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

William M. Unwin, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1801840608

William M. Unwin, MD is an Obstetrics/Gynecology in York, Pennsylvania. Qualified in 1975, 51 years ago. Practices with Wellspan Medical Group, a 2,342-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
51
Licensed in
PA
In the registry since
2006
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

1693 S Queen St
York, PA 17403-4609
Phone: (717) 845-1621
Fax: (717) 854-6939
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 450 S Washington St, Gettysburg, PA 17325-2500 — (717) 337-4487
  • 1001 S George St, York, PA 17403-3676 — (717) 851-2348
  • 1101 Edgar St, York, PA 17403-2862 — (717) 812-4602

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence MD037927E (PA)

Record details

NPI number1801840608
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 19, 2006
Last updated in NPPESMarch 13, 2025
Certification dateMarch 13, 2025
Mailing address601 Memory Ln, York, PA 17402-2231

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolOTHER
Graduated 1975 (51 years in practice)
Group practice Wellspan Medical Group — 2342 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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