Quick answers
- Which hospitals does Manfred P. Ritter work at?
- Medicare's official clinician data lists Manfred P. Ritter at 1 hospital: Providence Seaside Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Manfred P. Ritter see patients?
- Medicare's clinician data lists 3 practice locations, including Warrenton, OR and Seaside, OR. Call before your visit to confirm the address.
- What is Manfred P. Ritter's specialty?
- Medicare lists Colorectal Surgery (Proctology) as the primary specialty.
- Does Manfred P. Ritter accept Medicare assignment?
- Yes. Medicare's clinician data says Manfred P. Ritter accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Manfred P. Ritter?
- (503) 861-6500, as listed in official Medicare / NPI Registry data.
- What is Manfred P. Ritter's NPI number?
- 1861593840. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Manfred P. Ritter works
Medicare's Facility Affiliation Data lists Manfred P. Ritter at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Providence Seaside HospitalSeaside, OR · Critical Access Hospital · CCN 381303
Practice locations
Addresses where Manfred P. Ritter is enrolled with Medicare (CMS data updated 2026-10-02).
- 113 S Hwy 101Warrenton, OR 97146 (503) 861‑6500
- 725 S Wahanna RdSeaside, OR 97138 (503) 717‑7000
- 727 S Wahanna RdSeaside, OR 97138 (503) 717‑7000
Group practices
Medicare enrollment lists Manfred P. Ritter as a member of this group (CMS data updated 2026-10-02).
- Providence Health and Services Oregon97 clinicians in the group
Specialties
Find other Colorectal Surgery (Proctology) doctors in Oregon →
Other colorectal surgeons in Oregon
Clinicians with the same Medicare primary specialty in Oregon — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1990 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1861593840 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians