Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David Alan Tonnies, M.D.

Orthopaedic Surgery Physician in Hermitage, PA · enumerated 2005 · practices at Hermitage Orthopedics and Sports Medicine, P.C..

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

National Provider Identifier

1083618946

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Registry record

Entity type Individual (Type 1)

Name Dr. David Alan Tonnies

Credential M.D.

Sex Male

Practice address 1005 Campus Cir, Hermitage, PA, 16148

Phone (724) 346-2677

Fax (724) 346-2825

Enumeration date Jun 9, 2005

Last updated in NPPES Dec 23, 2014

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License MD054137L (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
0016988270002	Medicaid	PA	-
975979	Other	PA	HIGHMARK BC/BS

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

How do I verify David Tonnies's NPI record?

Cross-check NPI 1083618946 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1083618946 active?

Yes, as of the latest NPPES snapshot, NPI 1083618946 is active (record last updated 2014-12-23).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-12-23.