Mazer Ricky Ally, M.D.
Gastroenterology Physician · Oceanside, CA
Mazer Ricky Ally, M.D. is a gastroenterology physician with a practice address in Oceanside, California, and NPI 1902018666, issued on May 4, 2007. Check the license (California A146924, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mazer Ricky Ally
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- A146924 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2205 Vista Way Ste 340, Oceanside, CA 92054
- Phone
- (760) 704-5870
- Enumerated
- May 4, 2007
- Record last updated
- Oct 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (760) 404-1821
- Medicare enrollment
- Enrolled (PECOS I20170215001341); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 2006
- 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 2205 Vista Way Ste 340
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Whitney Woodruff, NPNurse Practitioner1568557270
Verify Mazer Ricky Ally in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A146924Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% more Medicare Part D claims than the average gastroenterology physician in 2024
910 Medicare Part D claims for 342 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Pantoprazole Sodium295 claims
- Sod Sulf-Potass Sulf-Mag Sulf108 claims
- Omeprazole68 claims
- Famotidine46 claims
- Dicyclomine Hcl32 claims
- Gavilyte-G28 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.
Industry payments in 2024: $33,594.01
76 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
- Scripps HealthOceanside, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mazer Ricky Ally among 2,140 gastroenterology physician records in California
Mazer Ricky Ally, 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 2007, is newer than 52% of them.
- NPI issued2007 · 52% of these records are older, 37% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2006 · median 2002 among the 1,538 with a school on file
- Record last updated2021 · 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 Oceanside → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Behnam Moein Jahromi, M.D.Oceanside, CA 920541255788329
- Sudha Praba, MDCamp Pendleton, CA 920551730171489
- Hellen Chiao, MDOceanside, CA 920561154681435
- Christopher Devereaux, M.D.Oceanside, CA 920561376512848
- Michael Kurtz, M.D.Oceanside, CA 920561487623955
- Megan Novo, MDOceanside, CA 920561770961971
- Javaid Shad, M.D.Oceanside, CA 920561003885922
- Michael Shim, M.D.Oceanside, CA 920561851503353
Common questions
What is Mazer Ricky Ally, M.D.'s NPI number?
Mazer Ricky Ally, M.D.'s National Provider Identifier (NPI) is 1902018666, issued on May 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mazer Ricky Ally, M.D. located?
The NPPES record lists a practice address at 2205 Vista Way Ste 340, Oceanside, CA, 92054. Phone: (760) 704-5870. Providers update this record themselves, so call before visiting.
How can I verify Mazer Ricky Ally, M.D.'s license?
NPPES lists California license number A146924, 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 Mazer Ricky Ally, M.D. prescribe under Medicare Part D?
In 2024, Mazer Ricky Ally, M.D. had 910 Medicare Part D claims for 342 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.