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

Dr. Gerard Anthony Baltazar, DO

Individual provider Surgical Critical Care Physician · NPI 1255661211

Dr. Gerard Anthony Baltazar, DO is a General Surgery in Greenwich, Connecticut. Qualified in 2007, 19 years ago. Practices with New York University, a 5,884-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
19
Licensed in
NY
In the registry since
2010
Specialties on file
4
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

5 Perryridge Rd
Greenwich, CT 06830-4608
Phone: (203) 863-3000
Show map & directions

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

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 255827 (NY)
Surgical Critical Care Physician Taxonomy 2086S0102X · Licence 255827 (NY)
General Practice Physician Taxonomy 208D00000X · Licence 255827 (NY)
Trauma Surgery Physician Taxonomy 2086S0127X · Licence 255827 (NY)

Record details

NPI number1255661211
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJanuary 13, 2010
Last updated in NPPESJuly 4, 2026
Certification dateJuly 4, 2026

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolOTHER
Graduated 2007 (19 years in practice)
Group practice New York University — 5884 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare