Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark P Diehl, DO

Rheumatology Physician in Gettysburg, PA · enumerated 2006.

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

National Provider Identifier

1982667754

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark P Diehl

Credential DO

Sex Male

Practice address 40 V-Twin Dr, Suite 205, Gettysburg, PA, 17325

Phone (717) 339-2790

Fax (717) 339-2771

Enumeration date Apr 11, 2006

Last updated in NPPES Jun 13, 2016

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License OS012824 (PA) Secondary

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License OS012824 (PA) 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
20077605	Other	PA	AMERIHEALTH MERCY-WMG
80602	Other	PA	GEISINGER HEALTH PLAN
101308844	Medicaid	PA	-
1548009	Other	PA	GATEWAY-WMG
1744992	Other	PA	HIGHMARK BLUE SHIELD
932335	Other	MD	CAREFIRST MD BCBS
241340	Other	PA	UNISON-WMG
7335757	Other	PA	AETNA
50078161	Other	PA	CAPITAL BLUE CROSS-WMG
210561	Other	PA	JOHNS HOPKINS

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 Mark Diehl's NPI record?

Cross-check NPI 1982667754 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1982667754 active?

Yes, as of the latest NPPES snapshot, NPI 1982667754 is active (record last updated 2016-06-13).

Other providers at this practice address

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Segun Dawodu Pain Medicine (Physical Medicine & Rehabilitation) Physician · Gettysburg, PA NPI 1003800053 Shubha Acharya Internal Medicine Physician · Gettysburg, PA NPI 1407847809 Angelo Fiordimondo Clinical Psychologist · Gettysburg, PA NPI 1457335192 Judith Williams Family Nurse Practitioner · Gettysburg, PA NPI 1154393460 Marijka Grey Internal Medicine Physician · Gettysburg, PA NPI 1083666309 Boriana Kamenova Hematology & Oncology Physician · Gettysburg, PA NPI 1003869108 Kayode Lawrence Nephrology Physician · Gettysburg, PA NPI 1689617177 Julie Staub Clinical Social Worker · Gettysburg, PA NPI 1710922760

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-06-13.