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

Dr. Kathryn A. Colby, MD

Individual provider Cornea and External Diseases Specialist Physician · NPI 1245221282

Dr. Kathryn A. Colby, MD is an Ophthalmology in New York, New York. Qualified in 1992, 34 years ago. Practices with New York University, a 5,884-clinician group and accepts Medicare assignment. Licensed in Illinois and Massachusetts.

Years since qualifying
34
Licensed in
IL, MA
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

222 E 41st St
New York, NY 10017-6739
Phone: (212) 263-2574
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

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence 150411 (MA)
Cornea and External Diseases Specialist Physician Taxonomy 207WX0120X · Licence 036.138315 (IL)

Record details

NPI number1245221282
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 31, 2005
Last updated in NPPESMarch 11, 2021
Certification dateMarch 11, 2021

Medicare enrollment

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

Medicare specialtyOPHTHALMOLOGY
Medical schoolOTHER
Graduated 1992 (34 years in practice)
Group practice New York University — 5884 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in New York