DR. JULIE KOO M.D.
NPI 1124330303
Radiology - Diagnostic Radiology in Sacramento, CA

Q: What is Julie Koo's NPI number?

The NPI number for Julie Koo is 1124330303. It was assigned to this individual provider in the NPPES registry on July 5, 2010.

Q: What is Julie Koo's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Q: When was this NPI record last updated?

The NPPES record for Julie Koo was last updated on July 8, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.

Active since July 05, 2010PECOS EnrolledAccepts Medicare Assignment

3161 L ST, SACRAMENTO, CA 95816(916) 453-9999(916) 739-1099 Get Directions Write a Review

NPPES record last updated: July 8, 2015. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Julie Koo M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JULIE KOO M.D. (NPI 1124330303) is an individual diagnostic radiology provider in Sacramento, California, licensed in California (A135398) and active in the NPI registry since July 2010. She is enrolled in Medicare PECOS, is affiliated with St Joe Mercy Hospital System Livonia, and is a graduate of University Of Michigan Medical School (2009).

NPPES Registry Identity

NPI1124330303

Entity TypeIndividualFemale

Primary Taxonomy2085R0202X

Provider Legal NameDR. JULIE KOOCredential: M.D.

Location Address3161 L STSacramento, CA 95816-5234

Mailing Address10470 Old Placerville Rd, Suite 100Sacramento, CA 95827-2539 · (800) 470-0071

Phone(916) 453-9999

Fax(916) 739-1099

Sole ProprietorYes

Medical School CMSUniversity Of Michigan Medical SchoolGraduated 2009

Enumeration DateJuly 5, 2010

Last NPPES UpdateJuly 8, 2015

✔ NPI 1124330303 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

Licenses✔ Licensed in CA · A135398✔ Licensed in PA · MT197059

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

3161 L ST, Sacramento, CA 95816

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource.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

Dr. Julie Koo 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.

PECOS PAC ID4284850884

PECOS Enrollment IDI20220714000638

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Julie Koo reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

X-Ray Consultants Inc

1,865 mi

Diagnostic Radiology

121 S SAINT LOUIS BLVD
South Bend, IN 46617

Reassigned Medicare billing, Michigan enrollment
73 clinicians in this Medicare group

NPI 1770536815 (574) 233-3123

Huron Valley Radiology PC

1,994 mi

Diagnostic Radiology

5333 MCAULEY DR, SUITE 6016
Ypsilanti, MI 48197

Reassigned Medicare billing, Michigan enrollment
85 clinicians in this Medicare group

NPI 1659398519 (734) 712-8350

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 24

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.

Screening 3d breast mammography 77063

Screening 3D breast mammography is a procedure that uses low-dose X-rays to create detailed images of the breast. This allows for early detection of any unusual changes or growths. It's a non-invasive, outpatient procedure that typically takes about 30 minutes.

382 services382 patients

Screening mammography 77067

Screening mammography is a preventative measure that uses low-dose X-rays to take images of the chest area. It's a key tool in early detection of abnormalities, helping to identify issues before they become symptomatic. It is recommended annually for certain age groups.

382 services382 patients

Screening 3d breast mammography 77063

124 services124 patients

Screening mammography 77067

124 services124 patients

Ct scan of abdomen and pelvis with contrast 74177

A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.

105 services103 patients

X-ray of chest, 1 view 71045

A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.

104 services97 patients

Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) G0279

Diagnostic digital breast tomosynthesis is a 3D imaging test that allows doctors to examine your breast tissue layer by layer. It's performed on one or both sides. It helps in detecting abnormalities more accurately. It's often done in addition to other tests.

95 services95 patients

Diagnostic mammography of 1 breast 77065

Diagnostic mammography of 1 breast is a detailed imaging test that allows doctors to closely examine a specific area in the breast. It's often used when a routine screening reveals an abnormality. This test can help identify any unusual changes or issues.

65 services63 patients

Limited ultrasound scan of 1 breast 76642

A limited ultrasound scan of one breast is a non-invasive imaging test. It uses sound waves to create pictures of the inside of your breast. It helps identify any unusual growths or changes. It's safe, quick, and typically painless.

55 services55 patients

Diagnostic mammography of both breasts 77066

Diagnostic mammography involves using special imaging technology to capture detailed images of both breasts. This procedure helps in identifying any unusual changes or abnormalities. It's a crucial step in ensuring breast health and early detection of potential issues.

