catherine Ann Sullivan, M.D. is one of 522 endocrinology, diabetes & metabolism physician records with a practice address in Massachusetts. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 72% of them.
- NPI issued2012 · 72% of these records are older, 25% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2012 · median 2002 among the 378 with a school on file
- Record last updated2017 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Massachusetts
There are 522 endocrinology, diabetes & metabolism physician records in Massachusetts.
All 522 in Massachusetts → Every provider in Boston → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Sara Alexanian, MDBoston, MA 021181609834837
- Beth Cohen, M.D.Boston, MA 021181457385122
- Susana Ebner, M.D.Boston, MA 021181053330332
- Alan Farwell, M.D.Boston, MA 021181699758151
- Michael Holick, M.D.Boston, MA 021181346226206
- Philip Knapp, MDBoston, MA 021181407819444
- Stephanie Lee, M.D., PH.D.Boston, MA 021181851378665
- Jennifer Lee, M.D.Boston, MA 021181457398653
Common questions
What is Catherine Ann Sullivan, M.D.'s NPI number?
Catherine Ann Sullivan, M.D.'s National Provider Identifier (NPI) is 1598031403, issued on Mar 25, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Catherine Ann Sullivan, M.D. located?
The NPPES record lists a practice address at 732 Harrison Ave, Boston, MA, 02118. Phone: (617) 638-7470. Providers update this record themselves, so call before visiting.
How can I verify Catherine Ann Sullivan, M.D.'s license?
NPPES lists Massachusetts license number 269544, 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 Catherine Ann Sullivan, M.D. prescribe under Medicare Part D?
In 2024, Catherine Ann Sullivan, M.D. had 2,083 Medicare Part D claims for 225 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
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.