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

Dr. Ian Alexander Mellis, MD, PHD

Individual provider Clinical Pathology Physician · NPI 1366022915

Dr. Ian Alexander Mellis, MD, PHD is a Pathology in New York, New York. Qualified in 2021, 5 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
5
Licensed in
NY
In the registry since
2021
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

622 W 168th St
New York, NY 10032-3720
Phone: (212) 305-5697
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Pathology Physician (primary) Taxonomy 207ZC0006X · Licence 327229 (NY)
Blood Banking & Transfusion Medicine Physician Taxonomy 207ZB0001X · Licence 327229 (NY)
Chemical Pathology Physician Taxonomy 207ZP0104X · Licence 327229 (NY)
Clinical Pathology/Laboratory Medicine Physician Taxonomy 207ZP0105X · Licence 327229 (NY)

Record details

NPI number1366022915
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedApril 8, 2021
Last updated in NPPESOctober 24, 2025
Certification dateOctober 24, 2025

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Medical schoolOTHER
Graduated 2021 (5 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

Other providers in New York