John C. Hart Jr., MD

Medicare activity in 2024

Official CMS public-use data for John C. Hart Jr., 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.

Most frequent services

1. Established patient complete exam of visual system (92014)758 services
2. Established patient problem focused exam of visual system (92012)686 services
3. Imaging of optic nerve (92133)261 services
4. Imaging of retina (92134)197 services
5. Measurement of corneal curvature and depth of eye (92136)183 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%
• Arthritis41%
• Ischemic heart disease30%
• Diabetes28%
• Chronic kidney disease19%

Hospitals where John C. Hart Jr. works

Medicare's Facility Affiliation Data lists John C. Hart Jr. 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.

• Beaumont Hospital Royal OakRoyal Oak, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230130

Practice locations

Addresses where John C. Hart Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

• 27555 Farmington Rd, Suite 130Farmington Hills, MI 48334 (248) 855‑1020
• 28100 Grand River AveFarmington Hills, MI 48336
• 3601 W 13 Mile RdRoyal Oak, MI 48073
• 3601 W 13 Mile Rd Ec, Beaumont Emergency Services RoRoyal Oak, MI 48073 (248) 898‑5058

Group practices

Medicare enrollment lists John C. Hart Jr. as a member of these groups (CMS data updated October 2, 2026).

• Beaumont Medical Group- Specialty Services847 clinicians in the group
• Associates in Ophthalmology PC2 clinicians in the group

Specialties

• Ophthalmologyprimary

Find other Ophthalmology doctors in Michigan →

Other ophthalmologists in Farmington Hills

Clinicians with the same Medicare primary specialty in Farmington Hills, MI — not a recommendation.

• Viet Chau, MD
• Lina Nagia
• Amer Alsoudi, MD
• Chirag Gupta, MD
• Matthew Tukel, MD
• Lydia Sauer, MD
• Tom Obertynski, MD
• Asad Loya, MD

All ophthalmologists in Farmington Hills →

Other clinicians in Beaumont Medical Group- Specialty Services

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Aravindan V. Jeyarajasingam, MD
• Daniel Shelden, DO
• Jerome M. Wiater, MD
• Samir Dabbous, MD
• Karie L. Llewellyn, NP
• Megan E. Skok, PA

Clinician information

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

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians