Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Thomas Richard Ellenberger Jr., M.D.

Internal Medicine Physician in Johnstown, PA · enumerated 2006.

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

National Provider Identifier

1508818410

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Registry record

Entity type Individual (Type 1)

Name Dr. Thomas Richard Ellenberger Jr.

Credential M.D.

Sex Male

Practice address 321 Main St, Suite 5d, Johnstown, PA, 15901

Phone (814) 535-7885

Fax (814) 535-7079

Enumeration date May 17, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD018414E (PA) 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
0006378450001	Medicaid	PA	-
027796	Other	PA	HIGHMARK
0743755	Other	-	UMWA
11978	Other	PA	UPMC HEALTH PLAN

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 Thomas Ellenberger?

Thomas Ellenberger is registered in NPPES with the primary taxonomy of Internal Medicine 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 2007-07-08.