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

Dr. John Warren Barnhill, MD

Individual provider Psychiatry Physician · NPI 1699813600

Dr. John Warren Barnhill, MD is a Psychiatry in New York, New York. Graduated from Baylor College of Medicine in 1985, 41 years ago. Practices with Weill Medical College of Cornell, a 2,031-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
41
Trained at
Baylor College of Medicine
Licensed in
NY
In the registry since
2007
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

525 E 68th St Box 181
New York, NY 10021-4870
Phone: (212) 746-3671
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 170116 (NY)

Record details

NPI number1699813600
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedFebruary 2, 2007
Last updated in NPPESFebruary 27, 2008

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolBAYLOR COLLEGE OF MEDICINE
Graduated 1985 (41 years in practice)
Group practice Weill Medical College Of Cornell — 2031 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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