NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ai-Ris Yonekura Collier, M.D.

Maternal & Fetal Medicine Physician in Boston, MA · enumerated 2011.

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

National Provider Identifier

1750675351

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Ai-Ris Yonekura Collier
Credential M.D.
Sex Female
Practice address 330 Brookline Ave, Gryzmish 7th Floor, Boston, MA, 02215
Fax (617) 667-2231
Enumeration date Jun 1, 2011
Last updated in NPPES Jan 11, 2024

Taxonomy & licenses

207VX0000X Obstetrics Physician Allopathic & Osteopathic Physicians · License 263264 (MA) Secondary
207VM0101X Maternal & Fetal Medicine Physician Allopathic & Osteopathic Physicians · License 263264 (MA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

Where does Ai-Ris Collier practice?
The practice location on file with NPPES is in Boston, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Ai-Ris Collier?
The National Provider Identifier (NPI) for Ai-Ris Collier is 1750675351, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-11.