Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Mark P Diehl, DO

Individual provider Internal Medicine Physician · NPI 1982667754

Dr. Mark P Diehl, DO is a Rheumatology in Gettysburg, Pennsylvania. Graduated from Philadelphia College of Osteopathic Medicine in 2002, 24 years ago. Practices with Wellspan Medical Group, a 2,342-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Pennsylvania.

Years since qualifying
24
Trained at
Philadelphia College of Osteopathic Medicine
Licensed in
PA
In the registry since
2006
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

40 V-Twin Dr Ste 205
Gettysburg, PA 17325-7878
Phone: (717) 339-2790
Fax: (717) 339-2771
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence OS012824 (PA)
Internal Medicine Physician Taxonomy 207R00000X · Licence OS012824 (PA)

Record details

NPI number1982667754
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 11, 2006
Last updated in NPPESJune 13, 2016
Mailing address1803 Mount Rose Ave, Suite B3, York, PA 17403-3051

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyRHEUMATOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolPHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2002 (24 years in practice)
Group practice Wellspan Medical Group — 2342 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations7 on file with Medicare

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