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

Individual provider Physician Assistant · NPI 1104872258

William S Nicholson, PA is a Physician Assistant in Cooperstown, New York. Qualified in 1991, 35 years ago. Practices with Mary Imogene Bassett Hospital, a 779-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
35
Licensed in
NY
In the registry since
2006
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

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Practice location Address checks out

1 Atwell Rd
Cooperstown, NY 13326-1301
Phone: (607) 547-3909
Fax: (607) 547-6325
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 006910 (NY)

Record details

NPI number1104872258
Entity typeIndividual (Type 1)
GenderMale
Credentials PA
Sole proprietorNo
NPI enumeratedMay 26, 2006
Last updated in NPPESJuly 13, 2026
Mailing addressPo Box 725, Cooperstown, NY 13326-0725

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Group practice Mary Imogene Bassett Hospital — 779 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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