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

Dr. Andrea Gail Isaacs, MD

Individual provider Internal Medicine Physician · NPI 1457491532

Dr. Andrea Gail Isaacs, MD practises Internal Medicine in Wallingford, Connecticut. Graduated from University of Pittsburgh School of Medicine in 1997, 29 years ago. Practices with Trinity Health of New England Provider Network Organization Inc, a 635-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Connecticut and New York.

Years since qualifying
29
Trained at
University of Pittsburgh School of Medicine
Licensed in
CT, NY
In the registry since
2007
Specialties on file
4
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

50 Gaylord Farm Rd
Wallingford, CT 06492-2899
Phone: (203) 284-2800
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (1)

  • Mts 490 Blue Hills Ave, Hartford, CT 06112 — (860) 714-2647

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 74943 (CT)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 212109 (NY)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 212109 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 212109 (NY)

Record details

NPI number1457491532
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 7, 2007
Last updated in NPPESSeptember 3, 2025
Certification dateSeptember 3, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF PITTSBURGH SCHOOL OF MEDICINE
Graduated 1997 (29 years in practice)
Group practice Trinity Health Of New England Provider Network Organization Inc — 635 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients22
Services billed 38 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Affiliated with 1 long-term care hospital, which CMS identifies by certification number only.

Colleagues at Trinity Health of New England Provider Network Organization Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 635 clinicians in the practice; 12 are shown here.

Other providers in Wallingford