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

William Constantine Turner, MD

Individual provider Internal Medicine Physician · NPI 1053422998

William Constantine Turner, MD is a Hospitalist in New York, New York. Graduated from Icahn School of Medicine at Mount Sinai in 1998, 28 years ago. Practices with Trustees of Columbia University in the City of New York, a 2,250-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
28
Trained at
Icahn School of Medicine at Mount Sinai
Licensed in
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

622 W 168 Street Ph 1-137 Columbia University Med Ctr
New York, NY 10032-3784
Phone: (212) 305-2995
Fax: (212) 305-6792
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 216020 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 216020 (NY)

Record details

NPI number1053422998
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 31, 2006
Last updated in NPPESMarch 25, 2024
Certification dateMarch 25, 2024

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
Graduated 1998 (28 years in practice)
Group practice Trustees Of Columbia University In The City Of New York — 2250 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients358
Services billed 777 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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 Trustees of Columbia University in the City of New York

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2250 clinicians in the practice; 12 are shown here.

Other providers in New York