Ralph Merrill Prows, M.D.
Internal Medicine Physician · Portland, OR
Ralph Merrill Prows, M.D. is an internal medicine physician with a practice address in Portland, Oregon, and NPI 1760523831, issued on Feb 9, 2007. Check the license (Oregon 18657, as entered in NPPES) on the Oregon Medical Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Ralph Merrill Prows
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 18657 OR
Self-reported in NPPES; status is on the state search - Practice location
- 200 SW Market St, Portland, OR 97201
- Phone
- (503) 225-5170
- Enumerated
- Feb 9, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 200 SW Market St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Joseph Meurer, M.D.Ophthalmology Physician1598863938
- Avrel Nudelman, O.D.Optometrist1306916457
- Emily SladickaClinical Social Worker1801330634
Verify Ralph Merrill Prows in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license 18657Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
889 internal medicine physician records list a practice address in Portland
They are 889 of the 42,088 NPPES records with a practice address in Portland, and 2,116 internal medicine physician records in Oregon. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 889 in Portland → All 2,116 in Oregon → Every provider in Portland →
Other internal medicine physician records in Oregon
- Charmaine Clarisse Abalos, M.D.Medford, OR1700376050
- Soraya Abbassian, M.D.Portland, OR1225029184
- Mohamed Abdel Khalek, M.DRoseburg, OR1972687390
- Rand AbedalweliPortland, OR1265019996
- Robert Abernathy, M.D.Bend, OR1063433449
- Rebecca Abney, D.O.Portland, OR1881984748
- Mohamed Aboukhashan, MDMedford, OR1932350782
- Allison Abraham, D.O.Portland, OR1831488444
- Heidi Abreu Pacheco, M.DMount Angel, OR1669691721
- Hennie Abrio, MDRoseburg, OR1891925129
Common questions
What is Ralph Merrill Prows, M.D.'s NPI number?
Ralph Merrill Prows, M.D.'s National Provider Identifier (NPI) is 1760523831, issued on Feb 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Ralph Merrill Prows, M.D. located?
The NPPES record lists a practice address at 200 SW Market St, Portland, OR, 97201. Phone: (503) 225-5170. Providers update this record themselves, so call before visiting.
How can I verify Ralph Merrill Prows, M.D.'s license?
NPPES lists Oregon license number 18657, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.