Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mr. Manfred Peter Ritter, MD

Individual provider Surgery Physician · NPI 1861593840

Mr. Manfred Peter Ritter, MD is a Colorectal Surgery (Proctology) in Seaside, Oregon. Qualified in 1990, 36 years ago. Practices with Providence Health and Services Oregon, a 102-clinician group and accepts Medicare assignment. Licensed in California and Oregon.

Years since qualifying
36
Licensed in
CA, OR
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

725 S Wahanna Rd
Seaside, OR 97138-7735
Phone: (503) 717-7000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence MD166488 (OR)
Surgery Physician Taxonomy 208600000X · Licence A72523 (CA)

Record details

NPI number1861593840
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 25, 2006
Last updated in NPPESSeptember 28, 2020
Certification dateSeptember 28, 2020
Mailing addressPo Box 3397, Portland, OR 97208-3397

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCOLORECTAL SURGERY (PROCTOLOGY)
Medical schoolOTHER
Graduated 1990 (36 years in practice)
Group practice Providence Health And Services Oregon — 102 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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