Timothy Bilash, M.D., M.S.
Obstetrics & Gynecology Physician · La Jolla, CA
Timothy Bilash, M.D., M.S. is an obstetrics & gynecology physician with a practice address in La Jolla, California, and NPI 1437189545, issued on Jul 4, 2006. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Timothy Bilash
- Credential
- M.D., M.S.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- C1-0004423 DE
036-088375 IL
Self-reported in NPPES; status is on the state search - Practice location
- 9834 Genesee Ave, La Jolla, CA 92037
- Phone
- (858) 481-0600
- Enumerated
- Jul 4, 2006
- Record last updated
- Oct 28, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (866) 336-5620
- Medicaid ID
- 036088375 IL
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 9834 Genesee Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Timothy Bilash in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
21 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
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.
Timothy Bilash among 5,088 obstetrics & gynecology physician records in California
Timothy Bilash, M.D., M.S. 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2015 · 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).
68 obstetrics & gynecology physician records list a practice address in La Jolla
They are 68 of the 3,648 NPPES records with a practice address in La Jolla, and 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in La Jolla → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Seth Bulow, M.D.La Jolla, CA 920371174635320
- Chrysten Cunningham, DOLa Jolla, CA 920371265435606
- Pamela Deak, M.D.La Jolla, CA 920371316978554
- Maureen Farrell, M.D.La Jolla, CA 920371508842303
- Robert Gordon, M.D.La Jolla, CA 920371619944030
- Pratima Gupta, MDLa Jolla, CA 920371891749842
- Patrick Haggerty, MDLa Jolla, CA 920371245280841
- Mel Kurtulus, M.D.La Jolla, CA 920371134193105
Common questions
What is Timothy Bilash, M.D., M.S.'s NPI number?
Timothy Bilash, M.D., M.S.'s National Provider Identifier (NPI) is 1437189545, issued on Jul 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Timothy Bilash, M.D., M.S. located?
The NPPES record lists a practice address at 9834 Genesee Ave, La Jolla, CA, 92037. Phone: (858) 481-0600. Providers update this record themselves, so call before visiting.
How can I verify Timothy Bilash, M.D., M.S.'s license?
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 Timothy Bilash, M.D., M.S. prescribe under Medicare Part D?
In 2024, Timothy Bilash, M.D., M.S. had 21 Medicare Part D claims; 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.