Bobby Chu Ko, MD
Family Medicine Physician · Whittier, CA
Bobby Chu Ko, MD is a family medicine physician with a practice address in Whittier, California, and NPI 1174621957, issued on Sep 20, 2006. Check the license (California C037592, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Bobby Chu Ko
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- C037592 CA
Self-reported in NPPES; status is on the state search - Practice location
- 15217 Leffingwell RD, Whittier, CA 90604
- Phone
- (562) 944-0307
- Enumerated
- Sep 20, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (562) 944-0309
- Medicare enrollment
- Enrolled (PECOS I20101004000111); accepts Medicare assignment
- Medical or professional school
- University Of Arkansas College Of Medicine, 1976
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify Bobby Chu Ko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C037592Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average family medicine physician in 2024
170 Medicare Part D claims for 15 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Atorvastatin Calcium43 claims
- Enalapril Maleate23 claims
- Ozempic14 claims
- Metformin Hcl Er12 claims
- Synthroid11 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.
Bobby Chu Ko among 17,133 family medicine physician records in California
Bobby Chu Ko, MD is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1976 · median 2005 among the 10,652 with a school on file
- Record last updated2007 · 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 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
87 family medicine physician records list a practice address in Whittier
They are 87 of the 2,836 NPPES records with a practice address in Whittier, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Whittier → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Miriam Inzunza, FNP-CWhittier, CA 906041427803444
- Jose Aceves, MDWhittier, CA 906051215031216
- Kimberly Bartelus, MDWhittier, CA 906031831578236
- Charizz Ann BonillaWhittier, CA 906031114808128
- Robert Boonyaputthikul, D.O.Whittier, CA 906031700198801
- Amber Brown, NURSE PRACTITIONERWhittier, CA 906031326671942
- Melvin Coats, M.D.Whittier, CA 906051376599159
- Rachel Dimacali, PA-CWhittier, CA 906031881989846
Common questions
What is Bobby Chu Ko, MD's NPI number?
Bobby Chu Ko, MD's National Provider Identifier (NPI) is 1174621957, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Bobby Chu Ko, MD located?
The NPPES record lists a practice address at 15217 Leffingwell RD, Whittier, CA, 90604. Phone: (562) 944-0307. Providers update this record themselves, so call before visiting.
How can I verify Bobby Chu Ko, MD's license?
NPPES lists California license number C037592, 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 Bobby Chu Ko, MD prescribe under Medicare Part D?
In 2024, Bobby Chu Ko, MD had 170 Medicare Part D claims for 15 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.