Dr. Julie J. Koo, MD
- Medicare services, 2024
- 1,818
- Medicare patients, 2024
- 1,205
- Hospital affiliations
- 5
- Industry payments
- $163
- Medical groups
- 3
- Practice address
- 5301 E Huron River Dr, Ann Arbor, MI 48105
- Practice phone
- Call (734) 712-3456
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Trinity Health Ann Arbor
Ann Arbor, Michigan
Find Dr. Koo'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. Julie J. Koo is a diagnostic radiologist in Ann Arbor, Michigan
Dr. Koo practices at Trinity Health Ann Arbor in Ann Arbor, Michigan.
Dr. Koo's NPI, 1124330303, was assigned on July 5, 2010. Dr. Koo graduated from University Of Michigan Medical School in 2009. Dr. Koo holds California license A135398.
- NPI
- 1124330303NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4284850884
- NPI enumeration date
- July 5, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (734) 712-3456
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Julie J. Koo practices at Trinity Health Ann Arbor in Ann Arbor, Michigan
Dr. Koo's primary practice is Trinity Health Ann Arbor, at 5301 E Huron River Dr, Ann Arbor, MI 48105 in Washtenaw County. The practice phone is (734) 712-3456.
- Trinity Health Ann Arbor5301 E Huron River Dr, Ann Arbor, MI 48105 · Washtenaw CountyPhone(734) 712-3456
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Julie J. Koo is affiliated with 8 sites of care and 3 medical groups
Dr. Koo's primary practice is Trinity Health Ann Arbor in Ann Arbor, Michigan. Dr. Koo is also affiliated with Trinity Health Ann Arbor Hospital. The medical group on file is Huron Valley Radiology. Dmand AI also links Dr. Koo to 4 more hospitals, 2 group practices and clinics and 2 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Julie J. Koo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Koo practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Trinity Health Ann Arbor | Available with a free account |
| +7 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Julie J. Koo is one of 1,181 diagnostic radiologists in Michigan
Diagnostic radiology is Dr. Koo's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Koo is board certified in diagnostic radiology by the American Board of Radiology. Dmand AI has Dr. Koo's licenses on file in 5 states: California, Michigan, Indiana, Ohio and Pennsylvania.
Specialties and state licenses
- Diagnostic radiology, CaliforniaPrimary
- Michigan license
- Indiana license
- Ohio license
- Pennsylvania license
Diagnostic radiologists near Dr. Koo
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. Julie J. Koo billed Medicare for 1,818 services in 2024
CMS data shows 1,818 Medicare services from Dr. Koo across 21 procedure codes in 2024, for 1,205 Medicare patients. Medicare paid $57,998 for them.
Dr. Koo's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 2,6752024: 1,72336%
- Other services
- 2023: 1232024: 9523%
- Surgery
- 2023: 342024: 0100%
Where Dr. Koo's Medicare services took place, 2024
- In an office26615%
- In a facility1,55285%
Dr. Koo compared with the Michigan median for diagnostic radiologists, 2024
- Dr. Koo
- Michigan median
- Medicare services
- 1,818vs 1,65810% above
- Medicare patients
- 1,205vs 1,3017% below
Medians across 1,132 diagnostic radiologists in Michigan with Dmand AI profiles that report each measure.
Dr. Koo'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.
Need commercial claims for Dr. Koo?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Koo and other diagnostic radiologists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Julie J. Koo treated 1,205 Medicare patients in 2024, average age 74
CMS counts 1,205 Medicare patients who saw Dr. Koo in 2024. The largest group is 65 to 74, with 580 patients. 71% of them have high blood pressure, and 69% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.38, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Koo's median patient age at 61, with 89% women.
Dr. Koo's Medicare patients by age, 2024
Dr. Koo's Medicare patients by sex, 2024
- Women99382%
- Men21218%
Chronic conditions among Dr. Koo's Medicare patients, 2024
- High blood pressure71%
- High cholesterol69%
- Arthritis50%
- Mood disorders31%
- Anxiety29%
- Depression28%
- Diabetes28%
- Ischemic heart disease28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Koo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women89%
- Men11%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Julie J. Koo takes part in Medicare
Dr. Koo 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. Julie J. Koo received $163 in industry payments from 2016 to 2019
CMS Open Payments shows 3 general payments to Dr. Koo from 2 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Bayer HealthCare Pharmaceuticals Inc. paid the most, $145.
