Quick answers
- Does Justin J. Guan accept Medicare assignment?
- Yes. Medicare's clinician data says Justin J. Guan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Justin J. Guan see?
- In 2024, CMS data shows 232 Original Medicare patients and 733 services for Justin J. Guan. This counts Original Medicare only and measures volume, not quality.
- What is Justin J. Guan's NPI number?
- 1578945432. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Justin J. Guan, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 232 |
|---|---|
| Services billed to Medicare | 733 |
| Different services or procedures | 71 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)102 services
- Ultrasonic guidance for blood vessel access (76937)79 services
- Review by radiologist of additional artery image (75774)77 services
- Fluoroscopic guidance for insertion or removal of central vein access device (77001)54 services
- Ct scan of blood vessels of abdomen and pelvis with contrast (74174)46 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease56%
- Arthritis49%
- Ischemic heart disease48%
- Diabetes41%
Hospitals where Justin J. Guan works
Medicare's Facility Affiliation Data lists Justin J. Guan at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Cleveland ClinicCleveland, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360180
- Cleveland Clinic Avon HospitalAvon, OH · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 360364
- Fairview HospitalCleveland, OH · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 360077
- Hillcrest HospitalMayfield Heights, OH · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 360230
- Marymount HospitalGarfield Heights, OH · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 360143
Practice locations
Addresses where Justin J. Guan is enrolled with Medicare (CMS data updated October 2, 2026).
- 1740 Cleveland RdWooster, OH 44691 (330) 287‑4500
- 9500 Euclid AveCleveland, OH 44195 (216) 444‑6116
Group practices
Medicare enrollment lists Justin J. Guan as a member of these groups (CMS data updated October 2, 2026).
- Cleveland Clinic7,090 clinicians in the group
- Wooster Clinic LLC299 clinicians in the group
Specialties
- Interventional Radiologyprimary
Other interventional radiologists in Wooster
Clinicians with the same Medicare primary specialty in Wooster, OH — not a recommendation.
Other clinicians in Cleveland Clinic
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2015 (11 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578945432 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians