Rupa Subramanian, M.D.
Hematology & Oncology Physician · Vista, CA
Rupa Subramanian, M.D. is a hematology & oncology physician with a practice address in Vista, California, and NPI 1376547174, issued on Jun 9, 2005. Check the license (California A67026, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Rupa Subramanian
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A67026 CA
Self-reported in NPPES; status is on the state search - Practice location
- 910 Sycamore Ave, Vista, CA 92081
- Phone
- (760) 598-1700
- Enumerated
- Jun 9, 2005
- Record last updated
- Apr 23, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (760) 598-1196
- Medicaid ID
- 00A670260 CA
- Medicare enrollment
- Enrolled (PECOS I20040506001431); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 910 Sycamore Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mark AdlerHematology & Oncology Physician1174552533
- Carolyn ButlerPrimary Care Nurse Practitioner1801889506
- Derek Helton, M.D.Hematology & Oncology Physician1801992839
- Stuart Kipper, M.D.Internal Medicine Physician1114956570
- Chris LewisPhysician Assistant1407883127
- Josephine Sutera, R.N.Oncology Registered Nurse1669671293
Verify Rupa Subramanian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A67026Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% more Medicare Part D claims than the average hematology & oncology physician in 2024
905 Medicare Part D claims for 194 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.
Most prescribed
- Anastrozole427 claims
- Verzenio149 claims
- Letrozole138 claims
- Exemestane36 claims
- Eliquis35 claims
- Prochlorperazine Maleate16 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $550.00
2 payments; by number, the most common kind was grant; the largest payer was AstraZeneca Pharmaceuticals LP. 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
- Regents OF The University OF CaliforniaSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rupa Subramanian among 1,583 hematology & oncology physician records in California
Rupa Subramanian, M.D. is one of 1,583 hematology & oncology physician records with a practice address in California. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 92% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1995 · median 2003 among the 1,124 with a school on file
- Record last updated2008 · 58% 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 California 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 California
There are 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in Vista → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Mark AdlerVista, CA 920811174552533
- Derek Helton, M.D.Vista, CA 920811801992839
- Sujatha Murali, MDSan Marcos, CA 920781366478661
- Rafael Bejar, M.D., PH.D.La Jolla, CA 920931720051493
- Sarah Boles, M.D.La Jolla, CA 920931245391242
- Imawati Budihardjo, M.D., PH.DLa Jolla, CA 920931043337173
- Srila Gopal, M.D.La Jolla, CA 920931831323369
- Ayad Hamdan, M.D.La Jolla, CA 920931144431230
Common questions
What is Rupa Subramanian, M.D.'s NPI number?
Rupa Subramanian, M.D.'s National Provider Identifier (NPI) is 1376547174, issued on Jun 9, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Rupa Subramanian, M.D. located?
The NPPES record lists a practice address at 910 Sycamore Ave, Vista, CA, 92081. Phone: (760) 598-1700. Providers update this record themselves, so call before visiting.
How can I verify Rupa Subramanian, M.D.'s license?
NPPES lists California license number A67026, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Rupa Subramanian, M.D. prescribe under Medicare Part D?
In 2024, Rupa Subramanian, M.D. had 905 Medicare Part D claims for 194 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Rupa Subramanian, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.