Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Reinhard Peter Bernhard Viehoff, MD

Geriatric Psychiatry Physician in Manchester, NH · enumerated 2005 · practices at Jwalant Vadalia MD PC.

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

National Provider Identifier

1558358218

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Registry record

Entity type Individual (Type 1)

Name Reinhard Peter Bernhard Viehoff

Credential MD

Sex Male

Practice address 138 Webster Street, Manchester, NH, 03104

Phone (603) 645-5977

Fax (603) 645-5980

Enumeration date Sep 28, 2005

Last updated in NPPES Jun 12, 2019

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 9825 (NH) Secondary

2084P0805X Geriatric Psychiatry Physician Allopathic & Osteopathic Physicians · License 9825 (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
30201864	Medicaid	NH	-
3071962	Medicaid	NH	-
0105055Y0NH01	Other	-	ANTHEM

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 specialty is Reinhard Viehoff?

Reinhard Viehoff is registered in NPPES with the primary taxonomy of Geriatric Psychiatry 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 2019-06-12.