General payments to Dr. Koo by program year, 2016 to 2019
Companies that paid Dr. Koo the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Julie J. Koo graduated from University Of Michigan Medical School
Dr. Koo graduated from University Of Michigan Medical School in 2009.
- Medical school
- Board certified in diagnostic radiology
Source: Dmand AI Professional Profile Data
Dr. Julie J. Koo accepts plans from 6 insurance carriers
Dr. Koo is in network with 6 carriers, including Elevance, Excellus BlueCross BlueShield and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Elevance
- Excellus BlueCross BlueShield
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- Regence Health Plans
- CMS Medicare
Plan types Dr. Koo accepts, by number of carriers
- Medicare5
- PPO5
- EPO2
- POS2
- HMO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Julie J. Koo'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 DataDmand AI Org Hierarchy 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) |
| 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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Julie J. Koo
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. Julie J. Koo's NPI number?
Dr. Julie J. Koo's NPI number is 1124330303. It was assigned on July 5, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Julie J. Koo?
Dr. Julie J. Koo is a diagnostic radiologist in Ann Arbor, Michigan. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Julie J. Koo practice?
Dr. Koo practices at 5301 E Huron River Dr, Ann Arbor, MI 48105. Dr. Koo's primary practice is Trinity Health Ann Arbor in Ann Arbor, Michigan. Dmand AI also links Dr. Koo to 4 hospitals, 2 group practices and clinics and 2 medical groups.
What is Dr. Julie J. Koo's office phone number?
The practice phone on file for Dr. Koo is (734) 712-3456.
What is Dr. Julie J. Koo's medical license number?
Dr. Koo holds California license A135398, one of the licenses on file in 5 states.
Which states has Dr. Julie J. Koo been licensed in?
Dmand AI has state licenses on file for Dr. Koo in California (2015 to 2026), Michigan (2022 to 2028), Indiana (2022 to 2025), Ohio (2015 to 2016) and Pennsylvania (2010 to 2016).
Which hospitals is Dr. Julie J. Koo affiliated with?
Dr. Koo is affiliated with Trinity Health Ann Arbor Hospital. Dmand AI links Dr. Koo to 4 more hospitals.
What medical group is Dr. Julie J. Koo part of?
Dr. Koo is linked to Huron Valley Radiology. Dmand AI links Dr. Koo to 2 more medical groups.
Does Dr. Julie J. Koo accept Medicare?
Yes. CMS data shows Dr. Koo billed Medicare for 1,818 services in 2024, and Dr. Koo accepts Medicare assignment.
How many Medicare patients does Dr. Julie J. Koo see?
CMS counts 1,205 Medicare patients who saw Dr. Koo in 2024, with an average age of 74.
Show 6 more questionsShow fewer questions
Is Dr. Julie J. Koo board certified?
Yes. Dr. Koo is board certified in diagnostic radiology by the American Board of Radiology.
What services does Dr. Julie J. Koo bill to Medicare?
In 2024, Dr. Koo's most billed Medicare services were radiation oncology (77063), radiation oncology (77067) and diagnostic imaging (74177).
Where did Dr. Julie J. Koo go to medical school?
Dr. Koo graduated from University Of Michigan Medical School in 2009.
Has Dr. Julie J. Koo received payments from drug or device companies?
CMS Open Payments shows $163 in general payments to Dr. Koo from 2 companies from 2016 to 2019. The largest total came from Bayer HealthCare Pharmaceuticals Inc.
How long has Dr. Julie J. Koo been practicing?
Dr. Koo graduated from medical school in 2009, 17 years ago.
What insurance does Dr. Julie J. Koo accept?
Dr. Koo is in network with 6 carriers, including Elevance, Excellus BlueCross BlueShield and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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