Andrew S. Ma, M.D.
Gastroenterology Physician · Chandler, AZ
Andrew S. Ma, M.D. is a gastroenterology physician with a practice address in Chandler, Arizona, and NPI 1477085041, issued on Apr 1, 2017. Check the license (Arizona 73037, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Andrew S. Ma
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 73037 AZ
D0089181 MD
Self-reported in NPPES; status is on the state search - Practice location
- 875 S Dobson RD Ste 1, Chandler, AZ 85224
- Phone
- (480) 899-9800
- Enumerated
- Apr 1, 2017
- Record last updated
- Aug 16, 2024
- Medicare enrollment
- Enrolled (PECOS I20240812002188); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 2017
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 403 in Arizona → Look up another NPI →
Also registered at 875 S Dobson RD Ste 1
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Makenzie BartlingPhysician Assistant1568184224
- Salina Faidhalla, MDGastroenterology Physician1801393772
- Caroline Schupbach, MDGastroenterology Physician1821626839
- Bethany Tennyson, M.S.,M.M.S., PA-CPhysician Assistant1821570482
- Anna Workman, PA-CPhysician Assistant1225869548
Verify Andrew S. Ma in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 73037Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average gastroenterology physician in 2024
154 Medicare Part D claims for 77 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Omeprazole18 claims
- Sod Sulf-Potass Sulf-Mag Sulf16 claims
- Linzess15 claims
- Gavilyte-G14 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: $262.36
12 payments; by number, the most common kind was food and beverage; the largest payer was Qol Medical, LLC. 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
- Southeast Valley Gastroenterology Consultants, P.C.Chandler, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Andrew S. Ma among 403 gastroenterology physician records in Arizona
Andrew S. Ma, M.D. is one of 403 gastroenterology physician records with a practice address in Arizona. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 89% of them.
- NPI issued2017 · 89% of these records are older, 9% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2017 · median 2001 among the 295 with a school on file
- Record last updated2024 · 47% 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Arizona
There are 403 gastroenterology physician records in Arizona.
All 403 in Arizona → Every provider in Chandler → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Sanjay Ahluwalia, M.D.Chandler, AZ 852241104807882
- Manish Amin, MDChandler, AZ 852241225093271
- George Bracher, M.D.Chandler, AZ 852241669444006
- James Burgess, MDChandler, AZ 852241235118589
- Emma Castillo, M.D.Chandler, AZ 852241598730053
- Brendan Levy, M.D.Chandler, AZ 852241548260474
- Tarun Mullick, M.D.Chandler, AZ 852241912906462
- Gregory Nguyenduc, M.D.Chandler, AZ 852241326016239
Common questions
What is Andrew S. Ma, M.D.'s NPI number?
Andrew S. Ma, M.D.'s National Provider Identifier (NPI) is 1477085041, issued on Apr 1, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Andrew S. Ma, M.D. located?
The NPPES record lists a practice address at 875 S Dobson RD Ste 1, Chandler, AZ, 85224. Phone: (480) 899-9800. Providers update this record themselves, so call before visiting.
How can I verify Andrew S. Ma, M.D.'s license?
NPPES lists Arizona license number 73037, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Andrew S. Ma, M.D. prescribe under Medicare Part D?
In 2024, Andrew S. Ma, M.D. had 154 Medicare Part D claims for 77 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.