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

Dr. Patrick Michael Casey, DO, MS

Individual provider Internal Medicine Physician · NPI 1114603248

Dr. Patrick Michael Casey, DO, MS is a Family Practice in Lancaster, Pennsylvania. Qualified in 2023, 3 years ago. Works from 2 locations. Licensed in Pennsylvania.

Years since qualifying
3
Licensed in
PA
In the registry since
2023
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.
MS — Master of Science
A graduate science degree.

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Practice location Address checks out

555 N Duke St
Lancaster, PA 17602-2250
Phone: (717) 544-8144
Fax: (717) 544-8140
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 5501 Old York Rd Ste 1, Philadelphia, PA 19141-3098 — (484) 622-1000

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence OS025899 (PA)

Record details

NPI number1114603248
Entity typeIndividual (Type 1)
GenderMale
Credentials DO , MS
Sole proprietorNo
NPI enumeratedJune 23, 2023
Last updated in NPPESJuly 13, 2026
Certification dateJuly 13, 2026
Mailing address555 N Duke St, Lancaster, PA 17602-2250

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

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