Adam Jonathan Snyder, M.D.
Gastroenterology Physician · Glendora, CA
Adam Jonathan Snyder, M.D. is a gastroenterology physician with a practice address in Glendora, California, and NPI 1063704864, issued on May 11, 2011. Check the license (California A130485, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Adam Jonathan Snyder
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- A130485 CA
Self-reported in NPPES; status is on the state search - Practice location
- 415 W Route 66 Ste 102, Glendora, CA 91740
- Phone
- (626) 610-2112
- Enumerated
- May 11, 2011
- Record last updated
- Jul 21, 2022
- Medicare enrollment
- Enrolled (PECOS I20170530000332); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 415 W Route 66 Ste 102
A shared address usually means a shared clinic or building; it does not show who employs whom.
- William Rouhana, DDSDentist1942594452
Verify Adam Jonathan Snyder in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A130485Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% fewer Medicare Part D claims than the average gastroenterology physician in 2024
765 Medicare Part D claims for 233 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Omeprazole165 claims
- Pantoprazole Sodium90 claims
- Famotidine60 claims
- Gavilyte-G50 claims
- Linzess40 claims
- Dicyclomine Hcl32 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 95.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,437.68
59 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Citrus Valley Gastroenterology A Medical CorporationCovina, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Adam Jonathan Snyder among 2,140 gastroenterology physician records in California
Adam Jonathan Snyder, M.D. is one of 2,140 gastroenterology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 74% of them.
- NPI issued2011 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2011 · median 2002 among the 1,538 with a school on file
- Record last updated2022 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in California
There are 2,140 gastroenterology physician records in California.
All 2,140 in California → Every provider in Glendora → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- George Ferenczi, M.D.Glendora, CA 917401932270105
- Christina Chen, M.D., PH.D.Hacienda Heights, CA 917451356425516
- Sam Kam, M.D., PH.D.Hacienda Heights, CA 917451558451815
- Mark Li, M.D.Hacienda Hts, CA 917451356375059
- Kenny Su, M.D.Hacienda Heights, CA 917451437141918
- Shang Wu, M.D.Hacienda Heights, CA 917451336228253
- Hussein Abidali, DORancho Cucamonga, CA 917301205274768
- Deborah Anghesom-Negusse, MDRancho Cucamonga, CA 917301780862169
Common questions
What is Adam Jonathan Snyder, M.D.'s NPI number?
Adam Jonathan Snyder, M.D.'s National Provider Identifier (NPI) is 1063704864, issued on May 11, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Adam Jonathan Snyder, M.D. located?
The NPPES record lists a practice address at 415 W Route 66 Ste 102, Glendora, CA, 91740. Phone: (626) 610-2112. Providers update this record themselves, so call before visiting.
How can I verify Adam Jonathan Snyder, M.D.'s license?
NPPES lists California license number A130485, 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 Adam Jonathan Snyder, M.D. prescribe under Medicare Part D?
In 2024, Adam Jonathan Snyder, M.D. had 765 Medicare Part D claims for 233 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Adam Jonathan Snyder, M.D.'s MIPS final score?
The 2023 MIPS final score is 95.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.