NPPES file of Aug 9, 2026

Daruka Mahadevan, MD, PHD

Medical Oncology Physician · San Antonio, TX

Daruka Mahadevan, MD, PHD is a medical oncology physician with a practice address in San Antonio, Texas, and NPI 1841398302, issued on Sep 20, 2006. Check the license (Texas S4811, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1841398302
Name
Daruka Mahadevan
Credential
MD, PHD
Primary taxonomy
Medical Oncology Physician 207RX0202X
License numbers
S4811 TX
30621 AZ
Self-reported in NPPES; status is on the state search
Practice location
7979 Wurzbach RD, San Antonio, TX 78229
Phone
(210) 450-1143
Enumerated
Sep 20, 2006
Record last updated
Dec 18, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(210) 450-0407
Medicaid IDs
408576301 TX
721599 AZ
Medicare enrollment
Enrolled (PECOS I20200311000555); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 7979 Wurzbach RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Christina Agyin, APRN-BC FNPFamily Nurse Practitioner1386831386
  2. Brittany Altermatt, ANPAdult Health Nurse Practitioner1902939358
  3. Elise Alvarez, MS, GCGenetic Counselor (M.S.)1609691005
  4. Shammi Anholt, PTPhysical Therapist1821745712
  5. Athanassios Argiris, MDHematology & Oncology Physician1174608509
  6. Sukeshi Arora, MDMedical Oncology Physician1386805604

Verify Daruka Mahadevan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license S4811
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

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44% fewer Medicare Part D claims than the average medical oncology physician in 2024

393 Medicare Part D claims for 59 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 51 claims were for opioids.

  1. Daruka Mahadevan393
  2. Specialty average703

Most prescribed

  1. Levothyroxine Sodium69 claims
  2. Potassium Chloride35 claims
  3. Hydrocodone-Acetaminophen23 claims
  4. Gabapentin22 claims
  5. Prochlorperazine Maleate18 claims
  6. Lorazepam16 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: $2,125.43

11 payments; by number, the most common kind was food and beverage; the largest payer was Histosonics,inc. The 3,343 providers of this specialty with any payment received $11,773.47 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Daruka Mahadevan$2,125
  2. Specialty average$11,773

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

  1. University OF Texas Health Science Center AT San AntonioSan Antonio, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Daruka Mahadevan among 547 medical oncology physician records in Texas

Daruka Mahadevan, MD, PHD is one of 547 medical oncology physician records with a practice address in Texas. 85% 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 45% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated1990 · median 2000 among the 414 with a school on file
  • Record last updated2020 · 62% 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 Texas 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 Texas

There are 547 medical oncology physician records in Texas.

The 8 medical oncology physician records with the nearest ZIP codes

  1. Muralidhar Beeram, M.D.San Antonio, TX 782291265426282
  2. Ronald Drengler, M.D.San Antonio, TX 782291265459168
  3. Virginia Kaklamani, MDSan Antonio, TX 782291841235439
  4. Anand Karnad, M.D.San Antonio, TX 782291023011624
  5. Amy Lang, M.D.San Antonio, TX 782291104850486
  6. Charles Lemaistre, M.D.San Antonio, TX 782291033176946
  7. Robert Marciniak, M.D.San Antonio, TX 782291700889201
  8. Monica Mita, MDSan Antonio, TX 782291760450043

Common questions

What is Daruka Mahadevan, MD, PHD's NPI number?

Daruka Mahadevan, MD, PHD's National Provider Identifier (NPI) is 1841398302, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Daruka Mahadevan, MD, PHD located?

The NPPES record lists a practice address at 7979 Wurzbach RD, San Antonio, TX, 78229. Phone: (210) 450-1143. Providers update this record themselves, so call before visiting.

How can I verify Daruka Mahadevan, MD, PHD's license?

NPPES lists Texas license number S4811, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Daruka Mahadevan, MD, PHD prescribe under Medicare Part D?

In 2024, Daruka Mahadevan, MD, PHD had 393 Medicare Part D claims for 59 beneficiaries; the average among medical oncology physician prescribers was 703. 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.