1. Home
  2. Directory
  3. Rhode Island
  4. Warwick
  5. Internal Medicine
  6. NPI Profile

MARY ANNE GAFFNEY MD
NPI 1508166851
Internal Medicine - Nephrology in Warwick, RI

Active since November 02, 2010PECOS EnrolledAccepts Medicare Assignment
250 CENTERVILLE RD BLDG E, WARWICK, RI 02886(401) 490-3838(401) 490-3827 Get Directions Write a Review

NPPES record last updated: March 5, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 5, 2026, Feb 7, 2024, Jun 19, 2020 (3 updates tracked since 2020).

About Mary Anne Gaffney Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARY ANNE GAFFNEY MD (NPI 1508166851) is an individual nephrology provider in Warwick, Rhode Island, licensed in Rhode Island (MD12813) and active in the NPI registry since November 2010. She is enrolled in Medicare PECOS, is affiliated with Our Lady Of Fatima Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1508166851
Entity TypeIndividualFemale
Primary Taxonomy207RN0300X
Provider Legal NameMARY ANNE GAFFNEYCredential: MD
Location Address250 CENTERVILLE RD BLDG EWarwick, RI 02886-4400
Mailing Address15 La Salle SqProvidence, RI 02903-1814 · (401) 444-6779 · Fax (401) 444-6912
Phone(401) 490-3838
Fax(401) 490-3827
Sole ProprietorNo
Medical School CMSWarren Alpert Medical School Of Brown UniversityGraduated 2023
Enumeration DateNovember 2, 2010
Last NPPES UpdateMarch 5, 20263 updates tracked since enumeration
NPPES CertifiedMarch 5, 2026
✔ NPI 1508166851 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in RI · MD12813
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Also ListedInternal MedicineTaxonomy 207R00000X · License MD12813 (RI)
250 CENTERVILLE RD BLDG E, Warwick, RI 02886
Open in Google Maps ↗

Secondary Practice Locations 2

Location 1593 Eddy StProvidence, RI 02903-4923 · Phone (401) 444-4741 · Fax (401) 444-4445
Location 2375 Wampanoag TrlRiverside, RI 02915-2232 · Phone (401) 649-4060 · Fax (401) 649-4061

Other Identifiers 1

Medicaid1508166851RI

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mary Anne Gaffney Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5698132306
PECOS Enrollment IDI20230611000084
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
165 services61 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
87 services56 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
44 services42 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
31 services14 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
27 services27 patients
Telephone medical discussion with physician, 21-30 minutes 99443
This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.
19 services16 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Our Lady Of Fatima Hospital

Acute Care Hospitals · North Providence, RI
3/5 CMS rating
OwnershipProprietary
CMS Certification Number410005
Location200 High Service AvenueNorth Providence, RI 02904 · Providence County
Emergency services

Rhode Island Hospital

Acute Care Hospitals · Providence, RI
3/5 CMS rating
OwnershipTribal
CMS Certification Number410007
Location593 Eddy StreetProvidence, RI 02903 · Providence County
Emergency services

Kent County Memorial Hospital

Acute Care Hospitals · Warwick, RI
3/5 CMS rating
OwnershipProprietary
CMS Certification Number410009
Location455 Toll Gate RdWarwick, RI 02886 · Kent County
Emergency services Birthing friendly

The Miriam Hospital

Acute Care Hospitals · Providence, RI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number410012
Location164 Summit AvenueProvidence, RI 02906 · Providence County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02886 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$134.17 typical visit price
range $58.57 – $177.03
Typical copayment $33.54 (range $14.64 – $44.25)
Most-billed visit code 99204
Established Patient
$103.10 typical visit price
range $18.92 – $144.38
Typical copayment $25.77 (range $4.73 – $36.09)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

EDWARD MEDEIROS DO
Internal Medicine (Nephrology)
250 CENTERVILLE RD BLDG E
WARWICK, RI 02886
Kent County (401) 649-4070
MAROUN E AZAR M.D.
Internal Medicine (Nephrology)
250 CENTERVILLE RD BLDG E
WARWICK, RI 02886
Kent County (401) 490-3838
ALIGN INTEGRATIVE MEDICINE
Internal Medicine
250 CENTERVILLE RD BLDG E
WARWICK, RI 02886
Kent County (401) 921-5934

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mary Gaffney's NPI number?

The NPI number for Mary Gaffney is 1508166851. It was assigned to this individual provider in the NPPES registry on November 2, 2010.

Where is Mary Gaffney located?

Mary Gaffney practices at 250 Centerville Rd Bldg E, Warwick, RI 02886. The listed phone number is (401) 490-3838.

What is Mary Gaffney's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Mary Gaffney enrolled in Medicare?

Yes. Mary Gaffney is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Mary Gaffney affiliated with any hospitals?

According to CMS data, Mary Gaffney is affiliated with Our Lady Of Fatima Hospital, Rhode Island Hospital, Kent County Memorial Hospital and The Miriam Hospital.

When was this NPI record last updated?

The NPPES record for Mary Gaffney was last updated on March 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.