Shanmuga S. Pudunagar Subbiah, MD
Hematology & Oncology Physician · Upland, CA
Shanmuga S. Pudunagar Subbiah, MD is a hematology & oncology physician with a practice address in Upland, California, and NPI 1699968503, issued on Aug 23, 2007. Check the license (California A119729, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Shanmuga S. Pudunagar Subbiah
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A119729 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1100 San Bernardino RD Ste 1100, Upland, CA 91786
- Phone
- (909) 949-2242
- Enumerated
- Aug 23, 2007
- Record last updated
- Jul 17, 2025
- Fax
- (909) 981-5783
- Medicare enrollment
- Enrolled (PECOS I20130325000311); 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 1100 San Bernardino RD Ste 1100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cecil Benitez, M.D., PH.D.Radiation Oncology Physician1578182739
- Mark Chang, DOHematology & Oncology Physician1861954182
- Genesis Ibarra, LCSWClinical Social Worker1043767353
- Diba Izadyar, PA-CPhysician Assistant1710520671
- Bradford Kim, M.D.Surgical Oncology Physician1215297080
- Seija Maniskas, MD, MSColon & Rectal Surgery Physician1861015729
Verify Shanmuga S. Pudunagar Subbiah in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A119729Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,179 Medicare Part D claims for 177 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims. 56 claims were for opioids.
Most prescribed
- Eliquis74 claims
- Tamoxifen Citrate74 claims
- Gabapentin49 claims
- Tagrisso44 claims
- Anastrozole43 claims
- Prednisone41 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): 79.3 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).
Industry payments in 2024: $10,171.19
81 payments; by number, the most common kind was food and beverage; 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 2 group practices
- City OF Hope Medical FoundationUpland, CA
- Emanate Health Medical Care FoundationWest Covina, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Shanmuga S. Pudunagar Subbiah among 1,583 hematology & oncology physician records in California
Shanmuga S. Pudunagar Subbiah, MD 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 2007, is newer than 46% of them.
- NPI issued2007 · 46% 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
- Graduated1997 · median 2003 among the 1,124 with a school on file
- Record last updated2025 · 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 Upland → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Camille Adeimy, MDUpland, CA 917861477785160
- Mark Chang, DOUpland, CA 917861861954182
- Natasha GargUpland, CA 917861831458835
- Naveen Gupta, M.D.Upland, CA 917861720024128
- Swapnil Rajurkar, M.D.Upland, CA 917861184777468
- Neel Talwar, MDUpland, CA 917861477977114
- Chau Tran, D.O.Upland, CA 917861083813422
- Lydia Chow, M.D.West Covina, CA 917901770087314
Common questions
What is Shanmuga S. Pudunagar Subbiah, MD's NPI number?
Shanmuga S. Pudunagar Subbiah, MD's National Provider Identifier (NPI) is 1699968503, issued on Aug 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Shanmuga S. Pudunagar Subbiah, MD located?
The NPPES record lists a practice address at 1100 San Bernardino RD Ste 1100, Upland, CA, 91786. Phone: (909) 949-2242. Providers update this record themselves, so call before visiting.
How can I verify Shanmuga S. Pudunagar Subbiah, MD's license?
NPPES lists California license number A119729, 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 Shanmuga S. Pudunagar Subbiah, MD prescribe under Medicare Part D?
In 2024, Shanmuga S. Pudunagar Subbiah, MD had 1,179 Medicare Part D claims for 177 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Shanmuga S. Pudunagar Subbiah, MD's MIPS final score?
The 2023 MIPS final score is 79.3 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.