Quick answers
- Does Garrie J. Haas accept Medicare assignment?
- Yes. Medicare's clinician data says Garrie J. Haas 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 Garrie J. Haas see?
- In 2024, CMS data shows 1,425 Original Medicare patients and 2,107 services for Garrie J. Haas. This counts Original Medicare only and measures volume, not quality.
- What is Garrie J. Haas's NPI number?
- 1104858018. 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 Garrie J. Haas, 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 | 1,425 |
|---|---|
| Services billed to Medicare | 2,107 |
| Different services or procedures | 16 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)1,590 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)110 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)99 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)68 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)60 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 disease55%
- Heart failure53%
- Atrial fibrillation53%
- Arthritis52%
Hospitals where Garrie J. Haas works
Medicare's Facility Affiliation Data lists Garrie J. Haas 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.
- Adena Regional Medical CenterChillicothe, OH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 360159
- Holzer Medical CenterGallipolis, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360054
- Knox Community HospitalMount Vernon, OH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 360040
- Ohio State University State Health SystemColumbus, OH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 360085
Practice locations
Addresses where Garrie J. Haas is enrolled with Medicare (CMS data updated October 2, 2026).
- 3900 Stoneridge LnDublin, OH 43017 (614) 366‑5001
Group practices
Medicare enrollment lists Garrie J. Haas as a member of this group (CMS data updated October 2, 2026).
- OSU Internal Medicine LLC1,161 clinicians in the group
Specialties
Find other Advanced Heart Failure and Transplant Cardiology doctors in Ohio →
Other heart failure and transplant cardiologists in Dublin
Clinicians with the same Medicare primary specialty in Dublin, OH — not a recommendation.
Other clinicians in OSU Internal Medicine LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Jc Edwards School Of Medicine, Marshall University |
| Graduation year | 1983 (43 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) | 1104858018 |
| 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