NPPES file of Aug 9, 2026

Andrea Lee Yao, M.D.

Nephrology Physician · Hayward, CA

Andrea Lee Yao, M.D. is a nephrology physician with a practice address in Hayward, California, and NPI 1740354059, issued on Nov 20, 2006. Check the license (California A76246, 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
1740354059
Name
Andrea Lee Yao
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License number
A76246 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 20, 2006
Record last updated
Dec 6, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
00A762460 CA
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 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 Andrea Lee Yao in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A76246
    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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4.1 times the Medicare Part D claims of the average nephrology physician in 2024

6,015 Medicare Part D claims for 161 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. 272 claims were for opioids.

  1. Andrea Yao6,015
  2. Specialty average1,465

Most prescribed

  1. Atorvastatin Calcium408 claims
  2. Gabapentin296 claims
  3. Famotidine249 claims
  4. Amlodipine Besylate242 claims
  5. Levothyroxine Sodium187 claims
  6. Metoprolol Tartrate179 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.

Andrea Lee Yao among 1,468 nephrology physician records in California

Andrea Lee Yao, 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 fileNo · 77% of these records are
  • 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. Sarasa Kimata, M.D.Hayward, CA 945451477631232
  4. George Lai, M.D.Hayward, CA 945451043398803
  5. Wesley Lisker, M.D.Hayward, CA 945451619055472
  6. Chitra Reddy, MDHayward, CA 945451073691846
  7. Rangashree Varadarajan, MDHayward, CA 945451164884623
  8. Clifford Wong, MDHayward, CA 945451780621706

Common questions

What is Andrea Lee Yao, M.D.'s NPI number?

Andrea Lee Yao, M.D.'s National Provider Identifier (NPI) is 1740354059, issued on Nov 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Andrea Lee Yao, 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 Andrea Lee Yao, M.D.'s license?

NPPES lists California license number A76246, 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 Andrea Lee Yao, M.D. prescribe under Medicare Part D?

In 2024, Andrea Lee Yao, M.D. had 6,015 Medicare Part D claims for 161 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.