Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Maria A Yialamas, MD

Endocrinology, Diabetes & Metabolism Physician in Boston, MA · enumerated 2005.

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

National Provider Identifier

1679563316

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Registry record

Entity type Individual (Type 1)

Name Maria A Yialamas

Credential MD

Sex Female

Practice address 70 Francis St, Boston, MA, 02115

Phone (857) 307-4100

Fax (857) 307-1366

Enumeration date Oct 25, 2005

Last updated in NPPES Jun 15, 2012

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 205435 (MA) Secondary

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License 205435 (MA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
205435	Other	MA	TUFTS HEALTH PLAN
2009901	Medicaid	MA	-
J26233	Other	MA	BCBS MA

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.

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Frequently asked questions

How do I verify Maria Yialamas's NPI record?

Cross-check NPI 1679563316 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1679563316 active?

Yes, as of the latest NPPES snapshot, NPI 1679563316 is active (record last updated 2012-06-15).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-06-15.