Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. James Martin Chamberlain, M.D.

Family Medicine Physician in Queenstown, MD · enumerated 2005.

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

National Provider Identifier

1437150042

Verified

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Registry record

Entity type Individual (Type 1)

Name Dr. James Martin Chamberlain

Credential M.D.

Sex Male

Practice address 125 Shoreway Dr, Suite 120, Queenstown, MD, 21658

Phone (410) 827-4001

Fax (410) 827-4333

Enumeration date Aug 4, 2005

Last updated in NPPES Dec 5, 2011

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License D0037064 (MD) 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
100059	Other	MD	AETNA CAPITATED BN
100064	Other	MD	AETNA CAPITATED KI
351089-12	Other	MD	CAREFIRST MD RENDERING KI
835422	Other	MD	MAMSI PRIMARY CARE BN
1406209	Other	MD	CIGNA PIN
013200	Other	MD	JHHC PROVIDER NUMBER
2114468	Other	MD	MAMSI SPECIALIST KI
4567843	Other	MD	AETNA FEE FOR SERVICE
P11963	Other	MD	CAREFIRST MPOS
351089-01	Other	MD	CAREFIRST MD RENDERING BN
526171600	Medicaid	MD	-
7605-0042	Other	MD	CAREFIRST BLUECHOICE
80083145	Other	MD	RR MEDICARE BN
235422	Other	MD	MAMSI SPECIALIST BN
80083132	Other	MD	RR MEDICARE KI
8114468	Other	MD	MAMSI PRIMARY CARE

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 James Chamberlain?

The National Provider Identifier (NPI) for James Chamberlain is 1437150042, a Type 1 (individual) record in the CMS NPPES registry.

Where does James Chamberlain practice?

The practice location on file with NPPES is in Queenstown, MD. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-12-05.