NPPES file of Aug 9, 2026

Richard T. Leach, DO

Internal Medicine Physician · East Greenwich, RI

Richard T. Leach, DO is an internal medicine physician with a practice address in East Greenwich, Rhode Island, and NPI 1407852155, issued on Jun 27, 2005. Check the license (Rhode Island DO00374, 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
1407852155
Name
Richard T. Leach
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
DO00374 RI
Self-reported in NPPES; status is on the state search
Practice location
1405 S County Trl Ste 2A, East Greenwich, RI 02818
Phone
(401) 736-4570
Enumerated
Jun 27, 2005
Record last updated
Jun 3, 2026
Fax
(401) 921-6931
Medicaid ID
9003058 RI
Medicare enrollment
Enrolled (PECOS I20040924000546); 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 1405 S County Trl Ste 2A

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

  1. Charles Hackett, MDFamily Medicine Physician1629464748
  2. Paula Hughes, PAPhysician Assistant1841211554
  3. Michael Lucarelli, D.O.Family Medicine Physician1689639874
  4. Sandra Peasley, F.N.P.Family Nurse Practitioner1316958127
  5. Jennifer Rosenbaum, M.D.Family Medicine Physician1538548102

Verify Richard T. Leach 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 DO00374
    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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3.2 times the Medicare Part D claims of the average internal medicine physician in 2024

10,031 Medicare Part D claims for 703 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 179 claims were for opioids.

  1. Richard Leach10,031
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium732 claims
  2. Lisinopril552 claims
  3. Amlodipine Besylate372 claims
  4. Omeprazole365 claims
  5. Levothyroxine Sodium345 claims
  6. Alprazolam294 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: $76.96

4 payments; by number, the most common kind was food and beverage; the largest payer was Exact Sciences Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Richard Leach$76.96
  2. Specialty average$1,303.06

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

  1. Affinity Physicians LLC.Warwick, RI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Richard T. Leach among 1,033 internal medicine physician records in Rhode Island

Richard T. Leach, DO is one of 1,033 internal medicine physician records with a practice address in Rhode Island. 80% 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, 90% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated1985 · median 2006 among the 590 with a school on file
  • Record last updated2026 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

25 internal medicine physician records list a practice address in East Greenwich

They are 25 of the 599 NPPES records with a practice address in East Greenwich, and 1,033 internal medicine physician records in Rhode Island.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Herbert Brennan, DOEast Greenwich, RI 028181659489060
  2. David Candow, MDEast Greenwich, RI 028181457365363
  3. Dana Chofay, MDEast Greenwich, RI 028181811943525
  4. Frank D'Alessandro, MD INCEast Greenwich, RI 028181225018955
  5. Richard Delsesto, MDEast Greenwich, RI 028181942318357
  6. David Fried, MDEast Greenwich, RI 028181275520678
  7. Denise Glickman, MDEast Greenwich, RI 028181033158647
  8. James Mancini, MDEast Greenwich, RI 028181720006109

Common questions

What is Richard T. Leach, DO's NPI number?

Richard T. Leach, DO's National Provider Identifier (NPI) is 1407852155, issued on Jun 27, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Richard T. Leach, DO located?

The NPPES record lists a practice address at 1405 S County Trl Ste 2A, East Greenwich, RI, 02818. Phone: (401) 736-4570. Providers update this record themselves, so call before visiting.

How can I verify Richard T. Leach, DO's license?

NPPES lists Rhode Island license number DO00374, 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 Richard T. Leach, DO prescribe under Medicare Part D?

In 2024, Richard T. Leach, DO had 10,031 Medicare Part D claims for 703 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.