Dr. William Ma , MD
Pediatrics • Indianapolis, IN
Eskenazi Health Center W 38th St
Indianapolis, IN 462542919
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
Practice Location & Contact Primary Location
Eskenazi Health Center W 38th St
Indianapolis, IN 462542919
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Pediatrics: NPPES taxonomy is a reported classification, not proof of board certification.
Open Payments general payments, program year 2023
All general payments: $79.62 across 4 records.
By nature of payment
- Food and Beverage: $79.62 across 4 records.
Reporting-company totals (3 largest of 4)
- Corium, LLC: $27.50 across 1 record.
- Dentsply Sirona Inc: $20.12 across 1 record.
- Gilead Sciences, Inc.: $18.93 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2023 (published June 30, 2026).
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians, CMS release of October 2, 2026; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.
Enrolled in Medicare (PECOS)
Dr. Ma has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Ma as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Indianapolis and Indiana
376 active clinicians are listed under Pediatrics with a practice address in Indianapolis, IN (1,146 in Indiana).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Indianapolis
0% of these 376 clinicians have the CMS telehealth indicator.
11.2% of these 376 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $34.49 in 2019 to $79.62 in 2023.
- 2019: $34.49
- 2020: $25.91
- 2021: $24.22
- 2022: $59.98
- 2023: $79.62
Sources: CMS Open Payments (2023), CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2023 (payments made January 1 – December 31, 2023): fewer than 11 records totaling $79.62.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Corium, LLC |
Food and Beverage
In-kind items and services
|
Azstarys | General | $27.50 |
| Dentsply Sirona Inc |
Food and Beverage
In-kind items and services
|
SureSmile | General | $20.12 |
| Gilead Sciences, Inc. |
Food and Beverage
In-kind items and services
|
— | General | $18.93 |
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
|
BEXSERO | General | $13.07 |
Source: CMS Open Payments, program year 2023, released June 30, 2026.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2026-04-06NUCC Taxonomy Code: 208000000X
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
NUCC Taxonomy Code: 207LC0200X
An anesthesiologist, who specializes in critical care medicine diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
NUCC Taxonomy Code: 2080P0203X
A pediatrician expert in advanced life support for children from the term or near-term neonate to the adolescent. This competence extends to the critical care management of life-threatening organ system failure from any cause in both medical and surgical patients and to the support of vital physiological functions. This specialist may have administrative responsibilities for intensive care units and also facilitates patient care among other specialists.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PEDIATRIC MEDICINE
I20041119000656
IN
3476518382
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Dentist
Doctor of Dental Medicine
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Internal Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Psychiatric/Mental Health
Master of Science in Nursing, RNPMHNPBC
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at ESKENAZI HEALTH CENTER W 38TH ST, INDIANAPOLIS, IN 462542919 (Tel: 3178803838)
Anesthesiology (license number reported to NPPES: IN 01059342)
Registered at PO BOX 637764, CINCINNATI, OH 452637764 (Tel: 3172741201)
Pediatrics (license number reported to NPPES: IN 01059342)
NPI status registered as active in NPPES database
Registered at 705 RILEY HOSPITAL DR, ROC 4270, INDIANAPOLIS, IN 462025109 (Tel: 3172787738)
Registered at PO BOX 1026, INDIANAPOLIS, IN 462061026 (Tel: 3172741201)
Recorded as WILLIAM MA, MD
Anesthesiology (license number reported to NPPES: IN 01059342)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Pediatrics Specialists in Indianapolis
- Dr. Audrey Wehr Dowland, MD
- Dr. Leah Stalnaker, MD
- Dr. Corissa Dionisio, MD
- Dr. Haroon Ali, MD
- Dr. Aaron Watters, MD
- Dr. Benjamin Weiner, MD
Mailing Address
Po Box 637764
Cincinnati, OH 452637764
Phone: 3172741201