Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Charles J Seigel, M.D.

Obstetrics & Gynecology Physician in Peterborough, NH · enumerated 2005.

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

National Provider Identifier

1649260720

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Registry record

Entity type Individual (Type 1)

Name Dr. Charles J Seigel

Credential M.D.

Sex Male

Practice address 454 Old Street Rd, Suite 302, Peterborough, NH, 03458

Phone (603) 924-9444

Fax (603) 924-8709

Enumeration date Oct 28, 2005

Last updated in NPPES Dec 3, 2012

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 4992 (NH) 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
0105615Y0NH01	Other	NH	BLUE CROSS BLUE SHIELD
8432351	Other	NH	CIGNA
NH0007353	Other	NH	CHAMPUS
B57966	Other	NH	HARVARD
0740462	Other	NH	UNITED HEALTH CARE
80009818	Medicaid	NH	-
2072142	Other	NH	AETNA
783025	Other	NH	MVP

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

What is the NPI number for Charles Seigel?

The National Provider Identifier (NPI) for Charles Seigel is 1649260720, a Type 1 (individual) record in the CMS NPPES registry.

Where does Charles Seigel practice?

The practice location on file with NPPES is in Peterborough, NH. 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 2012-12-03.