Quick answers
- Does Gregg J. Reis accept Medicare assignment?
- Yes. Medicare's clinician data says Gregg J. Reis 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 Gregg J. Reis see?
- In 2024, CMS data shows 668 Original Medicare patients and 1,963 services for Gregg J. Reis. This counts Original Medicare only and measures volume, not quality.
- What is Gregg J. Reis's NPI number?
- 1134100167. 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 Gregg J. Reis, 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 | 668 |
|---|---|
| Services billed to Medicare | 1,963 |
| Different services or procedures | 59 |
| 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)614 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)342 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)329 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)158 services
- Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)103 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%
- Ischemic heart disease59%
- Arthritis48%
- Diabetes40%
- Chronic kidney disease36%
Hospitals where Gregg J. Reis works
Medicare's Facility Affiliation Data lists Gregg J. Reis 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.
- UPMC HanoverHanover, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390233
- UPMC MemorialYork, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390101
- UPMC Pinnacle HospitalsHarrisburg, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390067
- WellSpan York HospitalYork, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390046
Practice locations
Addresses where Gregg J. Reis is enrolled with Medicare (CMS data updated October 2, 2026).
- 1600 6th AveYork, PA 17403 (717) 849‑5576
- 310 Stock St, Suite 3Hanover, PA 17331 (717) 637‑1738
Group practices
Medicare enrollment lists Gregg J. Reis as a member of these groups (CMS data updated October 2, 2026).
- Pinnacle Health Medical Services1,019 clinicians in the group
- Pinnacle Health Regional Physicians154 clinicians in the group
Specialties
Find other Interventional Cardiology doctors in Pennsylvania →
Other interventional cardiologists in York
Clinicians with the same Medicare primary specialty in York, PA — not a recommendation.
Other clinicians in Pinnacle Health Medical Services
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Js Weill Medical College, Cornell University |
| Graduation year | 1983 (43 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1134100167 |
| 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