John J. Gullo, MD
Medical Oncology Physician · Brunswick, ME
John J. Gullo, MD is a medical oncology physician with a practice address in Brunswick, Maine, and NPI 1700865243, issued on Jan 12, 2006. Check the license (Maine MD21675, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- John J. Gullo
- Credential
- MD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License numbers
- MD21675 ME
137981-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 329 Maine St Ste E101, Brunswick, ME 04011
- Phone
- (207) 373-2266
- Enumerated
- Jan 12, 2006
- Record last updated
- Apr 8, 2025
- Fax
- (207) 910-4413
- Medicaid ID
- 00602671 NY
- Medicare enrollment
- Enrolled (PECOS I20171120002555); accepts Medicare assignment
- Medical or professional school
- State University Of Ny Upstate Medical University, 1972
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 22 in Maine → Look up another NPI →
Also registered at 329 Maine St Ste E101
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gretchen Gimbel, PA-CPhysician Assistant1417307489
- Hillary Glick, M.D.Hematology & Oncology Physician1801241989
- Renee Pinette, MDGynecologic Oncology Physician1558788489
- Allison Smith, M.D.Hematology & Oncology Physician1942695564
- Helen YuanHematology & Oncology Physician1376034157
Verify John J. Gullo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license MD21675Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% fewer Medicare Part D claims than the average medical oncology physician in 2024
680 Medicare Part D claims for 102 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 61 claims were for opioids.
Most prescribed
- Prednisone93 claims
- Prochlorperazine Maleate79 claims
- Dexamethasone46 claims
- Abiraterone Acetate43 claims
- Ondansetron Hcl37 claims
- Letrozole33 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 98.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $96.51
1 payment: food and beverage; the largest payer was Tempus AI, Inc. The 3,343 providers of this specialty with any payment received $11,773.47 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- MainehealthPortland, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John J. Gullo among 22 medical oncology physician records in Maine
John J. Gullo, MD is one of 22 medical oncology physician records with a practice address in Maine. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 27% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated1972 · median 1992 among the 12 with a school on file
- Record last updated2025 · 68% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in Maine
There are 22 medical oncology physician records in Maine.
All 22 in Maine → Every provider in Brunswick → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Thomas Keating, MDBrunswick, ME 040111609847524
- George Polkinghorn, MDBrunswick, ME 040111033182019
- Peter Westervelt, MDBrunswick, ME 040111043292246
- Peter Rubin, M.D.Biddeford, ME 040051912950411
- Eva Zaslavsky, M.D.Biddeford, ME 040051003910555
- Rebecca Eisenberg, M.D.Sanford, ME 040731518080639
- Daniel Hayes, MDScarborough, ME 040741245200153
- Susan Miesfeldt, MDScarborough, ME 040741043281959
Common questions
What is John J. Gullo, MD's NPI number?
John J. Gullo, MD's National Provider Identifier (NPI) is 1700865243, issued on Jan 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John J. Gullo, MD located?
The NPPES record lists a practice address at 329 Maine St Ste E101, Brunswick, ME, 04011. Phone: (207) 373-2266. Providers update this record themselves, so call before visiting.
How can I verify John J. Gullo, MD's license?
NPPES lists Maine license number MD21675, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John J. Gullo, MD prescribe under Medicare Part D?
In 2024, John J. Gullo, MD had 680 Medicare Part D claims for 102 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.
What is John J. Gullo, MD's MIPS final score?
The 2023 MIPS final score is 98.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.