Quick answers
- Does Timothy P. Zajonc accept Medicare assignment?
- Yes. Medicare's clinician data says Timothy P. Zajonc 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 Timothy P. Zajonc see?
- In 2024, CMS data shows 356 Original Medicare patients and 2,605 services for Timothy P. Zajonc. This counts Original Medicare only and measures volume, not quality.
- What is Timothy P. Zajonc's NPI number?
- 1336117779. 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 Timothy P. Zajonc, 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 | 356 |
|---|---|
| Services billed to Medicare | 2,605 |
| Different services or procedures | 76 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Professional service for preparation and provision of 1 or more antigens (95165)800 services
- Professional service for multiple injections of allergen (95117)426 services
- Test to assess middle ear function (92567)147 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)142 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)136 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%
- Arthritis52%
- Ischemic heart disease30%
- Anxiety30%
- Depression29%
Hospitals where Timothy P. Zajonc works
Medicare's Facility Affiliation Data lists Timothy P. Zajonc 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.
- Franklin Woods Community HospitalJohnson City, TN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 440184
- Greeneville Community HospitalGreeneville, TN · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 440050
- Johnson City Medical CenterJohnson City, TN · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 440063
- Sycamore Shoals HospitalElizabethton, TN · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 440018
Practice locations
Addresses where Timothy P. Zajonc is enrolled with Medicare (CMS data updated October 2, 2026).
- 2340 Knob Creek RdJohnson City, TN 37604
Specialties
- Otolaryngologyprimary
Other ENT doctors in Johnson City
Clinicians with the same Medicare primary specialty in Johnson City, TN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Southwestern Medical School At Dallas |
| Graduation year | 1995 (31 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1336117779 |
| 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