NPPES file of Aug 9, 2026

Christopher Albert Ritter, MD

Family Medicine Physician · Old Town, ME

Christopher Albert Ritter, MD is a family medicine physician with a practice address in Old Town, Maine, and NPI 1104921477, issued on Sep 13, 2006. Check the license (Maine 009635, 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
1104921477
Name
Christopher Albert Ritter
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
009635 ME
Self-reported in NPPES; status is on the state search
Practice location
242 Brunswick St, Old Town, ME 04468
Phone
(207) 827-6128
Enumerated
Sep 13, 2006
Record last updated
Nov 8, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(207) 827-5533
Medicaid ID
112700099 ME
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 242 Brunswick St

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

  1. Amy Alexcovich, DMDDentist1538323019
  2. Jill Bouchard, ANPCAdult Health Nurse Practitioner1255714275
  3. Amanda Bragg, LCSWClinical Social Worker1578220166
  4. Susan Cheff, MDFamily Medicine Physician1548365810
  5. Linda Christensen, PAPhysician Assistant1598940652
  6. Crystal Dockery, DOFamily Medicine Physician1114347069

Verify Christopher Albert Ritter 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 009635
    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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93% fewer Medicare Part D claims than the average family medicine physician in 2024

263 Medicare Part D claims for 56 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Christopher Ritter263
  2. Specialty average3,544

Most prescribed

  1. Rosuvastatin Calcium20 claims
  2. Omeprazole17 claims
  3. Atorvastatin Calcium15 claims
  4. Duloxetine Hcl15 claims
  5. Trazodone Hcl14 claims
  6. Levetiracetam13 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.

Christopher Albert Ritter among 1,172 family medicine physician records in Maine

Christopher Albert Ritter, 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 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 52% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileNo · 57% of these records are
  • Record last updated2011 · 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).

9 family medicine physician records list a practice address in Old Town

They are 9 of the 113 NPPES records with a practice address in Old Town, and 1,172 family medicine physician records in Maine.

The 8 family medicine physician records with the nearest ZIP codes

  1. Christopher Buck, MDOld Town, ME 044681174628440
  2. Susan Cheff, MDOld Town, ME 044681548365810
  3. Crystal Dockery, DOOld Town, ME 044681114347069
  4. Patricia Elliott, MDOld Town, ME 044681275638546
  5. Benjamin Huerth, MDIndian Island, ME 044681467658112
  6. Christopher Johnston, D.O.Old Town, ME 044681720216245
  7. Dianne Kallen, MDOld Town, ME 044681639274913
  8. Chetan Raj Nanjundaiah, MDOld Town, ME 044681922952621

Common questions

What is Christopher Albert Ritter, MD's NPI number?

Christopher Albert Ritter, MD's National Provider Identifier (NPI) is 1104921477, issued on Sep 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Christopher Albert Ritter, MD located?

The NPPES record lists a practice address at 242 Brunswick St, Old Town, ME, 04468. Phone: (207) 827-6128. Providers update this record themselves, so call before visiting.

How can I verify Christopher Albert Ritter, MD's license?

NPPES lists Maine license number 009635, 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 Christopher Albert Ritter, MD prescribe under Medicare Part D?

In 2024, Christopher Albert Ritter, MD had 263 Medicare Part D claims for 56 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.