NPPES file of Aug 9, 2026

Sumita Bhatta, MD

Hematology & Oncology Physician · Thousand Oaks, CA

Sumita Bhatta, MD is a hematology & oncology physician with a practice address in Thousand Oaks, California, and NPI 1588827802, issued on Jul 7, 2008. Check the license (California A136079, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1588827802
Name
Sumita Bhatta
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
A136079 CA
125054259 IL
Self-reported in NPPES; status is on the state search
Practice location
1 Amgen Center Dr, Thousand Oaks, CA 91320
Phone
(818) 256-9191
Enumerated
Jul 7, 2008
Record last updated
Sep 13, 2019 (not updated in 7 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1 Amgen Center Dr

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

  1. Robert Brenner, M.D.Nephrology Physician1861431397
  2. Niloufer Cainglit, RN, NPNurse Practitioner1497304786
  3. Steven Galson, MD, MPHPublic Health & General Preventive Medicine Physician1386975993
  4. Leandro Grimaldi, MD, MPH, EMBASpecialist1063364347
  5. Gregg Kasting, MDPreventive Medicine/Occupational Environmental Medicine Physician1831481225
  6. Lisa Mathis, MDPediatrics Physician1528134483

Verify Sumita Bhatta in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A136079
    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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Sumita Bhatta among 1,583 hematology & oncology physician records in California

Sumita Bhatta, 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 not. Its NPI, issued in 2008, is newer than 60% of them.

  • NPI issued2008 · 60% of these records are older, 34% newer
  • In a Medicare fileNo · 83% of these records are
  • In the CMS Doctors and Clinicians fileNo · 71% of these records are
  • Record last updated2019 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

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

  1. Gary Lazar, M.D.Encino, CA 913161861769341
  2. Jerome Davidson, MDNorthridge, CA 913251114926490
  3. Sheldon Davidson, MDNorthridge, CA 913251457350738
  4. Carl Singerman, MDNorthridge, CA 913251134128556
  5. Vinita Singh, MDNorthridge, CA 913251679507248
  6. Draupadi Talreja, M.D.Northridge, CA 913251326073743
  7. Juan Alcantar, MDPorter Ranch, CA 913261972658540
  8. David Kim, M.D.Port Ranch, CA 913261558505321

Common questions

What is Sumita Bhatta, MD's NPI number?

Sumita Bhatta, MD's National Provider Identifier (NPI) is 1588827802, issued on Jul 7, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Sumita Bhatta, MD located?

The NPPES record lists a practice address at 1 Amgen Center Dr, Thousand Oaks, CA, 91320. Phone: (818) 256-9191. Providers update this record themselves, so call before visiting.

How can I verify Sumita Bhatta, MD's license?

NPPES lists California license number A136079, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.