Brian Patrick Regan, D.O.
Pediatric Gastroenterology Physician · Boston, MA
Brian Patrick Regan, D.O. is a pediatric gastroenterology physician with a practice address in Boston, Massachusetts, and NPI 1235279183, issued on Feb 8, 2007. Check the license on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Brian Patrick Regan
- Credential
- D.O.
- Primary taxonomy
- Pediatric Gastroenterology Physician 2080P0206X
- License number
- 226701 NY
Self-reported in NPPES; status is on the state search - Practice location
- 750 Washington St, Boston, MA 02111
- Phone
- (617) 636-3266
- Enumerated
- Feb 8, 2007
- Record last updated
- Apr 2, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20071119000072); accepts Medicare assignment
- Medical or professional school
- New York College Of Osteo Medicine Of New York Institute Of Technology, 2001
- Entity
- Type 1 · individual
8 nearest pediatric gastroenterology physician records → All 135 in Massachusetts → Look up another NPI →
Also registered at 750 Washington St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maureen Abbott, NPAdult Health Nurse Practitioner1457591638
- Paul Abourjaily, PHARMDPharmacotherapy Pharmacist1255337044
- Lori Abrahamian, M.D.Anesthesiology Physician1528012192
- Mary Ahern, PMHCNS-BCPsychiatric/Mental Health Clinical Nurse Specialist1619137742
- Ghada Al Mubarak, M.D.Surgery Physician1407034911
- Abeer Al-Naqbi, M.D.Obstetrics & Gynecology Physician1043426919
Verify Brian Patrick Regan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Children's Hospital Pediatric Associates, IncMilford, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brian Patrick Regan among 135 pediatric gastroenterology physician records in Massachusetts
Brian Patrick Regan, D.O. is one of 135 pediatric gastroenterology physician records with a practice address in Massachusetts. 56% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 35% of them.
- NPI issued2007 · 35% of these records are older, 56% newer
- In a Medicare fileYes · 56% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2001 · median 2004 among the 67 with a school on file
- Record last updated2010 · 68% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0206X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Gastroenterology Physician providers in Massachusetts
There are 135 pediatric gastroenterology physician records in Massachusetts.
All 135 in Massachusetts → Every provider in Boston → Pediatric Gastroenterology Physician nationwide →
The 8 pediatric gastroenterology physician records with the nearest ZIP codes
- Silvana Bonilla, M.D.Boston, MA 021111770749749
- Alejandro Flores Sandoval, MDBoston, MA 021111316950074
- Erin Mauney, MDBoston, MA 021111578067104
- Caitriona McGovern, M.D.Boston, MA 021111659733087
- Peter Ngo, MDBoston, MA 021111225028301
- Khoa Tran, M.D.Boston, MA 021111437335239
- Gary Fanjiang, MDBoston, MA 021141982694147
- Alison Hoppin, MDBoston, MA 021141124019195
Common questions
What is Brian Patrick Regan, D.O.'s NPI number?
Brian Patrick Regan, D.O.'s National Provider Identifier (NPI) is 1235279183, issued on Feb 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Brian Patrick Regan, D.O. located?
The NPPES record lists a practice address at 750 Washington St, Boston, MA, 02111. Phone: (617) 636-3266. Providers update this record themselves, so call before visiting.
How can I verify Brian Patrick Regan, D.O.'s license?
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.
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.