ANDREW S MA M.D.
NPI 1477085041
Internal Medicine - Gastroenterology in Chandler, AZ
About Andrew S Ma M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANDREW S MA M.D. (NPI 1477085041) is an individual gastroenterology provider in Chandler, Arizona, licensed in Arizona (73037) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS, maintains a secondary practice location in Gilbert, and is a graduate of New York University School Of Medicine (2017).
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Andrew S Ma M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Andrew Ma reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chandler, AZ 85224
- Reassigned Medicare billing, Arizona enrollment
- 25 clinicians in this Medicare group
Pikesville, MD 21208
- Reassigned Medicare billing, Maryland enrollment
- Medicare enrollment name: St Paul Place Specialists, Inc.
- 423 clinicians in this Medicare group
Baltimore, MD 21202
- Reassigned Medicare billing, Maryland enrollment
- 257 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 85224 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHANDLER, AZ 85224
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Andrew Ma's NPI number?
The NPI number for Andrew Ma is 1477085041. It was assigned to this individual provider in the NPPES registry on April 1, 2017.
Where is Andrew Ma located?
Andrew Ma practices at 875 S Dobson Rd Ste 1, Chandler, AZ 85224. The listed phone number is (480) 899-9800.
What is Andrew Ma's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Andrew Ma enrolled in Medicare?
Yes. Andrew Ma is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Andrew Ma's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Ma reassigns Medicare benefits to 3 organizations: Southeast Valley Gastroenterology Consultants, P.C. (Chandler, AZ), Saint Paul Place Specialists, Inc. (Pikesville, MD) and Maryland Family Care, Inc. (Baltimore, MD). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Andrew Ma's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Andrew Ma accept?
Health plans from Cigna HealthCare of Arizona, Inc list Andrew Ma as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Andrew Ma was last updated on August 16, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Andrew S Ma, M.D. · NPI 1477085041
Gastroenterology physician in Chandler, Arizona. Individual provider, active in the CMS NPPES registry since April 1, 2017.
## Identity
- **NPI:** 1477085041 (Entity type: Individual)
- **Enumerated:** April 1, 2017
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 73037 (Arizona)
- **Sole proprietor:** No
## Practice location
- **Address:** 875 S DOBSON RD STE 1, Chandler, AZ 85224-5720
- **Phone:** (480) 899-9800
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Southeast Valley Gastroenterology Consultants, P.C. (NPI 1104861905, Chandler, AZ); Saint Paul Place Specialists, Inc. (NPI 1639110919, Pikesville, MD); Maryland Family Care, Inc. (NPI 1598718256, Baltimore, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York University School Of Medicine, class of 2017
## Record status
- **NPPES last updated:** August 16, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1477085041) · Data from the CMS NPPES public registry.