NPPES file of Aug 9, 2026

Roya Tabatabai Sheridan, M.D.

Hematology & Oncology Physician · Mather, CA

Roya Tabatabai Sheridan, M.D. is a hematology & oncology physician with a practice address in Mather, California, and NPI 1518284918, issued on Apr 23, 2010. Check the license (California A118809, 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
1518284918
Name
Roya Tabatabai Sheridan
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
A118809 CA
Self-reported in NPPES; status is on the state search
Practice location
10535 Hospital Way, Mather, CA 95655
Phone
(916) 843-7008
Enumerated
Apr 23, 2010
Record last updated
Jun 10, 2022
Medicare enrollment
Enrolled (PECOS I20220322003261); 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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8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →

Also registered at 10535 Hospital Way

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

  1. Stephen Aglubat, M.D.Internal Medicine Physician1497070031
  2. Aliya Akbar, M.D.Family Medicine Physician1467454934
  3. Anthony Albanese, M.D.Addiction Medicine (Internal Medicine) Physician1215910187
  4. Sarah AliPharmacist1851871503
  5. Shelby Alley, DPMFoot & Ankle Surgery Podiatrist1588928790
  6. Chibuzo Anyama, APRN PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1841059912

Verify Roya Tabatabai Sheridan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A118809    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.

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

494 Medicare Part D claims for 50 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 67 claims were for opioids.

  1. Roya Sheridan494
  2. Specialty average877

Most prescribed

  1. Ondansetron Odt29 claims
  2. Hydrocodone-Acetaminophen26 claims
  3. Imatinib Mesylate24 claims
  4. Prochlorperazine Maleate23 claims
  5. Tramadol Hcl21 claims
  6. Loperamide20 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.

Bills Medicare through one group practice

  1. Regents OF The Univ OF CASacramento, CA

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

Roya Tabatabai Sheridan among 1,583 hematology & oncology physician records in California

Roya Tabatabai Sheridan, 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 2010, is newer than 70% of them.

  • NPI issued2010 · 70% of these records are older, 28% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2010 · median 2003 among the 1,124 with a school on file
  • Record last updated2022 · 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 Mather → Hematology & Oncology Physician nationwide →

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

  1. Quy Tran, M.D.Mather, CA 956551437135266
  2. Kristin Arreola, M.D.Roseville, CA 956611518166677
  3. Kristie Bobolis, M.D.Roseville, CA 956611932168598
  4. Rajeswari Chellappah, M.D.Roseville, CA 956611770758617
  5. Sidney Crain, MDRoseville, CA 956611366520041
  6. Jaspreet Dhillon, M.D.Roseville, CA 956611720193006
  7. Uma Gowda, MDRoseville, CA 956611013976570
  8. Julie Hersch, MDRoseville, CA 956611831263433

Common questions

What is Roya Tabatabai Sheridan, M.D.'s NPI number?

Roya Tabatabai Sheridan, M.D.'s National Provider Identifier (NPI) is 1518284918, issued on Apr 23, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Roya Tabatabai Sheridan, M.D. located?

The NPPES record lists a practice address at 10535 Hospital Way, Mather, CA, 95655. Phone: (916) 843-7008. Providers update this record themselves, so call before visiting.

How can I verify Roya Tabatabai Sheridan, M.D.'s license?

NPPES lists California license number A118809, 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 Roya Tabatabai Sheridan, M.D. prescribe under Medicare Part D?

In 2024, Roya Tabatabai Sheridan, M.D. had 494 Medicare Part D claims for 50 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.