NPPES file of Aug 9, 2026

Sarasa Kimata, M.D.

Nephrology Physician · Hayward, CA

Sarasa Kimata, M.D. is a nephrology physician with a practice address in Hayward, California, and NPI 1477631232, issued on Nov 1, 2006. Check the license (California A90862, 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
1477631232
Name
Sarasa Kimata
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License number
A90862 CA
Self-reported in NPPES; status is on the state search
Practice location
27303 Sleepy Hollow Ave S, Hayward, CA 94545
Phone
(510) 454-1000
Enumerated
Nov 1, 2006
Record last updated
Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
00A908620 CA
Medicare enrollment
Enrolled (PECOS I20051214000934); accepts Medicare assignment
Medical or professional school
Warren Alpert Medical School Of Brown University, 2000
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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Also registered at 27303 Sleepy Hollow Ave S

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

  1. Malini Amin, MDPediatrics Physician1801095252
  2. Madhulika Battu, MDPediatrics Physician1245736370
  3. Mario Bernaba, MDNephrology Physician1205499506
  4. Neelam Bhalla, M.D.Nephrology Physician1639118052
  5. Pooja Bhoopalam, PHARMDPharmacist1871022186
  6. Natalie CacAllergy & Immunology Physician1205006657

Verify Sarasa Kimata in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A90862
    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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15% fewer Medicare Part D claims than the average nephrology physician in 2024

1,250 Medicare Part D claims for 232 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.

  1. Sarasa Kimata1,250
  2. Specialty average1,465

Most prescribed

  1. Amlodipine Besylate122 claims
  2. Jardiance109 claims
  3. Losartan Potassium107 claims
  4. Furosemide103 claims
  5. Sevelamer Carbonate71 claims
  6. Hydralazine Hcl63 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. Permanente Medical Group IncHayward, CA

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

Sarasa Kimata among 1,468 nephrology physician records in California

Sarasa Kimata, M.D. is one of 1,468 nephrology physician records with a practice address in California. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 48% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated2000 · median 2001 among the 1,128 with a school on file
  • Record last updated2021 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in California

There are 1,468 nephrology physician records in California.

The 8 nephrology physician records with the nearest ZIP codes

  1. Mario Bernaba, MDHayward, CA 945451205499506
  2. Neelam Bhalla, M.D.Hayward, CA 945451639118052
  3. George Lai, M.D.Hayward, CA 945451043398803
  4. Wesley Lisker, M.D.Hayward, CA 945451619055472
  5. Chitra Reddy, MDHayward, CA 945451073691846
  6. Rangashree Varadarajan, MDHayward, CA 945451164884623
  7. Clifford Wong, MDHayward, CA 945451780621706
  8. Andrea Yao, M.D.Hayward, CA 945451740354059

Common questions

What is Sarasa Kimata, M.D.'s NPI number?

Sarasa Kimata, M.D.'s National Provider Identifier (NPI) is 1477631232, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Sarasa Kimata, M.D. located?

The NPPES record lists a practice address at 27303 Sleepy Hollow Ave S, Hayward, CA, 94545. Phone: (510) 454-1000. Providers update this record themselves, so call before visiting.

How can I verify Sarasa Kimata, M.D.'s license?

NPPES lists California license number A90862, 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 Sarasa Kimata, M.D. prescribe under Medicare Part D?

In 2024, Sarasa Kimata, M.D. had 1,250 Medicare Part D claims for 232 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.

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.