Bridget Lamonica Ostrem, M.D., PH.D.
Neurology Physician · Boston, MA
Bridget Lamonica Ostrem, M.D., PH.D. is a neurology physician with a practice address in Boston, Massachusetts, and NPI 1275994188, issued on Mar 19, 2016. Check the license (Massachusetts 277340, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Bridget Lamonica Ostrem
- Credential
- M.D., PH.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 277340 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fruit Street, Boston, MA 02114
- Phone
- (857) 644-6387
- Enumerated
- Mar 19, 2016
- Record last updated
- Jun 11, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20220729002600); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 2016
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 964 in Massachusetts → Look up another NPI →
Also registered at 55 Fruit Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- John Albin, MD, PHDInfectious Disease Physician1528472644
- Mary Amatangelo, NPAcute Care Nurse Practitioner1114191442
- Tian You An, M.D.Anesthesiology Physician1801145792
Verify Bridget Lamonica Ostrem in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 277340Check 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
- Ucsf Medical Group Business ServicesSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Bridget Lamonica Ostrem among 964 neurology physician records in Massachusetts
Bridget Lamonica Ostrem, M.D., PH.D. is one of 964 neurology physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 79% of them.
- NPI issued2016 · 79% of these records are older, 18% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2016 · median 2006 among the 612 with a school on file
- Record last updated2020 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
524 neurology physician records list a practice address in Boston
They are 524 of the 41,865 NPPES records with a practice address in Boston, and 964 neurology physician records in Massachusetts.
All 964 in Massachusetts → Every provider in Boston → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Cenk Ayata, MDBoston, MA 021141326038043
- Thomas Byrne, MDBoston, MA 021141346230075
- David Caplan, MD PHDBoston, MA 021141780674945
- Alice Flaherty, MD PHDBoston, MA 021141396735601
- John Growdon, MDBoston, MA 021141407846686
- Michael Irizarry, MDBoston, MA 021141790775237
- James Lehrich, MDBoston, MA 021141205826518
- Robert Levine, MDBoston, MA 021141154318459
Common questions
What is Bridget Lamonica Ostrem, M.D., PH.D.'s NPI number?
Bridget Lamonica Ostrem, M.D., PH.D.'s National Provider Identifier (NPI) is 1275994188, issued on Mar 19, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Bridget Lamonica Ostrem, M.D., PH.D. located?
The NPPES record lists a practice address at 55 Fruit Street, Boston, MA, 02114. Phone: (857) 644-6387. Providers update this record themselves, so call before visiting.
How can I verify Bridget Lamonica Ostrem, M.D., PH.D.'s license?
NPPES lists Massachusetts license number 277340, 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.
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.