NPPES file of Aug 9, 2026

Brian P. Sullivan, M.D.

Family Medicine Physician · Lancaster, PA

Brian P. Sullivan, M.D. is a family medicine physician with a practice address in Lancaster, Pennsylvania, and NPI 1164419131, issued on Oct 4, 2005. Check the license (Pennsylvania MD423238, as entered in NPPES) on the Pennsylvania Department of State (PALS); 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
1164419131
Name
Brian P. Sullivan
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
MD423238 PA
Self-reported in NPPES; status is on the state search
Practice location
101 Abbeyville RD, Lancaster, PA 17603
Phone
(717) 291-5991
Enumerated
Oct 4, 2005
Record last updated
Aug 19, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(717) 291-5806
Medicaid ID
1010754010001 PA
Medicare enrollment
Enrolled (PECOS I20040715001114); accepts Medicare assignment
Medical or professional school
Temple University School Of Medicine, 2001
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 101 Abbeyville RD

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

  1. William Bakken, M.D.Family Medicine Physician1447247135
  2. Kelley Castillon, FNPFamily Nurse Practitioner1164064721
  3. Denise Cope, M.D.Family Medicine Physician1679639082
  4. Gary Gehman, M.D.Family Medicine Physician1326035015
  5. Lauren Myer, CRNPFamily Nurse Practitioner1174928642
  6. Elizabeth Naff, LCSWClinical Social Worker1841773751

Verify Brian P. Sullivan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD423238
    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 Pennsylvania 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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2.5 times the Medicare Part D claims of the average family medicine physician in 2024

8,845 Medicare Part D claims for 782 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 483 claims were for opioids.

  1. Brian Sullivan8,845
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium623 claims
  2. Amlodipine Besylate296 claims
  3. Levothyroxine Sodium257 claims
  4. Gabapentin253 claims
  5. Omeprazole233 claims
  6. Metoprolol Succinate175 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 one group practice

  1. Lancaster General Medical GroupParkesburg, PA

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

Brian P. Sullivan among 7,483 family medicine physician records in Pennsylvania

Brian P. Sullivan, M.D. is one of 7,483 family medicine physician records with a practice address in Pennsylvania. 79% 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, 88% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2001 · median 2005 among the 4,529 with a school on file
  • Record last updated2007 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

213 family medicine physician records list a practice address in Lancaster

They are 213 of the 5,378 NPPES records with a practice address in Lancaster, and 7,483 family medicine physician records in Pennsylvania.

The 8 family medicine physician records with the nearest ZIP codes

  1. William Bakken, M.D.Lancaster, PA 176031447247135
  2. Anne-Marie Derrico, MDLancaster, PA 176031982658050
  3. William Fife, MDLancaster, PA 176031124070933
  4. Gary Gehman, M.D.Lancaster, PA 176031326035015
  5. Althea Keener, MDLancaster, PA 176031205872330
  6. David Ling, M.D.Lancaster, PA 176031982697272
  7. Nunzio Mastropietro, M.D.Lancaster, PA 176031326048794
  8. Thomas Mextorf, D.O.Lancaster, PA 176031194703629

Common questions

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

Brian P. Sullivan, M.D.'s National Provider Identifier (NPI) is 1164419131, issued on Oct 4, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Brian P. Sullivan, M.D. located?

The NPPES record lists a practice address at 101 Abbeyville RD, Lancaster, PA, 17603. Phone: (717) 291-5991. Providers update this record themselves, so call before visiting.

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

NPPES lists Pennsylvania license number MD423238, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Brian P. Sullivan, M.D. prescribe under Medicare Part D?

In 2024, Brian P. Sullivan, M.D. had 8,845 Medicare Part D claims for 782 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.