Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Andrei Zaslavsky, DO

Individual provider Internal Medicine Physician · NPI 1922365683

Dr. Andrei Zaslavsky, DO is a Hospitalist in Portland, Maine. Qualified in 2009, 17 years ago. Practices with Mainehealth, a 2,615-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Maine and New York.

Years since qualifying
17
Licensed in
ME, NY
In the registry since
2012
Specialties on file
2
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 →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

335 Brighton Ave
Portland, ME 04102
Phone: (207) 775-4000
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 (2)

  • 240 Meeting House Ln, Southampton, NY 11968-5009 — (631) 726-8200
  • 240 Meeting House Ln, Southampton, NY 11968-5009 — (631) 726-8200

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence DO2587 (ME)
Hospitalist Physician Taxonomy 208M00000X · Licence 265691 (NY)

Record details

NPI number1922365683
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedApril 19, 2012
Last updated in NPPESApril 27, 2026
Certification dateApril 27, 2026

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2009 (17 years in practice)
Group practice Mainehealth — 2615 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 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 patients649
Services billed 2,861 a service is one billed item, such as a visit, a test or a procedure
Average patient age79

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. Those with a page here are linked.

Colleagues at Mainehealth

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2615 clinicians in the practice; 12 are shown here.

Other providers in Portland