NPPES file of Aug 9, 2026

Brian P. Sullivan, MD

Obstetrics & Gynecology Physician · Hanover, MA

Brian P. Sullivan, MD is an obstetrics & gynecology physician with a practice address in Hanover, Massachusetts, and NPI 1699750265, issued on Dec 7, 2005. Check the license (Massachusetts 74990, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1699750265
Name
Brian P. Sullivan
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
74990 MA
Self-reported in NPPES; status is on the state search
Practice location
135 Webster St, Hanover, MA 02339
Phone
(781) 878-7020
Enumerated
Dec 7, 2005
Record last updated
Apr 24, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(781) 871-3590
Medicaid ID
3183238 MA
Medicare enrollment
Enrolled (PECOS I20050420001250); accepts Medicare assignment
Medical or professional school
University Of Massachusetts Medical School, 1988
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 135 Webster St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Erica AlbertiClinical Social Worker1770069056
  2. Amy Baron, CNMAdvanced Practice Midwife1346223617
  3. Erica Bradley, LICSWClinical Social Worker1720629132
  4. Candita Carlini, MSWSocial Worker1578141016
  5. Julie Clancy, BAMental Health Counselor1023457660
  6. Susan Colcher, PH.D.Psychologist1578642351

Verify Brian P. Sullivan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 74990
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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22% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

128 Medicare Part D claims for 62 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.

  1. Brian Sullivan128
  2. Specialty average165

Most prescribed

  1. Estradiol18 claims
  2. Misoprostol16 claims
  3. Clobetasol Propionate13 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

  1. Harbor Medical Associates IncPembroke, MA
  2. Mass General Brigham Medical Group Suburban Massachusetts IncPembroke, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Brian P. Sullivan among 1,127 obstetrics & gynecology physician records in Massachusetts

Brian P. Sullivan, MD is one of 1,127 obstetrics & gynecology physician records with a practice address in Massachusetts. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 84% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated1988 · median 2004 among the 715 with a school on file
  • Record last updated2009 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

3 obstetrics & gynecology physician records list a practice address in Hanover

They are 3 of the 276 NPPES records with a practice address in Hanover, and 1,127 obstetrics & gynecology physician records in Massachusetts.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Paul KeoughHanover, MA 023391366426348
  2. Cindy Kobelin, MDHanover, MA 023391740277524
  3. Russell Atkin, MDDuxbury, MA 023321871729178
  4. Scott Dreiker, M.D.Middleboro, MA 023461811998727
  5. Aasia Romano, M.D.Middleboro, MA 023461225279128
  6. Beverley Savage, MDDuxbury, MA 023321396781464
  7. Kristin Ratliff, M.D.Abington, MA 023511326010877
  8. Lauren Brown, MDNorth Easton, MA 023561730163262

Common questions

What is Brian P. Sullivan, MD's NPI number?

Brian P. Sullivan, MD's National Provider Identifier (NPI) is 1699750265, issued on Dec 7, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Brian P. Sullivan, MD located?

The NPPES record lists a practice address at 135 Webster St, Hanover, MA, 02339. Phone: (781) 878-7020. Providers update this record themselves, so call before visiting.

How can I verify Brian P. Sullivan, MD's license?

NPPES lists Massachusetts license number 74990, 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 Brian P. Sullivan, MD prescribe under Medicare Part D?

In 2024, Brian P. Sullivan, MD had 128 Medicare Part D claims for 62 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.