Masahiro Horikawa, M.D.
Vascular & Interventional Radiology Physician · Portland, OR
Masahiro Horikawa, M.D. is a vascular & interventional radiology physician with a practice address in Portland, Oregon, and NPI 1538587118, issued on Apr 1, 2014. Check the license (Oregon MD185714, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Masahiro Horikawa
- Credential
- M.D.
- Primary taxonomy
- Vascular & Interventional Radiology Physician 2085R0204X
- License numbers
- MD185714 OR
MF166281 OR
Self-reported in NPPES; status is on the state search - Practice location
- 3181 SW Sam Jackson Park RD, Portland, OR 97239
- Phone
- (503) 494-7660
- Enumerated
- Apr 1, 2014
- Record last updated
- Nov 17, 2023
- Medicare enrollment
- Enrolled (PECOS I20140711001578); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest vascular & interventional radiology physician records → All 75 in Oregon → Look up another NPI →
Also registered at 3181 SW Sam Jackson Park RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alex AamodtCritical Care Medicine Registered Nurse1154257590
- Jefferson Abaricia, MD, PHDStudent in an Organized Health Care Education/Training Program1073215711
- Kenneth Abbey, MDAnesthesiology Physician1588779342
- Matthew Abbott, PA-CMedical Physician Assistant1154738003
- Ayah Abdelsalam Megahed, MD, MSCVascular & Interventional Radiology Physician1023503596
- Obada Abdulrazzak, MDStudent in an Organized Health Care Education/Training Program1598567430
Verify Masahiro Horikawa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD185714Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5% fewer Medicare Part D claims than the average vascular & interventional radiology physician in 2024
71 Medicare Part D claims for 27 beneficiaries, against an average of 75 among the 1,444 providers of this specialty who prescribed in Part D. 22 claims were for opioids.
Most prescribed
- Oxycodone Hcl21 claims
- Methylprednisolone18 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 MIPS final score for 2023 (Medicare payment program): 97.8 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $9,997.03
42 payments; by number, the most common kind was food and beverage; the largest payer was Inari Medical, Inc. The 3,457 providers of this specialty with any payment received $7,206.73 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
6 hospitals and group practices
- Legacy Mount Hood Medical CenterGresham, OR · Acute Care Hospitals3 of 5 stars
- Legacy Emanuel Hospital And Health CenterPortland, OR
- Legacy Good Samaritan Hospital And Medical CenterPortland, OR
- Legacy Meridian Park HospitalTualatin, OR
- Tuality Medical Group LLCHillsboro, OR
- University Professional ServicesPortland, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Masahiro Horikawa among 75 vascular & interventional radiology physician records in Oregon
Masahiro Horikawa, M.D. is one of 75 vascular & interventional radiology physician records with a practice address in Oregon. 92% 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 69% of them.
- NPI issued2014 · 69% of these records are older, 20% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 85% of these records are
- Graduated2006 · median 2009 among the 64 with a school on file
- Record last updated2023 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0204X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Vascular & Interventional Radiology Physician providers in Oregon
There are 75 vascular & interventional radiology physician records in Oregon.
All 75 in Oregon → Every provider in Portland → Vascular & Interventional Radiology Physician nationwide →
The 8 vascular & interventional radiology physician records with the nearest ZIP codes
- Khashayar Farsad, M.D.Portland, OR 972391376578609
- Shellie Josephs, MDPortland, OR 972391902869639
- John Kaufman, MDPortland, OR 972391992711584
- Frederick Keller, M.D.Portland, OR 972391609884139
- Kenneth Kolbeck, MD, PHDPortland, OR 972391538238803
- Paul Lakin, MDPortland, OR 972391376558874
- Kristen Lee, M.D.Portland, OR 972391538468376
- Tanay Patel, M.D.Portland, OR 972391982929840
Common questions
What is Masahiro Horikawa, M.D.'s NPI number?
Masahiro Horikawa, M.D.'s National Provider Identifier (NPI) is 1538587118, issued on Apr 1, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Masahiro Horikawa, M.D. located?
The NPPES record lists a practice address at 3181 SW Sam Jackson Park RD, Portland, OR, 97239. Phone: (503) 494-7660. Providers update this record themselves, so call before visiting.
How can I verify Masahiro Horikawa, M.D.'s license?
NPPES lists Oregon license number MD185714, 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 Masahiro Horikawa, M.D. prescribe under Medicare Part D?
In 2024, Masahiro Horikawa, M.D. had 71 Medicare Part D claims for 27 beneficiaries; the average among vascular & interventional radiology physician prescribers was 75. Part D covers Medicare prescriptions only.
What is Masahiro Horikawa, M.D.'s MIPS final score?
The 2023 MIPS final score is 97.8 of 100. 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.