Nathan Gruenhagen, M.D.
Diagnostic Radiology Physician · Newport, OR
Nathan Gruenhagen, M.D. is a diagnostic radiology physician with a practice address in Newport, Oregon, and NPI 1013442425, issued on Apr 23, 2017. Check the license (Oregon MD213885, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Nathan Gruenhagen
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- MD213885 OR
Self-reported in NPPES; status is on the state search - Practice location
- 930 SW Abbey St Ste B, Newport, OR 97365
- Phone
- (541) 265-2244
- Enumerated
- Apr 23, 2017
- Record last updated
- Jul 27, 2023
- Medicare enrollment
- Enrolled (PECOS I20230525002312); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 2017
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 522 in Oregon → Look up another NPI →
Also registered at 930 SW Abbey St Ste B
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nathan Gruenhagen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD213885Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 93.6 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 2 group practices
- Corvallis Radiology PCCorvallis, OR
- Samaritan Pacific Health Services IncNewport, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathan Gruenhagen among 522 diagnostic radiology physician records in Oregon
Nathan Gruenhagen, M.D. is one of 522 diagnostic radiology physician records with a practice address in Oregon. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 86% of them.
- NPI issued2017 · 86% of these records are older, 11% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2017 · median 2005 among the 334 with a school on file
- Record last updated2023 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in Oregon
There are 522 diagnostic radiology physician records in Oregon.
All 522 in Oregon → Every provider in Newport → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Michael Peterson, M.D.Newport, OR 973651578651923
- Tinko Zlatev, M.D.Newport, OR 973651588864813
- Nathan PalmerLebanon, OR 973551285088286
- David Wright, MDStayton, OR 973831578545117
- Leslie Arpin, M.D.Corvallis, OR 973301215147475
- Robert Babbel, MDCorvallis, OR 973301730147547
- Leila Bender, M.D.Corvallis, OR 973301619061165
- Jeffrey Boyd, MDCorvallis, OR 973301336107135
Common questions
What is Nathan Gruenhagen, M.D.'s NPI number?
Nathan Gruenhagen, M.D.'s National Provider Identifier (NPI) is 1013442425, issued on Apr 23, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Nathan Gruenhagen, M.D. located?
The NPPES record lists a practice address at 930 SW Abbey St Ste B, Newport, OR, 97365. Phone: (541) 265-2244. Providers update this record themselves, so call before visiting.
How can I verify Nathan Gruenhagen, M.D.'s license?
NPPES lists Oregon license number MD213885, 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.
What is Nathan Gruenhagen, M.D.'s MIPS final score?
The 2023 MIPS final score is 93.6 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.