Vivian Chu
Obstetrics & Gynecology Physician · Los Angeles, CA
Vivian Chu is an obstetrics & gynecology physician with a practice address in Los Angeles, California, and NPI 1952765521, issued on Apr 11, 2016. Check the license (California A154860, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Vivian Chu
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A154860 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4733 W Sunset Blvd, Los Angeles, CA 90027
- Phone
- (415) 519-7818
- Enumerated
- Apr 11, 2016
- Record last updated
- Dec 17, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20221205001316); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 2016
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 4733 W Sunset Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Isaac Abusleme, M.D.Internal Medicine Physician1891109468
- Nancy Adachi, PTPhysical Therapist1902004245
- Sangeeta Aggarwal, MDInternal Medicine Physician1578655908
Verify Vivian Chu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A154860Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
60 Medicare Part D claims for 31 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol17 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
- Permanente Medical Group IncRedwood City, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Vivian Chu among 5,088 obstetrics & gynecology physician records in California
Vivian Chu is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 85% of them.
- NPI issued2016 · 85% of these records are older, 13% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2016 · median 2004 among the 2,700 with a school on file
- Record last updated2021 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Los Angeles → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Jonathan Azizzadeh, M.D.Los Angeles, CA 900271215949367
- Robert Chu, MDLos Angeles, CA 900271629145560
- Edward Drenth, MDLos Angeles, CA 900271578630414
- Lorrie Dubow, MDLos Angeles, CA 900271720159759
- William Fong, MDLos Angeles, CA 900271568533511
- Gladys Hernandez, MDLos Angeles, CA 900271255408084
- Eduard Minas, MDLos Angeles, CA 900271710097670
- Brian Miyazaki, MDLos Angeles, CA 900271235206111
Common questions
What is Vivian Chu's NPI number?
Vivian Chu's National Provider Identifier (NPI) is 1952765521, issued on Apr 11, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Vivian Chu located?
The NPPES record lists a practice address at 4733 W Sunset Blvd, Los Angeles, CA, 90027. Phone: (415) 519-7818. Providers update this record themselves, so call before visiting.
How can I verify Vivian Chu's license?
NPPES lists California license number A154860, 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 Vivian Chu prescribe under Medicare Part D?
In 2024, Vivian Chu had 60 Medicare Part D claims for 31 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.