Dr. Mayumi Oka, MD
- Medicare services, 2024
- 296
- Medicare patients, 2024
- 297
- Industry payments
- $22,499
- Affiliated sites
- 2
- Medical groups
- 3
- Practice address
- 1515 N Madison Ave, Anderson, IN 46011
- Practice phone
- Call (765) 298-3300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Community Hospital Anderson
Anderson, Indiana
Find Dr. Oka'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. Mayumi Oka is a diagnostic radiologist in Anderson, Indiana
Dr. Oka practices at Community Hospital Anderson in Anderson, Indiana.
Dr. Oka's NPI, 1417902388, was assigned on May 22, 2006. Dr. Oka holds Indiana license 01060110.
- NPI
- 1417902388NPI Registry (opens in a new tab)
- NPI enumeration date
- May 22, 2006
- NPI status
- Active
- Practice phone
- (765) 298-3300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Mayumi Oka practices at Community Hospital Anderson in Anderson, Indiana
Dr. Oka's primary practice is Community Hospital Anderson, at 1515 N Madison Ave, Anderson, IN 46011 in Madison County. The practice phone is (765) 298-3300.
- Community Hospital Anderson1515 N Madison Ave, Anderson, IN 46011 · Madison CountyPhone(765) 298-3300
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mayumi Oka is affiliated with 3 sites of care and 3 medical groups
Dr. Oka's primary practice is Community Hospital Anderson in Anderson, Indiana. The medical group on file is Imaging Associates of Indiana. Dmand AI also links Dr. Oka to 2 more group practices and clinics and 2 medical groups, 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. Mayumi Oka's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Oka practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Community Hospital Anderson | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mayumi Oka is one of 663 diagnostic radiologists in Indiana
Diagnostic radiology is Dr. Oka's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Oka is licensed in Indiana.
Specialties and state licenses
- Diagnostic radiology, IndianaPrimary
Diagnostic radiologists near Dr. Oka
Counts of diagnostic radiologists 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. Mayumi Oka billed Medicare for 296 services in 2024
CMS data shows 296 Medicare services from Dr. Oka across 10 procedure codes in 2024, for 297 Medicare patients. Medicare paid $11,419 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Oka's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 2622024: 29613%
Dr. Oka compared with the Indiana median for diagnostic radiologists, 2024
- Dr. Oka
- Indiana median
- Medicare services
- 296vs 2,39288% below
- Medicare patients
- 297vs 1,71183% below
Medians across 639 diagnostic radiologists in Indiana with Dmand AI profiles that report each measure.
Dr. Oka'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. Mayumi Oka treated 297 Medicare patients in 2024, average age 76
CMS counts 297 Medicare patients who saw Dr. Oka in 2024. The largest group is 75 to 84, with 113 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 16% are also on Medicaid. Their average risk score is 1.78, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Dr. Oka's Medicare patients by age, 2024
Dr. Oka's Medicare patients by sex, 2024
- Women17158%
- Men12642%
Chronic conditions among Dr. Oka's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis60%
- Ischemic heart disease43%
- Depression40%
- Mood disorders40%
- Anxiety35%
- Chronic kidney disease35%
Share of Medicare patients with each condition. A patient can have several.
Source: Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
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Dr. Mayumi Oka received $22,499 in industry payments from 2016 to 2021
CMS Open Payments shows 45 general payments to Dr. Oka from 14 drug and device companies from 2016 to 2021. Gifts make up the largest share, 82% of the total. C. R. Bard, Inc. & Subsidiaries paid the most, $18,809.
General payments to Dr. Oka by program year, 2016 to 2021
General payments to Dr. Oka by kind, 2016 to 2021
- Gifts$18,37582%
- Food and beverage$2,51511%
- Travel and lodging$1,6097%
Companies that paid Dr. Oka the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mayumi Oka'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 | Medicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Mayumi Oka
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. Mayumi Oka's NPI number?
Dr. Mayumi Oka's NPI number is 1417902388. It was assigned on May 22, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mayumi Oka?
Dr. Mayumi Oka is a diagnostic radiologist in Anderson, Indiana. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Mayumi Oka practice?
Dr. Oka practices at 1515 N Madison Ave, Anderson, IN 46011. Dr. Oka's primary practice is Community Hospital Anderson in Anderson, Indiana. Dmand AI also links Dr. Oka to 2 group practices and clinics and 2 medical groups.
What is Dr. Mayumi Oka's office phone number?
The practice phone on file for Dr. Oka is (765) 298-3300.
What is Dr. Mayumi Oka's medical license number?
Dr. Oka holds Indiana license 01060110.
What medical group is Dr. Mayumi Oka part of?
Dr. Oka is linked to Imaging Associates of Indiana. Dmand AI links Dr. Oka to 2 more medical groups.
Does Dr. Mayumi Oka accept Medicare?
Yes. CMS data shows Dr. Oka billed Medicare for 296 services in 2024.
How many Medicare patients does Dr. Mayumi Oka see?
CMS counts 297 Medicare patients who saw Dr. Oka in 2024, with an average age of 76.
What services does Dr. Mayumi Oka bill to Medicare?
In 2024, Dr. Oka's most billed Medicare services were diagnostic imaging (70450), diagnostic imaging (72125) and diagnostic imaging (70553).
Has Dr. Mayumi Oka received payments from drug or device companies?
CMS Open Payments shows $22,499 in general payments to Dr. Oka from 14 companies from 2016 to 2021. The largest total came from C. R. Bard, Inc. & Subsidiaries.
How long has Dr. Mayumi Oka been practicing?
Dr. Oka's NPI was assigned in 2006.
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