Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Justin Allan Gross, MD

Individual provider Diagnostic Radiology Physician · NPI 1558676817

Dr. Justin Allan Gross, MD practises Diagnostic Radiology in Harvey, Illinois. Qualified in 2010, 16 years ago. Practices with Good Samaritan Regional Health Center, a 155-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Illinois, Minnesota and New York.

Years since qualifying
16
Licensed in
IL, MN, NY
In the registry since
2010
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

71 W 156th St Ste 110
Harvey, IL 60426-4267
Phone: (618) 319-5700
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 927 Broadway St, Quincy, IL 62301-2719 — (217) 223-8400
  • 4800 Maine St, Quincy, IL 62305-5875 — (217) 223-8400
  • 100 Medical Dr, Hannibal, MO 63401-6877 — (217) 223-8400

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence 335607 (NY)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 036174974 (IL)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 63687 (MN)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1558676817
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 11, 2010
Last updated in NPPESFebruary 26, 2026
Certification dateFebruary 26, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice Good Samaritan Regional Health Center — 155 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations7 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients640
Services billed 2,956 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Good Samaritan Regional Health Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 155 clinicians in the practice; 12 are shown here.

Other providers in Harvey