Mark Drucker, MD
Ophthalmology Physician · Walnut Creek, CA
Mark Drucker, MD is an ophthalmology physician with a practice address in Walnut Creek, California, and NPI 1699753046, issued on Jan 5, 2006. Check the license (California G0045173, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mark Drucker
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- G0045173 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1855 San Miguel Dr, Walnut Creek, CA 94596
- Phone
- (925) 935-4978
- Enumerated
- Jan 5, 2006
- Record last updated
- May 16, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (925) 935-9542
- Medicaid ID
- OOG451730 CA
- Entity
- Type 1 · individual
Also registered at 1855 San Miguel Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bret Annoni, D.D.S.General Practice Dentistry1982651295
- Bobby Aycock, M.D.Plastic Surgery Physician1063567873
- Joseph Barakeh, DO PHDOphthalmology Physician1013990613
- Michael Carpentier, D.D.S.General Practice Dentistry1568558476
- Howard Friedman, PH.D.Clinical Neuropsychologist1578789780
- Charles Hanson, M.D.Pediatrics Physician1245243567
Verify Mark Drucker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G0045173Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other ophthalmology physician records in California
- Sam Abbassi, MD, MSWest Hills, CA1881937720
- Richard Abbott, M.D.San Francisco, CA1346276573
- Jean-Paul Abboud, M.D., PH.D.Del Mar, CA1760776728
- Nizar Abdelfattah, MDPasadena, CA1801359393
- Parastou Abedi, MDAliso Viejo, CA1720067333
- Shahla Abedi, MDAliso Viejo, CA1467431072
- Lilit Ablabutyan, M.D.Glendale, CA1497013064
- Nathan Abraham, M.D.Valencia, CA1306224456
- James Abrams, M.D.San Bruno, CA1912903329
- Adam Abroms, MDWestlake Village, CA1497743702
Common questions
What is Mark Drucker, MD's NPI number?
Mark Drucker, MD's National Provider Identifier (NPI) is 1699753046, issued on Jan 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Drucker, MD located?
The NPPES record lists a practice address at 1855 San Miguel Dr, Walnut Creek, CA, 94596. Phone: (925) 935-4978. Providers update this record themselves, so call before visiting.
How can I verify Mark Drucker, MD's license?
NPPES lists California license number G0045173, 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. 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.