Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Boston Mfm, LLC

Q: What is the NPI number for Boston Mfm, LLC?

The NPI for Boston Mfm, LLC is 1881902492, a Type 2 (organization) record in the CMS NPPES registry.

Maternal & Fetal Medicine Physician in Brookline, MA · enumerated 2010 · authorized official Benjamin Hamar, Physician.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1881902492

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Registry record

Entity type Organization (Type 2)

Legal business name Boston Mfm, LLC

Practice address 1 Brookline Pl, Brookline, MA, 02445

Phone (617) 264-0364

Fax (617) 264-0365

Enumeration date Sep 16, 2010

Last updated in NPPES Feb 3, 2014

Taxonomy & classification

207VM0101X Maternal & Fetal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Benjamin Hamar

Title Physician

Phone (617) 823-4191

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Boston Mfm, LLC?

The NPI for Boston Mfm, LLC is 1881902492, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Boston Mfm, LLC?

NPPES lists Benjamin Hamar (Physician) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-02-03.