Quick answers
- Does Justin Shaya accept Medicare assignment?
- Yes. Medicare's clinician data says Justin Shaya 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 Shaya see?
- In 2024, CMS data shows 314 Original Medicare patients and 1,197 services for Justin Shaya. This counts Original Medicare only and measures volume, not quality.
- What is Justin Shaya's NPI number?
- 1467830489. 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 Shaya, 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 | 314 |
|---|---|
| Services billed to Medicare | 1,197 |
| Different services or procedures | 23 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)287 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)233 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)232 services
- Telephone medical discussion with physician, 11-20 minutes (99442)81 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)59 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 cholesterol74%
- Arthritis53%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)45%
- Anxiety35%
- Chronic kidney disease35%
Hospitals where Justin Shaya works
Medicare's Facility Affiliation Data lists Justin Shaya 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.
- Chelsea HospitalChelsea, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230259
- St Joe Mercy Hospital System LivoniaLivonia, MI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 230002
- Trinity Health Ann Arbor HospitalAnn Arbor, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230156
- Trinity Health Livingston HospitalBrighton, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230069
- Trinity Health Oakland HospitalPontiac, MI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 230029
Practice locations
Addresses where Justin Shaya is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 11; the Medicare profile lists all.
- 128 Van Buren StChelsea, MI 48118 (734) 475‑8677
- 14555 Levan RdLivonia, MI 48154
- 2305 Genoa Bus Park DrBrighton, MI 48114
- 36475 5 Mile RdLivonia, MI 48154 (734) 583‑9125
- 44428 Woodward Ave, Suite 102Pontiac, MI 48341 (734) 712‑8700
Group practices
Medicare enrollment lists Justin Shaya as a member of this group (CMS data updated October 2, 2026).
- Iha Health Services Corporation1,168 clinicians in the group
Specialties
- Internal Medicineprimary
- Hematology/Oncologyalso
Other internal medicine doctors in Chelsea
Clinicians with the same Medicare primary specialty in Chelsea, MI — not a recommendation.
Other clinicians in Iha Health Services Corporation
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) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1467830489 |
| 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