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

John J Gullo, MD

Individual provider Internal Medicine Physician · NPI 1700865243

John J Gullo, MD practises Medical Oncology in Brunswick, Maine. Graduated from State University of Ny Upstate Medical University in 1972, 54 years ago. Practices with Mainehealth, a 2,615-clinician group, works from 5 locations, accepts Medicare assignment and offers telehealth. Licensed in Maine and New York.

Years since qualifying
54
Trained at
State University of Ny Upstate Medical University
Licensed in
ME, NY
In the registry since
2006
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

329 Maine St Ste E101
Brunswick, ME 04011-3310
Phone: (207) 373-2266
Fax: (207) 910-4413
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 116 Northport Ave Ste 112, Belfast, ME 04915-6096 — (207) 505-4163
  • 159 Main St, Norway, ME 04268-5638 — (207) 743-2945
  • 265 Western Ave Ste 2, South Portland, ME 04106-2458 — (207) 661-0200
  • 5008 Brittonfield Pkwy, East Syracuse, NY 13057-9248 — (315) 472-7504

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence MD21675 (ME)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD21675 (ME)
Hematology (Internal Medicine) Physician Taxonomy 207RH0000X · Licence MD21675 (ME)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence 137981-1 (NY)

Record details

NPI number1700865243
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 12, 2006
Last updated in NPPESApril 8, 2025
Certification dateApril 8, 2025

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolSTATE UNIVERSITY OF NY UPSTATE MEDICAL UNIVERSITY
Graduated 1972 (54 years in practice)
Group practice Mainehealth — 2615 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
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 patients122
Services billed 351 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. Those with a page here are linked.

  • Lincolnhealth Hospital · Damariscotta, ME · listed as Lincolnhealth Coves Edge
  • Mainehealth Maine Medical Center Hospital · Portland, ME · listed as Maine Medical Center
  • Mainehealth Mid Coast Hospital Hospital · Brunswick, ME
  • Mainehealth Stephens Hospital Hospital · Norway, ME
  • Chans Home Health & Hospice Hospice · Brunswick, ME

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 Brunswick