NPPES file of Aug 9, 2026

Manfred Peter Ritter, M.D.

Surgery Physician · Seaside, OR

Manfred Peter Ritter, M.D. is a surgery physician with a practice address in Seaside, Oregon, and NPI 1861593840, issued on Sep 25, 2006. Check the license (Oregon MD166488, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1861593840
Name
Manfred Peter Ritter
Credential
M.D.
Primary taxonomy
Surgery Physician 208600000X
License numbers
MD166488 OR
A72523 CA
Self-reported in NPPES; status is on the state search
Practice location
725 S Wahanna RD, Seaside, OR 97138
Phone
(503) 717-7000
Enumerated
Sep 25, 2006
Record last updated
Sep 28, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicaid ID
500663829 OR
Medicare enrollment
Enrolled (PECOS I20040910000732); 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 725 S Wahanna RD

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

  1. Lynn Archibald, RPHPharmacist1396094819
  2. Holly Barker, MDSurgery Physician1134322258
  3. Steven Blackthorne, M.D.Emergency Medicine Physician1013985449
  4. Kenneth Carey, CRNACertified Registered Nurse Anesthetist1366614976
  5. Zachary Caverley, PAPhysician Assistant1902264559
  6. Michael Coddington, R.PH.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1720346794

Verify Manfred Peter Ritter in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD166488
    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 Oregon 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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47% fewer Medicare Part D claims than the average surgery physician in 2024

78 Medicare Part D claims for 66 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.

  1. Manfred Ritter78
  2. Specialty average147

Most prescribed

  1. Sod Sulf-Potass Sulf-Mag Sulf39 claims
  2. Sutab14 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 79.1 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score83.9
  2. Costout of 100 · 30%42.9
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $47.39

3 payments; by number, the most common kind was food and beverage; the largest payer was Davol Inc. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Manfred Ritter$47.39
  2. Specialty average$3,513.80

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. Providence Health And Services OregonWarrenton, OR

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

Manfred Peter Ritter among 524 surgery physician records in Oregon

Manfred Peter Ritter, M.D. is one of 524 surgery physician records with a practice address in Oregon. 73% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 53% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated1990 · median 2005 among the 321 with a school on file
  • Record last updated2020 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgery Physician providers in Oregon

There are 524 surgery physician records in Oregon.

The 8 surgery physician records with the nearest ZIP codes

  1. Holly Barker, MDSeaside, OR 971381134322258
  2. Lyle Mohr, MDTillamook, OR 971411144332438
  3. Todd Pitts, MDTillamook, OR 971411801850086
  4. Kim Bui, MDNewberg, OR 971321659463511
  5. Richard Fisher, MDNewberg, OR 971321396770186
  6. Shannon Howard, MDNewberg, OR 971321144639691
  7. Gregory Stroup, M.D.Newberg, OR 971321053532564
  8. Janelle Yutzie, MDNewberg, OR 971321720200025

Common questions

What is Manfred Peter Ritter, M.D.'s NPI number?

Manfred Peter Ritter, M.D.'s National Provider Identifier (NPI) is 1861593840, issued on Sep 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Manfred Peter Ritter, M.D. located?

The NPPES record lists a practice address at 725 S Wahanna RD, Seaside, OR, 97138. Phone: (503) 717-7000. Providers update this record themselves, so call before visiting.

How can I verify Manfred Peter Ritter, M.D.'s license?

NPPES lists Oregon license number MD166488, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Manfred Peter Ritter, M.D. prescribe under Medicare Part D?

In 2024, Manfred Peter Ritter, M.D. had 78 Medicare Part D claims for 66 beneficiaries; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.

What is Manfred Peter Ritter, M.D.'s MIPS final score?

The 2023 MIPS final score is 79.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.