Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Christine D. Baker, MD

Internal Medicine Physician in Northampton, MA · enumerated 2006.

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

National Provider Identifier

1518946359

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Registry record

Entity type Individual (Type 1)

Name Christine D. Baker

Credential MD

Sex Female

Practice address 190 Nonotuck St, Northampton, MA, 01062

Phone (413) 584-9511

Fax (413) 584-4218

Enumeration date Jan 11, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 81200 (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
2492052	Other	MA	AETNA
J16216	Other	MA	BCBS MA
081200	Other	MA	TUFTS
075122	Other	MA	CONNECTICARE
101471	Other	MA	CIGNA
3143040	Medicaid	MA	-
10402	Other	MA	HEALTH NEW ENGLAND
69916	Other	MA	HARVARD PILGRIM

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Christine Baker?

Christine Baker is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.