NPPES file of Aug 9, 2026

John Gormley Slattery, MD

Family Medicine Physician · East Greenwich, RI

John Gormley Slattery, MD is a family medicine physician with a practice address in East Greenwich, Rhode Island, and NPI 1033109236, issued on Oct 27, 2005. Check the license (Rhode Island RI8483, 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
1033109236
Name
John Gormley Slattery
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
RI8483 RI
Self-reported in NPPES; status is on the state search
Practice location
925 Main St, East Greenwich, RI 02818
Phone
(401) 884-5333
Enumerated
Oct 27, 2005
Record last updated
Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(401) 884-5664
Medicare enrollment
Enrolled (PECOS I20121009000127); accepts Medicare assignment
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.
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Also registered at 925 Main St

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

  1. Samuel Kagan, M.D.Family Medicine Physician1821074345
  2. Chad Lamendola, M.D.Family Medicine Physician1285670265

Verify John Gormley Slattery 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 RI8483
    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.

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1% fewer Medicare Part D claims than the average family medicine physician in 2024

3,512 Medicare Part D claims for 190 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 198 claims were for opioids.

  1. John Slattery3,512
  2. Specialty average3,544

Most prescribed

  1. Rosuvastatin Calcium165 claims
  2. Levothyroxine Sodium149 claims
  3. Atorvastatin Calcium146 claims
  4. Clonazepam104 claims
  5. Metformin Hcl101 claims
  6. Prednisone75 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: $957.60

43 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Slattery$957.60
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

John Gormley Slattery among 475 family medicine physician records in Rhode Island

John Gormley Slattery, MD is one of 475 family medicine physician records with a practice address in Rhode Island. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 88% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated1989 · median 2008 among the 282 with a school on file
  • Record last updated2007 · 41% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

20 family medicine physician records list a practice address in East Greenwich

They are 20 of the 599 NPPES records with a practice address in East Greenwich, and 475 family medicine physician records in Rhode Island.

The 8 family medicine physician records with the nearest ZIP codes

  1. David Bica, DOEast Greenwich, RI 028181609033190
  2. Karen Blackmer, MDEast Greenwich, RI 028181649250069
  3. Carla Cesario, MDEast Greenwich, RI 028181992725790
  4. Daniel Collins, MDEast Greenwich, RI 028181104874320
  5. Sara Delaporta, M.D.East Greenwich, RI 028181104089523
  6. Thomas Green, DOEast Greenwich, RI 028181366551202
  7. Ellen Hight, MDEast Greenwich, RI 028181548240971
  8. Samuel Kagan, M.D.East Greenwich, RI 028181821074345

Common questions

What is John Gormley Slattery, MD's NPI number?

John Gormley Slattery, MD's National Provider Identifier (NPI) is 1033109236, issued on Oct 27, 2005. An NPI identifies a provider in billing; it is not a license.

Where is John Gormley Slattery, MD located?

The NPPES record lists a practice address at 925 Main St, East Greenwich, RI, 02818. Phone: (401) 884-5333. Providers update this record themselves, so call before visiting.

How can I verify John Gormley Slattery, MD's license?

NPPES lists Rhode Island license number RI8483, 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 John Gormley Slattery, MD prescribe under Medicare Part D?

In 2024, John Gormley Slattery, MD had 3,512 Medicare Part D claims for 190 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.