Stephen A. Carp, D.O.
Internal Medicine Physician · Keizer, OR
Stephen A. Carp, D.O. is an internal medicine physician with a practice address in Keizer, Oregon, and NPI 1881638310, issued on Jun 15, 2006. Check the license (Oregon MD286859, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Stephen A. Carp
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD286859 OR
Self-reported in NPPES; status is on the state search - Practice location
- 5900 Inland Shores Way N, Keizer, OR 97303
- Phone
- (503) 399-2424
- Enumerated
- Jun 15, 2006
- Record last updated
- May 20, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (503) 375-7429
- Medicaid ID
- 286859 OR
- Medicare enrollment
- Enrolled (PECOS I20100113000052); accepts Medicare assignment
- Medical or professional school
- At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 1999
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,116 in Oregon → Look up another NPI →
Also registered at 5900 Inland Shores Way N
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Stephen A. Carp in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD286859Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.7 times the Medicare Part D claims of the average internal medicine physician in 2024
11,684 Medicare Part D claims for 810 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 276 claims were for opioids.
Most prescribed
- Atorvastatin Calcium718 claims
- Levothyroxine Sodium476 claims
- Amlodipine Besylate461 claims
- Losartan Potassium395 claims
- Omeprazole386 claims
- Furosemide349 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.
Bills Medicare through one group practice
- Salem Clinic PCKeizer, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen A. Carp among 2,116 internal medicine physician records in Oregon
Stephen A. Carp, D.O. 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
- Graduated1999 · median 2008 among the 1,232 with a school on file
- Record last updated2010 · 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).
5 internal medicine physician records list a practice address in Keizer
They are 5 of the 446 NPPES records with a practice address in Keizer, and 2,116 internal medicine physician records in Oregon.
All 2,116 in Oregon → Every provider in Keizer → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Heather Burgin, M.D.Salem, OR 973031912947334
- James Byrkit, M.D.Salem, OR 973031881637288
- Robin Chandler, M.D.Keizer, OR 973031770522609
- Mario Diaz, P.A.Salem, OR 973031164460697
- Mark Fischl, M.D.Salem, OR 973031558302984
- William Gillespie, M.D.Salem, OR 973031497797310
- Paul Huun, M.D.Salem, OR 973031700824810
- Gregory Lackides, M.D.Salem, OR 973031770522690
Common questions
What is Stephen A. Carp, D.O.'s NPI number?
Stephen A. Carp, D.O.'s National Provider Identifier (NPI) is 1881638310, issued on Jun 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen A. Carp, D.O. located?
The NPPES record lists a practice address at 5900 Inland Shores Way N, Keizer, OR, 97303. Phone: (503) 399-2424. Providers update this record themselves, so call before visiting.
How can I verify Stephen A. Carp, D.O.'s license?
NPPES lists Oregon license number MD286859, 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 Stephen A. Carp, D.O. prescribe under Medicare Part D?
In 2024, Stephen A. Carp, D.O. had 11,684 Medicare Part D claims for 810 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.