Quick answers
- Does Holly McGaw accept Medicare assignment?
- Yes. Medicare's clinician data says Holly McGaw 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 Holly McGaw see?
- In 2024, CMS data shows 137 Original Medicare patients and 1,816 services for Holly McGaw. This counts Original Medicare only and measures volume, not quality.
- What is Holly McGaw's NPI number?
- 1598000887. 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 Holly McGaw, 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 | 137 |
|---|---|
| Services billed to Medicare | 1,816 |
| Different services or procedures | 79 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)230 services
- Insertion of needle into vein for collection of blood sample (36415)175 services
- Blood test, comprehensive group of blood chemicals (80053)157 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)131 services
- Hemoglobin a1c level (83036)117 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 cholesterol75%
- High blood pressure72%
- Arthritis45%
- Anxiety34%
- Diabetes28%
- Depression28%
Hospitals where Holly McGaw works
Medicare's Facility Affiliation Data lists Holly McGaw 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.
- Greeneville Community HospitalGreeneville, TN · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 440050
Practice locations
Addresses where Holly McGaw is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 20; the Medicare profile lists all.
- 115 Woodlawn DrJohnson City, TN 37604 (423) 975‑0095
- 1200 Spruce LnElizabethton, TN 37643 (423) 543‑3202
- 1201 Bishop StUnion City, TN 38261 (731) 885‑2410
- 1225 E Weisgarber Rd, Suite 200Knoxville, TN 37849 (865) 938‑3627
- 1275 Dick Lonas RdKnoxville, TN 37909
Group practices
Medicare enrollment lists Holly McGaw as a member of these groups (CMS data updated October 2, 2026).
- Summit Medical Group, PLLC652 clinicians in the group
- Southeastern Physician Services PC593 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Johnson City
Clinicians with the same Medicare primary specialty in Johnson City, TN — not a recommendation.
Other clinicians in Summit Medical Group, PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2015 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1598000887 |
| 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