Rajesh Thirumaran, M.D.
Hematology & Oncology Physician · Darby, PA
Rajesh Thirumaran, M.D. is a hematology & oncology physician with a practice address in Darby, Pennsylvania, and NPI 1699949040, issued on Apr 16, 2008. Check the license (Pennsylvania MD423189, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Rajesh Thirumaran
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- MD423189 PA
Self-reported in NPPES; status is on the state search - Practice location
- 1500 Lansdowne Ave Ste G-103, Darby, PA 19023
- Phone
- (610) 237-7950
- Enumerated
- Apr 16, 2008
- Record last updated
- Jun 26, 2023
- Fax
- (610) 237-7955
- Medicare enrollment
- Enrolled (PECOS I20040727001268); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 784 in Pennsylvania → Look up another NPI →
Verify Rajesh Thirumaran in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD423189Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
385 Medicare Part D claims for 72 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 42% of claims. 37 claims were for opioids.
Most prescribed
- Eliquis90 claims
- Anastrozole31 claims
- Oxycodone-Acetaminophen21 claims
- Jakafi18 claims
- Ondansetron Hcl18 claims
- Warfarin Sodium18 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.
Industry payments in 2024: $5,323.16
13 payments; by number, the most common kind was food and beverage; the largest payer was Pharmacosmos Therapeutics Inc. The 8,560 providers of this specialty with any payment received $7,481.41 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 one group practice
- Trinity Health Mid-Atlantic Medical GroupLanghorne, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rajesh Thirumaran among 784 hematology & oncology physician records in Pennsylvania
Rajesh Thirumaran, M.D. is one of 784 hematology & oncology physician records with a practice address in Pennsylvania. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 54% of them.
- NPI issued2008 · 54% of these records are older, 40% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1993 · median 2004 among the 553 with a school on file
- Record last updated2023 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Pennsylvania
There are 784 hematology & oncology physician records in Pennsylvania.
All 784 in Pennsylvania → Every provider in Darby → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Lance Leopold, MDDresher, PA 190251386632461
- Mylene Go, M.DChester, PA 190131992964696
- W Alan Keogh, DOUpland, PA 190131205827730
- James Lebedda, MDUpland, PA 190131568453090
- Nirmala Nathan, M.D.Upland, PA 190131992796437
- Raymond Vivacqua, MDUpland, PA 190131821089350
- John Devlin, M.D.Bryn Mawr, PA 190101073728663
- Eric FoxBryn Mawr, PA 190101417310038
Common questions
What is Rajesh Thirumaran, M.D.'s NPI number?
Rajesh Thirumaran, M.D.'s National Provider Identifier (NPI) is 1699949040, issued on Apr 16, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Rajesh Thirumaran, M.D. located?
The NPPES record lists a practice address at 1500 Lansdowne Ave Ste G-103, Darby, PA, 19023. Phone: (610) 237-7950. Providers update this record themselves, so call before visiting.
How can I verify Rajesh Thirumaran, M.D.'s license?
NPPES lists Pennsylvania license number MD423189, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Rajesh Thirumaran, M.D. prescribe under Medicare Part D?
In 2024, Rajesh Thirumaran, M.D. had 385 Medicare Part D claims for 72 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.