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

William K Oh, MD

Individual provider Medical Oncology Physician · NPI 1225095581

William K Oh, MD is a Medical Oncology in Greenwich, Connecticut. Graduated from New York University School of Medicine in 1992, 34 years ago. Practices with Select PT, OT and SLP Rehabilitation Ny, PLLC, a 272-clinician group, works from 3 locations and offers telehealth. Licensed in Connecticut and New York.

Years since qualifying
34
Trained at
New York University School of Medicine
Licensed in
CT, NY
In the registry since
2006
Specialties on file
2
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

77 Lafayette Pl
Greenwich, CT 06830-5437
Phone: (203) 863-3700
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 5 Perryridge Rd, Greenwich, CT 06830-4697 — (203) 863-3000
  • 35 W Park Ave, New Haven, CT 06511-4043 — (203) 688-4242

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence 79833 (CT)
Medical Oncology Physician Taxonomy 207RX0202X · Licence 255056 (NY)

Record details

NPI number1225095581
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 28, 2006
Last updated in NPPESDecember 11, 2024
Certification dateDecember 11, 2024
Mailing address333 Cedar Street, Po Box 208028, New Haven, CT 06520

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Medical schoolNEW YORK UNIVERSITY SCHOOL OF MEDICINE
Graduated 1992 (34 years in practice)
Group practice Select Pt, Ot And Slp Rehabilitation Ny, Pllc — 272 clinicians
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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