Sara Holthuis, M.D.
Family Medicine Physician · Portland, OR
Sara Holthuis, M.D. is a family medicine physician with a practice address in Portland, Oregon, and NPI 1912312034, issued on Jun 26, 2014. Check the license (Oregon MD183053, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Sara Holthuis
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- MD183053 OR
MD60656713 WA
Self-reported in NPPES; status is on the state search - Practice location
- 3550 N Interstate Ave, Portland, OR 97227
- Phone
- (038) 135-2000
- Enumerated
- Jun 26, 2014
- Record last updated
- Feb 4, 2022
- Medicare enrollment
- Enrolled (PECOS I20171120002362); accepts Medicare assignment
- Medical or professional school
- University Of Pittsburgh School Of Medicine, 2014
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,847 in Oregon → Look up another NPI →
Also registered at 3550 N Interstate Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Brenda Annotti, F.N.P.Gerontology Registered Nurse1255335295
Verify Sara Holthuis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD183053Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% fewer Medicare Part D claims than the average family medicine physician in 2024
2,340 Medicare Part D claims for 300 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 108 claims were for opioids.
Most prescribed
- Atorvastatin Calcium223 claims
- Losartan Potassium101 claims
- Amlodipine Besylate94 claims
- Levothyroxine Sodium85 claims
- Lisinopril82 claims
- Trazodone Hcl69 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
- Kaiser Foundation Health Plan OF The NorthwestClackamas, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sara Holthuis among 2,847 family medicine physician records in Oregon
Sara Holthuis, M.D. is one of 2,847 family medicine physician records with a practice address in Oregon. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 73% of them.
- NPI issued2014 · 73% of these records are older, 24% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2014 · median 2009 among the 1,671 with a school on file
- Record last updated2022 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
561 family medicine physician records list a practice address in Portland
They are 561 of the 42,088 NPPES records with a practice address in Portland, and 2,847 family medicine physician records in Oregon.
All 2,847 in Oregon → Every provider in Portland → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Kyle Besaw, MDPortland, OR 972271407344872
- Timothy Elzinga, MDPortland, OR 972271841497211
- Nilana Gunasekaran, M.D.Portland, OR 972271942393673
- Mia Hosaka, D.O.Portland, OR 972271649596552
- Leila Keltner, MDPortland, OR 972271316061609
- Robyn Liu, MDPortland, OR 972271447387360
- Mustafa Mahmood, M.D.Portland, OR 972271083076731
- Matthew Reid, M.D.Portland, OR 972271861461782
Common questions
What is Sara Holthuis, M.D.'s NPI number?
Sara Holthuis, M.D.'s National Provider Identifier (NPI) is 1912312034, issued on Jun 26, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Sara Holthuis, M.D. located?
The NPPES record lists a practice address at 3550 N Interstate Ave, Portland, OR, 97227. Phone: (038) 135-2000. Providers update this record themselves, so call before visiting.
How can I verify Sara Holthuis, M.D.'s license?
NPPES lists Oregon license number MD183053, 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 Sara Holthuis, M.D. prescribe under Medicare Part D?
In 2024, Sara Holthuis, M.D. had 2,340 Medicare Part D claims for 300 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.