Vivek Unni, M.D., PH.D.
Neurology Physician · Portland, OR
Vivek Unni, M.D., PH.D. is a neurology physician with a practice address in Portland, Oregon, and NPI 1477670255, issued on Mar 25, 2007. Check the license (Oregon MD155138, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Vivek Unni
- Credential
- M.D., PH.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License numbers
- MD155138 OR
221165 MA
Self-reported in NPPES; status is on the state search - Practice location
- Chh, 3303 S.W. Bond Ave., Portland, OR 97239
- Phone
- (503) 494-7230
- Enumerated
- Mar 25, 2007
- Record last updated
- May 31, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20111108000703); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 2003
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 287 in Oregon → Look up another NPI →
Verify Vivek Unni in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD155138Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average neurology physician in 2024
416 Medicare Part D claims for 62 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Carbidopa-Levodopa122 claims
- Carbidopa-Levodopa Er37 claims
- Clonazepam20 claims
- Amantadine18 claims
- Primidone17 claims
- Donepezil Hcl13 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).
Bills Medicare through one group practice
- University Professional ServicesBeaverton, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Vivek Unni among 287 neurology physician records in Oregon
Vivek Unni, M.D., PH.D. is one of 287 neurology 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 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 45% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2003 · median 2007 among the 176 with a school on file
- Record last updated2012 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Oregon
There are 287 neurology physician records in Oregon.
All 287 in Oregon → Every provider in Portland → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Jacqueline Bernard, M.D.Portland, OR 972391710924709
- Eilis Boudreau, MDPortland, OR 972391093737629
- Nizar Chahin, M.D.Portland, OR 972391225015761
- Edward Cupler, MDPortland, OR 972391225043722
- Deniz Erten-Lyons, MDPortland, OR 972391770598286
- Daniel Gibbs, MD, PHDPortland, OR 972391720080427
- Amie Hiller, M.D.Portland, OR 972391649205600
- Helmi Lutsep, MDPortland, OR 972391164437661
Common questions
What is Vivek Unni, M.D., PH.D.'s NPI number?
Vivek Unni, M.D., PH.D.'s National Provider Identifier (NPI) is 1477670255, issued on Mar 25, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Vivek Unni, M.D., PH.D. located?
The NPPES record lists a practice address at Chh, 3303 S.W. Bond Ave., Portland, OR, 97239. Phone: (503) 494-7230. Providers update this record themselves, so call before visiting.
How can I verify Vivek Unni, M.D., PH.D.'s license?
NPPES lists Oregon license number MD155138, 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 Vivek Unni, M.D., PH.D. prescribe under Medicare Part D?
In 2024, Vivek Unni, M.D., PH.D. had 416 Medicare Part D claims for 62 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
What is Vivek Unni, M.D., PH.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.