Dr. James E. Ong, MD
- Medicare services, 2024
- 199
- Medicare patients, 2024
- 146
- Part D claims, 2020
- 35
- Hospital affiliations
- 1
- Industry payments
- $351
- Practice address
- 2001 W 86th St, Indianapolis, IN 46260
- Practice phone
- Call (317) 338-2172
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ascension St Vincent Hospital- Indianapolis
Indianapolis, Indiana
Find Dr. Ong's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. James E. Ong is an internist in Indianapolis, Indiana
Dr. Ong practices at Ascension St Vincent Hospital- Indianapolis in Indianapolis, Indiana.
Dr. Ong's NPI, 1649289570, was assigned on August 7, 2006. Dr. Ong graduated from Indiana University School of Medicine in 1997. Dr. Ong holds Indiana license 01049051A.
- NPI
- 1649289570NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7810946498
- NPI enumeration date
- August 7, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (317) 338-2172
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. James E. Ong practices at Ascension St Vincent Hospital- Indianapolis in Indianapolis, Indiana
Dr. Ong's primary practice is Ascension St Vincent Hospital- Indianapolis, at 2001 W 86th St, Indianapolis, IN 46260 in Marion County. The practice phone is (317) 338-2172.
- Ascension St Vincent Hospital- Indianapolis2001 W 86th St, Indianapolis, IN 46260 · Marion CountyPhone(317) 338-2172
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. James E. Ong is affiliated with 4 sites of care and 2 medical groups
Dr. Ong's primary practice is Ascension St Vincent Hospital- Indianapolis in Indianapolis, Indiana. Dr. Ong is also affiliated with IU Health Ball Memorial Hospital. The medical group on file is IU Health Medical Group. Dmand AI also links Dr. Ong to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. James E. Ong's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ong practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ascension St Vincent Hospital- Indianapolis | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James E. Ong is one of 1,987 internists in Indiana
Internal medicine is Dr. Ong's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Ong is licensed in Indiana.
Specialties and state licenses
- Internal medicine, IndianaPrimary
Internists near Dr. Ong
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. James E. Ong billed Medicare for 199 services in 2024
CMS data shows 199 Medicare services from Dr. Ong across 6 procedure codes in 2024, for 146 Medicare patients. Medicare paid $11,662 for them.
Dr. Ong's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2072024: 18710%
- Other services
- 2023: 02024: 12
Where Dr. Ong's Medicare services took place, 2024
- In an office13166%
- In a facility6834%
Dr. Ong compared with the Indiana median for internists, 2024
- Dr. Ong
- Indiana median
- Medicare services
- 199vs 52062% below
- Medicare patients
- 146vs 21231% below
- Part D claims
- 35vs 15978% below
Medians across 1,948 internists in Indiana with Dmand AI profiles that report each measure.
Dr. Ong's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James E. Ong treated 146 Medicare patients in 2024, average age 73
CMS counts 146 Medicare patients who saw Dr. Ong in 2024. The largest group is 75 to 84, with 56 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 32% are also on Medicaid. Their average risk score is 1.93, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Ong's median patient age at 62, with 51% women.
Dr. Ong's Medicare patients by age, 2024
Dr. Ong's Medicare patients by sex, 2024
- Women7652%
- Men7048%
Chronic conditions among Dr. Ong's Medicare patients, 2024
- High blood pressure75%
- High cholesterol74%
- Diabetes44%
- Heart failure44%
- Mood disorders43%
- Arthritis42%
- Ischemic heart disease42%
- Chronic kidney disease39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ong's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. James E. Ong wrote 35 Medicare Part D claims in 2020
In 2020, Dr. Ong wrote 35 Medicare Part D claims. Every claim was for a generic drug. They cover 3 drugs, with $421 in total drug cost. In 2019, CMS named 91 claims across 7 drugs.
Dr. Ong's most prescribed drugs by claims, 2020
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2019 to 2020
- 2019
- 2020
- Claims for drugs CMS names
- 2019: 912020: 3562%
Drugs named by CMS: 3 in 2020, 7 in 2019.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. James E. Ong takes part in Medicare
Dr. Ong accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. James E. Ong received $351 in industry payments from 2016 to 2021
CMS Open Payments shows 12 general payments to Dr. Ong from 8 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $137.
General payments to Dr. Ong by program year, 2016 to 2021
Companies that paid Dr. Ong the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. James E. Ong graduated from Indiana University School of Medicine
Dr. Ong graduated from Indiana University School of Medicine in 1997.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. James E. Ong's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. James E. Ong
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. James E. Ong's NPI number?
Dr. James E. Ong's NPI number is 1649289570. It was assigned on August 7, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. James E. Ong?
Dr. James E. Ong is an internist in Indianapolis, Indiana. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. James E. Ong practice?
Dr. Ong practices at 2001 W 86th St, Indianapolis, IN 46260. Dr. Ong's primary practice is Ascension St Vincent Hospital- Indianapolis in Indianapolis, Indiana. Dmand AI also links Dr. Ong to 2 group practices and clinics and 1 medical group.
What is Dr. James E. Ong's office phone number?
The practice phone on file for Dr. Ong is (317) 338-2172.
What is Dr. James E. Ong's medical license number?
Dr. Ong holds Indiana license 01049051A.
Which hospitals is Dr. James E. Ong affiliated with?
Dr. Ong is affiliated with IU Health Ball Memorial Hospital.
What medical group is Dr. James E. Ong part of?
Dr. Ong is linked to IU Health Medical Group. Dmand AI links Dr. Ong to 1 more medical group.
Does Dr. James E. Ong accept Medicare?
Yes. CMS data shows Dr. Ong billed Medicare for 199 services in 2024, and Dr. Ong accepts Medicare assignment.
How many Medicare patients does Dr. James E. Ong see?
CMS counts 146 Medicare patients who saw Dr. Ong in 2024, with an average age of 73.
What services does Dr. James E. Ong bill to Medicare?
In 2024, Dr. Ong's most billed Medicare services were office visit, established patient (99213), hospital inpatient care (99222) and hospital inpatient care (99232).
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Where did Dr. James E. Ong go to medical school?
Dr. Ong graduated from Indiana University School of Medicine in 1997.
What drugs does Dr. James E. Ong prescribe most?
In 2020 Medicare Part D data, Dr. Ong's most prescribed drugs by claims were Lactulose, Meloxicam and Ketoconazole.
Has Dr. James E. Ong received payments from drug or device companies?
CMS Open Payments shows $351 in general payments to Dr. Ong from 8 companies from 2016 to 2021. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. James E. Ong been practicing?
Dr. Ong graduated from medical school in 1997, 29 years ago.
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