Physician Profile
Timothy P. Zajonc, MD is a healthcare provider in Johnson City, TN specializing in otolaryngology (ent). Timothy trained at University of Texas Southwestern Medical School at Dallas, graduating in 1995. Medicare claims data shows Timothy provided 2,220 services to 896 patients. The services billed most often include professional service for preparation and provision of 1 or more antigens, professional service for multiple injections of allergen, and test to assess middle ear function.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
2340 KNOB CREEK RD 704
Johnson City, TN 37604
Within Otolaryngology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Balance
Ear and hearing
Head, neck, and salivary
Nose and sinus
Sleep and airway
Throat and voice
Cancer
Head & Neck
Throat & Voice
Most searched procedures
Office diagnosis
Cosmetic
Ear & Hearing
Ear procedures
Head & Neck
Head and neck surgery
Nose & Sinus
Nose and sinus procedures
Sleep and airway
Throat & Voice
Throat, voice, and swallowing
2,220 services · 896 patients · 17 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of impacted ear wax | Procedure | 69210 |
53 | As often as other peers in Otolaryngology (ENT) |
| Diagnostic exam of voice box using a flexible endoscope | Procedure | 31575 |
46 | As often as other peers in Otolaryngology (ENT) |
| Diagnostic exam of nasal passages using an endoscope | Procedure | 31231 |
19 | Less often than most peers in Otolaryngology (ENT) |
| Evaluation of sleep-disordered breathing by examination of upper airway using an endoscope | Procedure | 42975 |
17 | As often as other peers in Otolaryngology (ENT) |
| Ct scan of face without contrast | Imaging | 70486 |
43 | More often than most peers in Otolaryngology (ENT) |
| Ultrasound scan of head and neck soft tissue | Imaging | 76536 |
16 | Less often than most peers in Otolaryngology (ENT) |
| Professional service for preparation and provision of 1 or more antigens | Treatment | 95165 |
800 | As often as other peers in Otolaryngology (ENT) |
| Professional service for multiple injections of allergen | Treatment | 95117 |
426 | More often than most peers in Otolaryngology (ENT) |
| Test to assess middle ear function | Treatment | 92567 |
147 | More often than most peers in Otolaryngology (ENT) |
| Comprehensive hearing and speech recognition test | Treatment | 92557 |
114 | More often than most peers in Otolaryngology (ENT) |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Zajonc is an otolaryngology (ent) in Johnson City, TN. That is the designation recorded for this NPI in the federal registry.
NPI registry
Dr. Zajonc is listed at 2340 Knob Creek Rd 704, Johnson City, TN 37604. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (423) 929-9101. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Zajonc's National Provider Identifier is 1336117779. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Zajonc attended University of Texas Southwestern Medical School at Dallas, graduating in 1995. This comes from the CMS National Downloadable File.
CMS public data
Dr. Zajonc has 31 years experience. Calculated from a graduation year of 1995, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Zajonc performs procedures including removal of impacted ear wax, diagnostic exam of voice box using a flexible endoscope and diagnostic exam of nasal passages using an endoscope; reads or performs imaging such as ct scan of face without contrast and ultrasound scan of head and neck soft tissue; provides treatments such as professional service for preparation and provision of 1 or more antigens and professional service for multiple injections of allergen, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Zajonc. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.