Richard C. Manthey, MD
Internal Medicine Physician · Portland, OR
Richard C. Manthey, MD is an internal medicine physician with a practice address in Portland, Oregon, and NPI 1639120314, issued on May 15, 2006. Check the license (Oregon MD28549, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Richard C. Manthey
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- MD28549 OR
MD.018258 LA
Self-reported in NPPES; status is on the state search - Practice location
- 1321 NE 99TH Ave, Portland, OR 97220
- Phone
- (503) 215-9900
- Enumerated
- May 15, 2006
- Record last updated
- Mar 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (503) 215-4025
- Medicaid ID
- 500610065 OR
- Medicare enrollment
- Enrolled (PECOS I20080804000319); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In New Orleans, 1985
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,116 in Oregon → Look up another NPI →
Also registered at 1321 NE 99TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Richard C. Manthey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD28549Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
188 Medicare Part D claims for 154 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin25 claims
- Doxycycline Monohydrate15 claims
- Prednisone12 claims
- Albuterol Sulfate Hfa11 claims
- Sulfamethoxazole-Trimethoprim11 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): 87.8 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Providence Health And Services OregonHillsboro, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Richard C. Manthey among 2,116 internal medicine physician records in Oregon
Richard C. Manthey, MD is one of 2,116 internal medicine 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, 54% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1985 · median 2008 among the 1,232 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
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.
All 2,116 in Oregon → Every provider in Portland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Soraya Abbassian, M.D.Portland, OR 972201225029184
- Mahnaz Ahmad, M.D.Portland, OR 972201124046727
- Michael Bower, MDPortland, OR 972201700814936
- Kay Gates, MDPortland, OR 972201437194891
- Richard Gicking, MDPortland, OR 972201477524338
- Richard Hsu, MDPortland, OR 972201174552491
- Linda Hungerford, MDPortland, OR 972201902832363
- Jennifer Lin, MDPortland, OR 972201114996485
Common questions
What is Richard C. Manthey, MD's NPI number?
Richard C. Manthey, MD's National Provider Identifier (NPI) is 1639120314, issued on May 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Richard C. Manthey, MD located?
The NPPES record lists a practice address at 1321 NE 99TH Ave, Portland, OR, 97220. Phone: (503) 215-9900. Providers update this record themselves, so call before visiting.
How can I verify Richard C. Manthey, MD's license?
NPPES lists Oregon license number MD28549, 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 Richard C. Manthey, MD prescribe under Medicare Part D?
In 2024, Richard C. Manthey, MD had 188 Medicare Part D claims for 154 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Richard C. Manthey, MD's MIPS final score?
The 2023 MIPS final score is 87.8 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.