NPPES file of Aug 9, 2026

John Ritzo, MD

Family Medicine Physician · Lewiston, ME

John Ritzo, MD is a family medicine physician with a practice address in Lewiston, Maine, and NPI 1326780115, issued on Apr 12, 2022. Check the license (Maine EC221068, as entered in NPPES) on the Maine Board of Licensure in Medicine; 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
1326780115
Name
John Ritzo
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
EC221068 ME
Self-reported in NPPES; status is on the state search
Practice location
76 High St, Lewiston, ME 04240
Phone
(207) 795-2800
Enumerated
Apr 12, 2022
Record last updated
Apr 12, 2022
Medicare enrollment
Enrolled (PECOS I20250822003826); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 76 High St

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

  1. Rebecca Adamson, MDFamily Medicine Physician1912313982
  2. Deana Albert, N.P.Adult Health Nurse Practitioner1578543278
  3. Clare Alexander, MDFamily Medicine Physician1548676513
  4. Emanuelle AndrianopoulosFamily Medicine Physician1801738125
  5. Jesse Atwood, DOFamily Medicine Physician1497492417
  6. Stephanie Aung, MDFamily Medicine Physician1144450529

Verify John Ritzo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
    Search for license EC221068
    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 Maine 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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67% fewer Medicare Part D claims than the average family medicine physician in 2024

1,176 Medicare Part D claims for 126 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. John Ritzo1,176
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium76 claims
  2. Lisinopril67 claims
  3. Albuterol Sulfate Hfa57 claims
  4. Metoprolol Succinate45 claims
  5. Losartan Potassium36 claims
  6. Amlodipine Besylate35 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.

John Ritzo among 1,172 family medicine physician records in Maine

John Ritzo, MD is one of 1,172 family medicine physician records with a practice address in Maine. 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 2022, is newer than 93% of them.

  • NPI issued2022 · 93% of these records are older, 4% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2022 · median 2008 among the 668 with a school on file
  • Record last updated2022 · 60% 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 Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

92 family medicine physician records list a practice address in Lewiston

They are 92 of the 1,728 NPPES records with a practice address in Lewiston, and 1,172 family medicine physician records in Maine.

The 8 family medicine physician records with the nearest ZIP codes

  1. Peter Beeckel, MDLewiston, ME 042401780614149
  2. Edward Bogner, M.D.Lewiston, ME 042401952376287
  3. Edmund Claxton, MDLewiston, ME 042401881680072
  4. Alice Haines, M.D.Lewiston, ME 042401619967361
  5. Bruce KenneyLewiston, ME 042401629058185
  6. Amy Kustra Barksdale, M.D.Lewiston, ME 042401124195466
  7. Shauna McElrath, DOLewiston, ME 042401902989015
  8. James MellohLewiston, ME 042401760453856

Common questions

What is John Ritzo, MD's NPI number?

John Ritzo, MD's National Provider Identifier (NPI) is 1326780115, issued on Apr 12, 2022. An NPI identifies a provider in billing; it is not a license.

Where is John Ritzo, MD located?

The NPPES record lists a practice address at 76 High St, Lewiston, ME, 04240. Phone: (207) 795-2800. Providers update this record themselves, so call before visiting.

How can I verify John Ritzo, MD's license?

NPPES lists Maine license number EC221068, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does John Ritzo, MD prescribe under Medicare Part D?

In 2024, John Ritzo, MD had 1,176 Medicare Part D claims for 126 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.