Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Robert James Seiler, D.O.

Obstetrics & Gynecology Physician in Nashua, NH · enumerated 2006 · practices at Dartmouth-Hitchcock Clinic.

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

National Provider Identifier

1831159847

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Registry record

Entity type Individual (Type 1)

Name Dr. Robert James Seiler

Credential D.O.

Sex Male

Practice address 2300 Southwood Dr, Nashua, NH, 03063

Phone (603) 577-2560

Fax (603) 640-1228

Enumeration date Mar 24, 2006

Last updated in NPPES Jun 29, 2026

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 5101013921 (MI) Secondary

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 39785 (NH) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
0700523	Other	MI	PHP
160C311260	Other	MI	BCBSM COMM BLUE CHOICEBCN
1020335	Other	MI	MHP HAN
1831159847	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.

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Frequently asked questions

Is NPI 1831159847 active?

Yes, as of the latest NPPES snapshot, NPI 1831159847 is active (record last updated 2026-06-29).

How do I verify Robert Seiler's NPI record?

Cross-check NPI 1831159847 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-29.