Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Christopher Allen May, MD

Individual provider Anesthesiology Physician · NPI 1477554004

Christopher Allen May, MD practises Anesthesiology in York, Pennsylvania. Graduated from Georgetown University School of Medicine in 1994, 32 years ago. Practices with Oss Orthopaedic Hospital LLC, a 123-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
32
Trained at
Georgetown University School of Medicine
Licensed in
PA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1861 Powder Mill Rd
York, PA 17402-4723
Phone: (717) 718-2000
Fax: (717) 718-3460
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1855 Powder Mill Road, York, PA 17402-4723 — (717) 747-8306

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence MD474082 (PA)

Record details

NPI number1477554004
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 4, 2005
Last updated in NPPESOctober 7, 2025
Certification dateOctober 7, 2025

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 1994 (32 years in practice)
Group practice Oss Orthopaedic Hospital Llc — 123 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients153
Services billed 184 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Oss Orthopaedic Hospital LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 123 clinicians in the practice; 12 are shown here.

Other providers in York