NPPES file of Aug 9, 2026

Mary Anne Fenton, M.D.

Hematology & Oncology Physician · Providence, RI

Mary Anne Fenton, M.D. is a hematology & oncology physician with a practice address in Providence, Rhode Island, and NPI 1881606622, issued on Aug 12, 2006. Check the license (Rhode Island MD10307, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1881606622
Name
Mary Anne Fenton
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
MD10307 RI
Self-reported in NPPES; status is on the state search
Practice location
593 Eddy St, Providence, RI 02903
Phone
(401) 444-5391
Enumerated
Aug 12, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(401) 444-8918
Medicaid ID
9021217 RI
Medicare enrollment
Enrolled (PECOS I20040614000232); accepts Medicare assignment
Medical or professional school
University Of Connecticut School Of Medicine, 1989
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

8 nearest hematology & oncology physician records → All 88 in Rhode Island → Look up another NPI →

Also registered at 593 Eddy St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Farah AbazaStudent in an Organized Health Care Education/Training Program1598437477
  2. Nilofar Abdul ShukurPhysician Assistant1336010529
  3. Hael Abdulrazeq, MDNeurological Surgery Physician1659934289
  4. James Abernathy, MDAnesthesiology Physician1942257217
  5. Karen Abi Chebl, MDStudent in an Organized Health Care Education/Training Program1255179552
  6. Georges Abi Roustom, MDAnesthesiology Physician1548871908

Verify Mary Anne Fenton in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
    Search for license MD10307    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Rhode Island license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

3% more Medicare Part D claims than the average hematology & oncology physician in 2024

904 Medicare Part D claims for 209 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.

  1. Mary Anne Fenton904
  2. Specialty average877

Most prescribed

  1. Anastrozole459 claims
  2. Letrozole102 claims
  3. Ibrance61 claims
  4. Exemestane40 claims
  5. Ondansetron Hcl34 claims
  6. Tamoxifen Citrate34 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.

One hospital affiliation

  1. Rhode Island HospitalEast Greenwich, RI · Acute Care Hospitals4 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Mary Anne Fenton among 88 hematology & oncology physician records in Rhode Island

Mary Anne Fenton, M.D. is one of 88 hematology & oncology physician records with a practice address in Rhode Island. 85% 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 15% of them.

  • NPI issued2006 · 15% of these records are older, 53% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated1989 · median 2002 among the 64 with a school on file
  • Record last updated2007 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Rhode Island

There are 88 hematology & oncology physician records in Rhode Island.

All 88 in Rhode Island → Every provider in Providence → Hematology & Oncology Physician nationwide →

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Ariel Birnbaum, M.D.Providence, RI 029031942212790
  2. James Butera, M.D.Providence, RI 029031790797538
  3. Maria Constantinou, MDProvidence, RI 029031407999444
  4. Wafik El Deiry, MDProvidence, RI 029031275575714
  5. Katherine Faricy-Anderson, MD MPHProvidence, RI 029031194940700
  6. Humera Khurshid, MDProvidence, RI 029031013991926
  7. Adam Olszewski, M.D.Providence, RI 029031467436915
  8. Matthew Quesenberry, M.D.Providence, RI 029031194941419

Common questions

What is Mary Anne Fenton, M.D.'s NPI number?

Mary Anne Fenton, M.D.'s National Provider Identifier (NPI) is 1881606622, issued on Aug 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mary Anne Fenton, M.D. located?

The NPPES record lists a practice address at 593 Eddy St, Providence, RI, 02903. Phone: (401) 444-5391. Providers update this record themselves, so call before visiting.

How can I verify Mary Anne Fenton, M.D.'s license?

NPPES lists Rhode Island license number MD10307, as entered by the provider. Search the Rhode Island Board of Medical Licensure and Discipline at https://healthri.mylicense.com/Verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mary Anne Fenton, M.D. prescribe under Medicare Part D?

In 2024, Mary Anne Fenton, M.D. had 904 Medicare Part D claims for 209 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.