Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

James Maynard Nickerson, M.D.

Medical Oncology Physician in Keene, NH · enumerated 2006.

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

National Provider Identifier

1811950843

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Registry record

Entity type Individual (Type 1)

Name James Maynard Nickerson

Credential M.D.

Sex Male

Practice address 590 Court St, Keene, NH, 03431

Phone (603) 354-5466

Fax (603) 354-5468

Enumeration date Apr 10, 2006

Last updated in NPPES Mar 29, 2012

Taxonomy & licenses

207RH0000X Hematology (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 9781 (NH) Secondary

207RH0000X Hematology (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 0420009373 (VT) Secondary

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License 9781 (NH) Primary

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License 0420009373 (VT) Secondary

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
30009784	Medicaid	NH	-

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 James Nickerson practice?

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

What is the NPI number for James Nickerson?

The National Provider Identifier (NPI) for James Nickerson is 1811950843, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-03-29.