NPPES file of Aug 9, 2026

Mark C. Zeller, DO

Internal Medicine Physician · Riverside, RI

Mark C. Zeller, DO is an internal medicine physician with a practice address in Riverside, Rhode Island, and NPI 1396925186, issued on Nov 8, 2007. Check the license (Rhode Island DO01506, 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
1396925186
Name
Mark C. Zeller
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
DO01506 RI
N0575 TX
Self-reported in NPPES; status is on the state search
Practice location
10 Tripps LN, Riverside, RI 02915
Phone
(401) 654-4098
Enumerated
Nov 8, 2007
Record last updated
Mar 3, 2026
Medicare enrollment
Enrolled (PECOS I20230614002765); accepts Medicare assignment
Medical or professional school
Kansas City University Of Med & Biosciences, College Of Osteo Med, 2005
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 10 Tripps LN

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

  1. Caitlin Cooney, MSN, APRN, FNP-BCFamily Nurse Practitioner1104682764
  2. Brittany Dalphonse, APRNFamily Nurse Practitioner1821716580
  3. Kayla McGloin, NPNurse Practitioner1629648597
  4. Amanda Tiburcio, RNRegistered Nurse1922950898
  5. Elizabeth White, APRN, PHDAdult Health Nurse Practitioner1376759928

Verify Mark C. Zeller 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 DO01506
    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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21% more Medicare Part D claims than the average internal medicine physician in 2024

3,830 Medicare Part D claims for 314 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 123 claims were for opioids.

  1. Mark Zeller3,830
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium252 claims
  2. Amlodipine Besylate203 claims
  3. Lisinopril130 claims
  4. Ozempic125 claims
  5. Metformin Hcl Er108 claims
  6. Albuterol Sulfate Hfa104 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: $26.04

1 payment: food and beverage; the largest payer was Grifols USA, LLC. 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. Mark Zeller$26.04
  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. East Bay Community Action ProgramNewport, RI

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

Mark C. Zeller among 1,033 internal medicine physician records in Rhode Island

Mark C. Zeller, 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 2007, is newer than 38% of them.

  • NPI issued2007 · 38% of these records are older, 57% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2005 · 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).

38 internal medicine physician records list a practice address in Riverside

They are 38 of the 586 NPPES records with a practice address in Riverside, and 1,033 internal medicine physician records in Rhode Island.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Michelle Anvar, MDRiverside, RI 029151992759260
  2. Francis Basile, MDRiverside, RI 029151376580084
  3. Thomas Bledsoe, MDRiverside, RI 029151245277953
  4. Michele Cyr, MDRiverside, RI 029151083668255
  5. David Herec, MDRiverside, RI 029151316984636
  6. Jennifer Jeremiah, MDRiverside, RI 029151851345011
  7. Jonathan Leviss, MDRiverside, RI 029151013973627
  8. Kelly McGarry, MDRiverside, RI 029151578517751

Common questions

What is Mark C. Zeller, DO's NPI number?

Mark C. Zeller, DO's National Provider Identifier (NPI) is 1396925186, issued on Nov 8, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mark C. Zeller, DO located?

The NPPES record lists a practice address at 10 Tripps LN, Riverside, RI, 02915. Phone: (401) 654-4098. Providers update this record themselves, so call before visiting.

How can I verify Mark C. Zeller, DO's license?

NPPES lists Rhode Island license number DO01506, 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 Mark C. Zeller, DO prescribe under Medicare Part D?

In 2024, Mark C. Zeller, DO had 3,830 Medicare Part D claims for 314 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.