Simon Shamass, MD
Emergency Medicine Physician · Modesto, CA
Simon Shamass, MD is an emergency medicine physician with a practice address in Modesto, California, and NPI 1851718738, issued on Mar 27, 2014. Check the license (California A171931, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Simon Shamass
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A171931 CA
Self-reported in NPPES; status is on the state search - Practice location
- 600 Coffee RD, Modesto, CA 95355
- Phone
- (209) 550-4777
- Enumerated
- Mar 27, 2014
- Record last updated
- Jun 5, 2025
- Medicare enrollment
- Enrolled (PECOS I20220112001860); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 600 Coffee RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Simon Shamass in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A171931Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.1 times the Medicare Part D claims of the average emergency medicine physician in 2024
702 Medicare Part D claims for 443 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Cephalexin95 claims
- Doxycycline Monohydrate60 claims
- Azithromycin50 claims
- Mupirocin48 claims
- Prednisone46 claims
- Amoxicillin-Clavulanate Potass44 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
- Sutter Valley Medical FoundationModesto, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Simon Shamass among 7,751 emergency medicine physician records in California
Simon Shamass, MD is one of 7,751 emergency 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 2014, is newer than 69% of them.
- NPI issued2014 · 69% of these records are older, 28% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2014 · median 2011 among the 4,560 with a school on file
- Record last updated2025 · 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 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Modesto → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Gregory Bowerman, MDModesto, CA 953551083721864
- Paul Dechant, M.D.Modesto, CA 953551306914445
- Frank Fower, M.D.,FACEPModesto, CA 953551861437816
- Christopher Freye, MDModesto, CA 953551750499497
- Ravi Gogna, MDModesto, CA 953551447338355
- Keith Hughes, MDModesto, CA 953551295844850
- Kanthi Kiran, MDModesto, CA 953551639286404
- Alfredo Montelongo, MDModesto, CA 953551497813893
Common questions
What is Simon Shamass, MD's NPI number?
Simon Shamass, MD's National Provider Identifier (NPI) is 1851718738, issued on Mar 27, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Simon Shamass, MD located?
The NPPES record lists a practice address at 600 Coffee RD, Modesto, CA, 95355. Phone: (209) 550-4777. Providers update this record themselves, so call before visiting.
How can I verify Simon Shamass, MD's license?
NPPES lists California license number A171931, 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 Simon Shamass, MD prescribe under Medicare Part D?
In 2024, Simon Shamass, MD had 702 Medicare Part D claims for 443 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.