Karen Niehaus, M.D.
Internal Medicine Physician · Lincoln City, OR
Karen Niehaus, M.D. is an internal medicine physician with a practice address in Lincoln City, Oregon, and NPI 1003983776, issued on Nov 29, 2006. Check the license (Oregon MD24753, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Karen Niehaus
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD24753 OR
Self-reported in NPPES; status is on the state search - Practice location
- 825 NW Highway 101, Lincoln City, OR 97367
- Phone
- (541) 996-7480
- Enumerated
- Nov 29, 2006
- Record last updated
- Nov 4, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (541) 557-6439
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,116 in Oregon → Look up another NPI →
Also registered at 825 NW Highway 101
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Karen Niehaus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD24753Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,557 Medicare Part D claims for 337 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Levothyroxine Sodium93 claims
- Losartan Potassium86 claims
- Atorvastatin Calcium77 claims
- Metoprolol Succinate72 claims
- Gabapentin67 claims
- Rosuvastatin Calcium64 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): 90.3 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).
Karen Niehaus among 2,116 internal medicine physician records in Oregon
Karen Niehaus, M.D. 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 fileNo · 58% of these records are
- Record last updated2020 · 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).
8 internal medicine physician records list a practice address in Lincoln City
They are 8 of the 245 NPPES records with a practice address in Lincoln City, and 2,116 internal medicine physician records in Oregon.
All 2,116 in Oregon → Every provider in Lincoln City → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kory Huebert, MDLincoln City, OR 973671780748467
- Alexa La Faunce, MDLincoln City, OR 973671801063839
- Hoa Ly, MDLincoln City, OR 973671912971904
- Rejeesh Menon Manchezhathu Rajagopalamenon, MDLincoln City, OR 973671720424476
- Robert Oksenholt, D.O.Lincoln City, OR 973671548208929
- Karl Ordelheide, MDLincoln City, OR 973671073689360
- Nicolai Wohns, M.D.Lincoln City, OR 973671801207279
- Xiomara Castillo Rivera, MDNewport, OR 973651740866599
Common questions
What is Karen Niehaus, M.D.'s NPI number?
Karen Niehaus, M.D.'s National Provider Identifier (NPI) is 1003983776, issued on Nov 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen Niehaus, M.D. located?
The NPPES record lists a practice address at 825 NW Highway 101, Lincoln City, OR, 97367. Phone: (541) 996-7480. Providers update this record themselves, so call before visiting.
How can I verify Karen Niehaus, M.D.'s license?
NPPES lists Oregon license number MD24753, 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 Karen Niehaus, M.D. prescribe under Medicare Part D?
In 2024, Karen Niehaus, M.D. had 1,557 Medicare Part D claims for 337 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Karen Niehaus, M.D.'s MIPS final score?
The 2023 MIPS final score is 90.3 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.