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

Lionel Williams Jr., MD

Individual provider Anesthesiology Physician · NPI 1285631994

Lionel Williams Jr., MD is an Anesthesiology in Poughkeepsie, New York. Graduated from State University of New York at Buffalo School of Medicine in 1988, 38 years ago. Practices with North American Partners in Anesthesia LLP, a 415-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
38
Trained at
State University of New York at Buffalo School of Medicine
Licensed in
NY
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

45 Reade Pl Anesthesia Dept
Poughkeepsie, NY 12601-3947
Phone: (845) 431-5629
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 180410 (NY)

Record details

NPI number1285631994
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 7, 2005
Last updated in NPPESNovember 4, 2009

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolSTATE UNIVERSITY OF NEW YORK AT BUFFALO SCHOOL OF MEDICINE
Graduated 1988 (38 years in practice)
Group practice North American Partners In Anesthesia Llp — 415 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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