NPPES file of Aug 9, 2026

Rajeswari Chellappah, M.D.

Hematology & Oncology Physician · Roseville, CA

Rajeswari Chellappah, M.D. is a hematology & oncology physician with a practice address in Roseville, California, and NPI 1770758617, issued on Apr 22, 2008. Check the license (California A103454, as entered in NPPES) on the Medical Board of California; 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
1770758617
Name
Rajeswari Chellappah
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
A103454 CA
A-103454 CA
Self-reported in NPPES; status is on the state search
Practice location
2 Medical Plaza Dr, Roseville, CA 95661
Phone
(916) 782-5106
Enumerated
Apr 22, 2008
Record last updated
Aug 17, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20111021000228); 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.
Download card Updates feed

8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →

Also registered at 2 Medical Plaza Dr

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

  1. Steven Amaral, PAPhysician Assistant1922107424
  2. James Arellano, P.A.Surgical Physician Assistant1275541229
  3. Kristin Arreola, M.D.Hematology & Oncology Physician1518166677
  4. Tracy BacchusAudiologist1528239175
  5. Yona Barash, MDSurgery Physician1295859858
  6. John Jay Betz, MDOccupational Medicine Physician1538171681

Verify Rajeswari Chellappah in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A103454    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 California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

45% more Medicare Part D claims than the average hematology & oncology physician in 2024

1,276 Medicare Part D claims for 268 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 46 claims were for opioids.

  1. Rajeswari Chellappah1,276
  2. Specialty average877

Most prescribed

  1. Anastrozole136 claims
  2. Letrozole98 claims
  3. Potassium Chloride65 claims
  4. Gabapentin58 claims
  5. Eliquis57 claims
  6. Acyclovir41 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: $23.92

1 payment: food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. 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.

  1. Rajeswari Chellappah$23.92
  2. Specialty average$7,481.41

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. Sutter Valley Medical FoundationRoseville, CA

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

Rajeswari Chellappah among 1,583 hematology & oncology physician records in California

Rajeswari Chellappah, 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 2008, is newer than 60% of them.

  • NPI issued2008 · 60% of these records are older, 34% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2001 · median 2003 among the 1,124 with a school on file
  • Record last updated2015 · 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 Roseville → Hematology & Oncology Physician nationwide →

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Kristin Arreola, M.D.Roseville, CA 956611518166677
  2. Kristie Bobolis, M.D.Roseville, CA 956611932168598
  3. Sidney Crain, MDRoseville, CA 956611366520041
  4. Jaspreet Dhillon, M.D.Roseville, CA 956611720193006
  5. Uma Gowda, MDRoseville, CA 956611013976570
  6. Julie Hersch, MDRoseville, CA 956611831263433
  7. Frank Hsieh, MDRoseville, CA 956611164594909
  8. Li Hu, MDRoseville, CA 956611740354349

Common questions

What is Rajeswari Chellappah, M.D.'s NPI number?

Rajeswari Chellappah, M.D.'s National Provider Identifier (NPI) is 1770758617, issued on Apr 22, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Rajeswari Chellappah, M.D. located?

The NPPES record lists a practice address at 2 Medical Plaza Dr, Roseville, CA, 95661. Phone: (916) 782-5106. Providers update this record themselves, so call before visiting.

How can I verify Rajeswari Chellappah, M.D.'s license?

NPPES lists California license number A103454, 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 Rajeswari Chellappah, M.D. prescribe under Medicare Part D?

In 2024, Rajeswari Chellappah, M.D. had 1,276 Medicare Part D claims for 268 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.