Mary Anne Gaffney, MD
Nephrology Physician · Warwick, RI
Mary Anne Gaffney, MD is a nephrology physician with a practice address in Warwick, Rhode Island, and NPI 1508166851, issued on Nov 2, 2010. Check the license (Rhode Island MD12813, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Mary Anne Gaffney
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- MD12813 RI
Self-reported in NPPES; status is on the state search - Practice location
- 250 Centerville RD Bldg E, Warwick, RI 02886
- Phone
- (401) 490-3838
- Enumerated
- Nov 2, 2010
- Record last updated
- Mar 5, 2026
- Fax
- (401) 490-3827
- Medicaid ID
- 1508166851 RI
- Medicare enrollment
- Enrolled (PECOS I20230611000084); accepts Medicare assignment
- Medical or professional school
- Warren Alpert Medical School Of Brown University, 2023
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 51 in Rhode Island → Look up another NPI →
Also registered at 250 Centerville RD Bldg E
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maroun Azar, M.D.Nephrology Physician1790975191
- Edward Medeiros, DONephrology Physician1144616715
Verify Mary Anne Gaffney in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
Search for license MD12813Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average nephrology physician in 2024
414 Medicare Part D claims for 99 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Lisinopril73 claims
- Torsemide50 claims
- Jardiance42 claims
- Farxiga34 claims
- Amlodipine Besylate32 claims
- Furosemide28 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.
Industry payments in 2024: $39.11
1 payment: food and beverage; the largest payer was Travere Therapeutics, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 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 2 group practices
- Brown MedicineRiverside, RI
- Lifespan Physician Group IncWarwick, RI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Anne Gaffney among 51 nephrology physician records in Rhode Island
Mary Anne Gaffney, MD is one of 51 nephrology physician records with a practice address in Rhode Island. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 59% of them.
- NPI issued2010 · 59% of these records are older, 39% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2023 · median 2008 among the 31 with a school on file
- Record last updated2026 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Rhode Island
There are 51 nephrology physician records in Rhode Island.
All 51 in Rhode Island → Every provider in Warwick → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Maroun Azar, M.D.Warwick, RI 028861790975191
- Nelson Chu, MDWarwick, RI 028861710969027
- Edward Medeiros, DOWarwick, RI 028861144616715
- Mark Mancini, MDWesterly, RI 028911477579407
- Joseph Romanello, MDWesterly, RI 028911609889419
- Robert Serra, MDWesterly, RI 028911740394030
- Priya Patel, MDWakefield, RI 028791841818259
- Nathan Calabro-KailukaitisProvidence, RI 029031932544608
Common questions
What is Mary Anne Gaffney, MD's NPI number?
Mary Anne Gaffney, MD's National Provider Identifier (NPI) is 1508166851, issued on Nov 2, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Mary Anne Gaffney, MD located?
The NPPES record lists a practice address at 250 Centerville RD Bldg E, Warwick, RI, 02886. Phone: (401) 490-3838. Providers update this record themselves, so call before visiting.
How can I verify Mary Anne Gaffney, MD's license?
NPPES lists Rhode Island license number MD12813, 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 Gaffney, MD prescribe under Medicare Part D?
In 2024, Mary Anne Gaffney, MD had 414 Medicare Part D claims for 99 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.
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.