Tim Arakawa, MD, PHD
Endocrinology, Diabetes & Metabolism Physician · Corvallis, OR
Tim Arakawa, MD, PHD is an endocrinology, diabetes & metabolism physician with a practice address in Corvallis, Oregon, and NPI 1841421229, issued on Aug 3, 2009. Check the license (Oregon MD197143, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Tim Arakawa
- Credential
- MD, PHD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License numbers
- MD197143 OR
M-1876 GU
Self-reported in NPPES; status is on the state search - Practice location
- 3615 NW Samaritan Dr Ste G2, Corvallis, OR 97330
- Phone
- (541) 768-7900
- Enumerated
- Aug 3, 2009
- Record last updated
- Nov 4, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200326001691); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 104 in Oregon → Look up another NPI →
Also registered at 3615 NW Samaritan Dr Ste G2
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Judy Shih, M.D. PH.D.Endocrinology, Diabetes & Metabolism Physician1912076035
Verify Tim Arakawa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD197143Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
43% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
1,490 Medicare Part D claims for 189 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.
Most prescribed
- Levothyroxine Sodium319 claims
- Jardiance61 claims
- Synthroid59 claims
- Methimazole58 claims
- Omnipod 5 Dexg7g6 Pods (Gen 5)55 claims
- Hydrocortisone46 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): 91.4 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).
Industry payments in 2024: $81.06
4 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 5,661 providers of this specialty with any payment received $5,742.15 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.
Bills Medicare through 3 group practices
- Albany General HospitalAlbany, OR
- Good Samaritan Hospital CorvallisCorvallis, OR
- Mid-Valley Healthcare IncLebanon, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tim Arakawa among 104 endocrinology, diabetes & metabolism physician records in Oregon
Tim Arakawa, MD, PHD is one of 104 endocrinology, diabetes & metabolism physician records with a practice address in Oregon. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 69% of them.
- NPI issued2009 · 69% of these records are older, 27% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2009 · median 2001 among the 67 with a school on file
- Record last updated2020 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Oregon
There are 104 endocrinology, diabetes & metabolism physician records in Oregon.
All 104 in Oregon → Every provider in Corvallis → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Jonathan Bennion, M.D.Corvallis, OR 973301639439862
- Katy Brown, D.O.Corvallis, OR 973301396987699
- Steven CathcartCorvallis, OR 973301801337092
- Patricia Hopson, DOCorvallis, OR 973301508852252
- Susan Sanderson, MDCorvallis, OR 973301417134222
- Judy Shih, M.D. PH.D.Corvallis, OR 973301912076035
- Patrick Boyle, MDDepoe Bay, OR 973411184630816
- Ekaterina ManuylovaSalem, OR 973061831459817
Common questions
What is Tim Arakawa, MD, PHD's NPI number?
Tim Arakawa, MD, PHD's National Provider Identifier (NPI) is 1841421229, issued on Aug 3, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Tim Arakawa, MD, PHD located?
The NPPES record lists a practice address at 3615 NW Samaritan Dr Ste G2, Corvallis, OR, 97330. Phone: (541) 768-7900. Providers update this record themselves, so call before visiting.
How can I verify Tim Arakawa, MD, PHD's license?
NPPES lists Oregon license number MD197143, 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 Tim Arakawa, MD, PHD prescribe under Medicare Part D?
In 2024, Tim Arakawa, MD, PHD had 1,490 Medicare Part D claims for 189 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
What is Tim Arakawa, MD, PHD's MIPS final score?
The 2023 MIPS final score is 91.4 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.