Quick answers
- Does John R. Minarcik accept Medicare assignment?
- Yes. Medicare's clinician data says John R. Minarcik 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 John R. Minarcik see?
- In 2024, CMS data shows 520 Original Medicare patients and 12,919 services for John R. Minarcik. This counts Original Medicare only and measures volume, not quality.
- What is John R. Minarcik's NPI number?
- 1750427555. 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 John R. Minarcik, 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 | 520 |
|---|---|
| Services billed to Medicare | 12,919 |
| Different services or procedures | 45 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Injection, faricimab-svoa, 0.1 mg (J2777)8,220 services
- Imaging of retina (92134)1,119 services
- Established patient complete exam of visual system (92014)1,022 services
- Extended exam of the back part of the eye with optic nerve drawing (92202)761 services
- Injection, aflibercept, 1 mg (J0178)620 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 cholesterol68%
- High blood pressure65%
- Arthritis38%
- Diabetes35%
- Ischemic heart disease21%
- Chronic kidney disease19%
Hospitals where John R. Minarcik works
Medicare's Facility Affiliation Data lists John R. Minarcik 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.
- Inova Fair Oaks HospitalFairfax, VA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 490101
Practice locations
Addresses where John R. Minarcik is enrolled with Medicare (CMS data updated October 2, 2026).
- 10530 Linden Lake Plz, Suite 305Manassas, VA 20109 (703) 257‑9270
- 8270 Willow Oaks Corporate Dr, Suite 600Fairfax, VA 22031 (703) 698‑9335
Group practices
Medicare enrollment lists John R. Minarcik as a member of this group (CMS data updated October 2, 2026).
- The Retina Group of Washington PLLC84 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Manassas
Clinicians with the same Medicare primary specialty in Manassas, VA — not a recommendation.
Other clinicians in The Retina Group of Washington PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Uniformed Services Uhs Fe Hebert School Of Med |
| Graduation year | 2000 (26 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1750427555 |
| 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