55 services55 patients

Ct scan of chest without contrast 71250

A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.

42 services42 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

40 services40 patients

Ct scan of chest with contrast 71260

A CT scan of the chest with contrast is an imaging procedure. A special dye (contrast) is used to highlight specific areas in your body, providing clearer pictures of your chest. This helps in diagnosing conditions related to your lungs, heart, and other chest structures.

39 services39 patients

Ct scan of blood vessels of chest with contrast 71275

A CT scan of the chest with contrast is a non-invasive imaging test. It uses X-rays and a special dye to get detailed images of your blood vessels in the chest. This helps in diagnosing conditions related to heart and lungs.

38 services38 patients

Ct scan of abdomen and pelvis without contrast 74176

A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.

32 services31 patients

X-ray of abdomen, 1 view 74018

An X-ray of the abdomen, 1 view, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the structures in your abdomen, such as the stomach, liver, and intestines. This can help identify issues like blockages, infections, or injuries.

29 services27 patients

X-ray of chest, 2 views 71046

18 services18 patients

X-ray of foot, minimum of 3 views 73630

An X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.

17 services17 patients

Limited ultrasound scan of abdomen 76705

A limited ultrasound scan of the abdomen is a non-invasive imaging test. It uses sound waves to produce images of the abdominal organs such as the liver, gallbladder, spleen, pancreas, and kidneys. This helps to identify any abnormalities or issues.

15 services15 patients

Mri scan of both breasts 77049

An MRI scan of both breasts is a non-invasive procedure using magnetic fields and radio waves to create detailed images of your chest area. This aids in detecting any abnormalities, ensuring your health and well-being.

13 services13 patients

X-ray of pelvis, 1-2 views 72170

An X-ray of the pelvis, 1-2 views, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the lower part of your torso. These images help to detect any abnormalities or injuries in your hip bones and surrounding structures.

11 services11 patients

Mri scan of abdomen before and after contrast 74183

An MRI scan of the abdomen before and after contrast provides detailed images of your abdominal organs. Initially, images are taken without a contrast agent. Then, a safe dye is administered, usually via an IV, to highlight certain areas, giving a clearer picture to help diagnose various conditions.

11 services11 patients

Ultrasound scan of head and neck soft tissue 76536

An ultrasound scan of the head and neck soft tissue is a non-invasive procedure that uses sound waves to create images of the soft tissues in these areas. It helps identify any abnormalities or issues, such as tumors, cysts, or infections. It's painless and doesn't involve radiation.

11 services11 patients

Complete ultrasound scan behind abdominal cavity 76770

A complete ultrasound scan behind the abdominal cavity is a non-invasive imaging procedure. It uses sound waves to create pictures of the structures and organs located at the back of your abdomen. It helps in diagnosing health conditions and monitoring ongoing treatments.

11 services11 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Joe Mercy Hospital System Livonia

Acute Care Hospitals · Livonia, MI

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number230002

Location36475 Five Mile RoadLivonia, MI 48154 · Wayne County

Emergency services Birthing friendly

Trinity Health Oakland Hospital

Acute Care Hospitals · Pontiac, MI

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number230029

Location44405 Woodward AvePontiac, MI 48341 · Oakland County

Emergency services Birthing friendly

Saint Joseph Mercy Livingston Hospital

Acute Care Hospitals · Howell, MI

5/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number230069

Location620 Byron RdHowell, MI 48843 · Livingston County

Emergency services

Trinity Health Ann Arbor Hospital

Acute Care Hospitals · Ann Arbor, MI

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number230156

Location5301 E Huron River DrAnn Arbor, MI 48106 · Washtenaw County

Emergency services Birthing friendly

Chelsea Hospital

Acute Care Hospitals · Chelsea, MI

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number230259

Location775 S Main StChelsea, MI 48118 · Washtenaw County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95816 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$92.61 typical visit price

range $60.44 – $180.85

Typical copayment $23.15 (range $15.11 – $45.21)

Most-billed visit code 99203

Established Patient

$75.03 typical visit price

range $19.88 – $148.15

Typical copayment $18.75 (range $4.97 – $37.03)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JAMES J STEIDLER MD

Radiology (Neuroradiology)