Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Don S Tessmann, MD

Psychiatry Physician in Martinsville, VA · enumerated 2006.

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

National Provider Identifier

1417924184

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Registry record

Entity type Individual (Type 1)

Name Dr. Don S Tessmann

Credential MD

Sex Male

Practice address 24 Clay Street, Martinsville, VA, 24112

Phone (276) 632-7128

Fax (276) 632-0127

Enumeration date Mar 2, 2006

Last updated in NPPES Jun 22, 2009

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 0101043297 (VA) 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
O87530	Other	VA	SENTARA BEHAVIORAL HEALTH
004945085	Medicaid	VA	-
004945221	Medicaid	VA	-
240195	Other	VA	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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Don Tessmann's NPI record?

Cross-check NPI 1417924184 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1417924184 active?

Yes, as of the latest NPPES snapshot, NPI 1417924184 is active (record last updated 2009-06-22).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-06-22.