NPPES file of Aug 9, 2026

Theresa Marie Tretter, MD

Ophthalmology Physician · Warwick, RI

Theresa Marie Tretter, MD is an ophthalmology physician with a practice address in Warwick, Rhode Island, and NPI 1528110244, issued on Jan 16, 2007. Check the license (Rhode Island MD16398, 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
1528110244
Name
Theresa Marie Tretter
Credential
MD
Primary taxonomy
Ophthalmology Physician 207W00000X
License numbers
MD16398 RI
197268 NY
Self-reported in NPPES; status is on the state search
Practice location
566 Toll Gate RD, Warwick, RI 02886
Phone
(401) 738-4800
Enumerated
Jan 16, 2007
Record last updated
Aug 21, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(401) 738-8153
Medicaid ID
01860122 NY
Medicare enrollment
Enrolled (PECOS I20120131000311); accepts Medicare assignment
Medical or professional school
New York Medical College, 1993
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 566 Toll Gate RD

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

  1. Stephanie Costa, CNPNurse Practitioner1083101174
  2. Richard Crute, OPTICIANOptician1134299381
  3. Andrea Depoutot, ODOptometrist1366133555
  4. Vikrant Donthamsetti, D.OOphthalmology Physician1871895110
  5. Lawrence Ehrlich, M.D.Ophthalmology Physician1790713410
  6. Tiffany Graham, O.D.Optometrist1043704794

Verify Theresa Marie Tretter 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 MD16398
    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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Industry payments in 2024: $309.39

2 payments; by number, the most common kind was food and beverage; the largest payer was Harrow Eye, LLC. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Theresa Tretter$309.39
  2. Specialty average$4,535.02

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. Icahn School OF Medicine AT Mount SinaiNew York, NY

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

Theresa Marie Tretter among 85 ophthalmology physician records in Rhode Island

Theresa Marie Tretter, MD is one of 85 ophthalmology physician records with a practice address in Rhode Island. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 66% of them.

  • NPI issued2007 · 66% of these records are older, 25% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated1993 · median 1993 among the 55 with a school on file
  • Record last updated2018 · 74% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in Rhode Island

There are 85 ophthalmology physician records in Rhode Island.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Charles Calenda, M.D.Warwick, RI 028861275557720
  2. Barbara Dodsworth-Feldman, M.D.Warwick, RI 028861073670428
  3. Lawrence Ehrlich, M.D.Warwick, RI 028861790713410
  4. Arthur Geltzer, MDWarwick, RI 028861750399697
  5. Stephen Grimes, M.D.Warwick, RI 028861730175415
  6. Paul Koch, M.D.Warwick, RI 028861538125414
  7. Thomas Leddy, MDWarwick, RI 028861689631699
  8. Richard Luck, D.O.Warwick, RI 028861588664379

Common questions

What is Theresa Marie Tretter, MD's NPI number?

Theresa Marie Tretter, MD's National Provider Identifier (NPI) is 1528110244, issued on Jan 16, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Theresa Marie Tretter, MD located?

The NPPES record lists a practice address at 566 Toll Gate RD, Warwick, RI, 02886. Phone: (401) 738-4800. Providers update this record themselves, so call before visiting.

How can I verify Theresa Marie Tretter, MD's license?

NPPES lists Rhode Island license number MD16398, 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.

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.