Tom W. Chu, M.D.
Clinical Genetics (M.D.) Physician · Sunnyvale, CA
Tom W. Chu, M.D. is a clinical genetics (m.d.) physician with a practice address in Sunnyvale, California, and NPI 1023218062, issued on Jul 18, 2007. Check the license (California G84785, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Tom W. Chu
- Credential
- M.D.
- Primary taxonomy
- Clinical Genetics (M.D.) Physician 207SG0201X
- License number
- G84785 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1025 Cascade Dr, Sunnyvale, CA 94087
- Phone
- (650) 855-5728
- Enumerated
- Jul 18, 2007
- Record last updated
- Jul 18, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest clinical genetics (m.d.) physician records → All 151 in California → Look up another NPI →
Verify Tom W. Chu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G84785Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $41.88
1 payment: food and beverage; the largest payer was Abbvie Inc. The 306 providers of this specialty with any payment received $12,333.04 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Tom W. Chu among 151 clinical genetics (m.d.) physician records in California
Tom W. Chu, M.D. is one of 151 clinical genetics (m.d.) physician records with a practice address in California. 55% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 47% of them.
- NPI issued2007 · 47% of these records are older, 38% newer
- In a Medicare fileYes · 55% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2007 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207SG0201X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Genetics (M.D.) Physician providers in California
There are 151 clinical genetics (m.d.) physician records in California.
All 151 in California → Every provider in Sunnyvale → Clinical Genetics (M.D.) Physician nationwide →
The 8 clinical genetics (m.d.) physician records with the nearest ZIP codes
- Greysha Rivera-Cruz, MDSunnyvale, CA 940871215324637
- Alan RopeSouth San Francisco, CA 940801619056181
- James Goldberg, M.DSan Francisco, CA 941091699796045
- Thomas Musci, M.D.San Francisco, CA 941091487676169
- Alicia Aycinena, M.D.San Francisco, CA 941151548654908
- Shawn Tahata, MDSan Francisco, CA 941181285139170
- Cathy Christian, MDPacifica, CA 940441568514792
- Hind Al Saif, MDSan Francisco, CA 941431831403211
Common questions
What is Tom W. Chu, M.D.'s NPI number?
Tom W. Chu, M.D.'s National Provider Identifier (NPI) is 1023218062, issued on Jul 18, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Tom W. Chu, M.D. located?
The NPPES record lists a practice address at 1025 Cascade Dr, Sunnyvale, CA, 94087. Phone: (650) 855-5728. Providers update this record themselves, so call before visiting.
How can I verify Tom W. Chu, M.D.'s license?
NPPES lists California license number G84785, 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. 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.