Mary B. Mockus, MD
Surgery Physician · San Rafael, CA
Mary B. Mockus, MD is a surgery physician with a practice address in San Rafael, California, and NPI 1134203128, issued on Oct 25, 2006. Check the license (California G74292, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mary B. Mockus
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- G74292 CA
Self-reported in NPPES; status is on the state search - Practice location
- 99 Montecillo RD, San Rafael, CA 94903
- Phone
- (415) 444-2000
- Enumerated
- Oct 25, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 00G742920 CA
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 3,118 in California → Look up another NPI →
Also registered at 99 Montecillo RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Scott Adelman, MDCardiovascular Disease Physician1396829362
- Navid AfrahPhysical Therapist1275997017
- Omar Ahmed, PHARMDAmbulatory Care Pharmacist1285254037
- Mary Air, M.D.Physical Medicine & Rehabilitation Physician1376772913
- Tarik Alagha, MDInternal Medicine Physician1740869676
- Paul Alpert, MDUrology Physician1417031402
Verify Mary B. Mockus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G74292Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average surgery physician in 2024
11 Medicare Part D claims, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Mary B. Mockus among 3,118 surgery physician records in California
Mary B. Mockus, MD is one of 3,118 surgery physician records with a practice address in California. 75% 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, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 61% of these records are
- Record last updated2007 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in California
There are 3,118 surgery physician records in California.
All 3,118 in California → Every provider in San Rafael → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Edward Banks, MDSan Rafael, CA 949031871677856
- Richard GeistSan Rafael, CA 949031245418086
- Kenneth Novich, MDSan Rafael, CA 949031851475826
- Michael Parnes, MDSan Rafael, CA 949031619051687
- Frederick Penczak, MDSan Rafael, CA 949031841379070
- Joe Zimmerman, MDSan Rafael, CA 949031306920376
- John Maa, MDGreenbrae, CA 949041356305866
- Mark Peterson, MDGreenbrae, CA 949041831130863
Common questions
What is Mary B. Mockus, MD's NPI number?
Mary B. Mockus, MD's National Provider Identifier (NPI) is 1134203128, issued on Oct 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary B. Mockus, MD located?
The NPPES record lists a practice address at 99 Montecillo RD, San Rafael, CA, 94903. Phone: (415) 444-2000. Providers update this record themselves, so call before visiting.
How can I verify Mary B. Mockus, MD's license?
NPPES lists California license number G74292, 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 Mary B. Mockus, MD prescribe under Medicare Part D?
In 2024, Mary B. Mockus, MD had 11 Medicare Part D claims; the average among surgery physician prescribers was 147. 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.