Nagendra Ranganatha Rao Tirumali, M.D.
Medical Oncology Physician · Portland, OR
Nagendra Ranganatha Rao Tirumali, M.D. is a medical oncology physician with a practice address in Portland, Oregon, and NPI 1669565230, issued on Oct 2, 2006. Check the license (Oregon OR MD13528, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Nagendra Ranganatha Rao Tirumali
- Credential
- M.D.
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- OR MD13528 OR
Self-reported in NPPES; status is on the state search - Practice location
- 3600 N Interstate Ave, Portland, OR 97227
- Phone
- (503) 331-6545
- Enumerated
- Oct 2, 2006
- Record last updated
- Oct 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (503) 331-6505
- Medicare enrollment
- Enrolled (PECOS I20080318000566); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 107 in Oregon → Look up another NPI →
Also registered at 3600 N Interstate Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nancy Alexander, AU.DAudiologist1912949694
- Rulla AlsaediPharmacist1942907266
- Jennifer AndersonOncology Registered Nurse1942139019
- Shareen BakerOptician1851488373
- Christine Barnett, M.D.Hematology & Oncology Physician1679772743
- Lane Barton, MDPhysical Medicine & Rehabilitation Physician1114036746
Verify Nagendra Ranganatha Rao Tirumali in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license OR MD13528Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average medical oncology physician in 2024
44 Medicare Part D claims for 15 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 50% of claims.
Most prescribed
- Eliquis17 claims
- Hydroxyurea14 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): 45.2 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 one group practice
- Providence Health And Services OregonPortland, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nagendra Ranganatha Rao Tirumali among 107 medical oncology physician records in Oregon
Nagendra Ranganatha Rao Tirumali, M.D. is one of 107 medical oncology physician records with a practice address in Oregon. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 19% of them.
- NPI issued2006 · 19% of these records are older, 49% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1974 · median 2003 among the 76 with a school on file
- Record last updated2021 · 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 207RX0202X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in Oregon
There are 107 medical oncology physician records in Oregon.
All 107 in Oregon → Every provider in Portland → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Alison EshlemanPortland, OR 972271255262994
- Douglas Lackowski, M.D.Portland, OR 972271831292861
- Regan Look, M.D.Portland, OR 972271821091604
- Spencer Shao, M.D.Portland, OR 972271841293420
- Anupama Acheson, MDPortland, OR 972251780689513
- Regan Duffy, MDPortland, OR 972251487876827
- Maria Gregorio, M.D.Portland, OR 972291265475198
- Evthokia Hobbs, M.D.Portland, OR 972251326433475
Common questions
What is Nagendra Ranganatha Rao Tirumali, M.D.'s NPI number?
Nagendra Ranganatha Rao Tirumali, M.D.'s National Provider Identifier (NPI) is 1669565230, issued on Oct 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nagendra Ranganatha Rao Tirumali, M.D. located?
The NPPES record lists a practice address at 3600 N Interstate Ave, Portland, OR, 97227. Phone: (503) 331-6545. Providers update this record themselves, so call before visiting.
How can I verify Nagendra Ranganatha Rao Tirumali, M.D.'s license?
NPPES lists Oregon license number OR MD13528, 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 Nagendra Ranganatha Rao Tirumali, M.D. prescribe under Medicare Part D?
In 2024, Nagendra Ranganatha Rao Tirumali, M.D. had 44 Medicare Part D claims for 15 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.
What is Nagendra Ranganatha Rao Tirumali, M.D.'s MIPS final score?
The 2023 MIPS final score is 45.2 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.