Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Melissa Ann Davidson, M.D.

Internal Medicine Physician in Kalamazoo, MI · enumerated 2006.

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

National Provider Identifier

1740259332

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Registry record

Entity type Individual (Type 1)

Name Dr. Melissa Ann Davidson

Credential M.D.

Sex Female

Practice address 4613 W Main St, Kalamazoo, MI, 49006

Phone (269) 488-8672

Fax (269) 488-8673

Enumeration date Mar 16, 2006

Last updated in NPPES Nov 27, 2023

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 4301056179 (MI) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 4301056179 (MI) 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
156671	Other	-	GREAT LAKES HLTH PLN
5551271	Other	-	AETNA PIN
487647710	Medicaid	MI	-
1103904921	Other	-	BCBS
110C913020	Other	-	BCBS GRP PIN
4195269	Medicaid	MI	-

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 specialty is Melissa Davidson?

Melissa Davidson 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.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-27.