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

Michael S Kirwin, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1548286164

Michael S Kirwin, MD is an Obstetrics/Gynecology in Freehold, New Jersey. Graduated from State University of New York Downstate Medical Center in 1991, 35 years ago. Works from 3 locations and accepts Medicare assignment. Licensed in New Jersey, Washington and Wisconsin.

Years since qualifying
35
Trained at
State University of New York Downstate Medical Center
Licensed in
NJ, WA, WI
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

501 Ironbridge Rd Ste 10
Freehold, NJ 07728
Phone: (732) 431-2999
Fax: (732) 431-2993
Show map & directions

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

Additional practice locations (2)

  • 433 E 8th St, Port Angeles, WA 98362-6219 — (360) 565-0999
  • 3400 E Racine St, Janesville, WI 53546-2344 — (608) 373-8000

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 62235 (NJ)
Obstetrics & Gynecology Physician Taxonomy 207V00000X · Licence 4865-320 (WI)
Obstetrics & Gynecology Physician Taxonomy 207V00000X · Licence MD70021880 (WA)

Record details

NPI number1548286164
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 15, 2006
Last updated in NPPESAugust 7, 2025
Certification dateAugust 7, 2025
Mailing addressPo Box 22581, New York, NY 10087-2581

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolSTATE UNIVERSITY OF NEW YORK DOWNSTATE MEDICAL CENTER
Graduated 1991 (35 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Freehold