Zachary Gamble, DO
NPI 1669901435 · Psychiatry Physician · Greeneville, TN
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zachary Gamble, DO is a Psychiatry Physician provider in Greeneville, TN (NPI 1669901435).
Provider details
- NPI number
- 1669901435
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- LL40740 (SC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
9 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
10 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Risperidone | 28 |
| Buspirone Hcl | 19 |
| Duloxetine Hcl | 17 |
| Mirtazapine | 17 |
| Benztropine Mesylate | 16 |
| Sertraline Hcl | 13 |
| Vortioxetine Hydrobromidebrand: Trintellix | 13 |
| Bupropion Hclbrand: Bupropion Xl | 12 |
| Lorazepam | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$198 across 8 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (9)
- 169 Ashley Ave Rm 202Charleston, SC 29425-8905Phone: (843) 792-0192
- 1 Medical Park Blvd Ste 200eBristol, TN 37620-7498Phone: (423) 844-5100
- 403 N State of Franklin RdJohnson City, TN 37604-6034Phone: (423) 431-7111
- 701 Med Tech Pkwy Ste 201Johnson City, TN 37604-2365Phone: (423) 232-8301
- 701 Med Tech Pkwy Ste 200Johnson City, TN 37604-2371Phone: (423) 232-8301
- 525 N State of Franklin Rd Ste 9Johnson City, TN 37604-8213Phone: (423) 302-3480
- 2204 Pavilion Dr Ste 107Kingsport, TN 37660-4651Phone: (423) 343-1442
- 1980 Holton Ave E Ste 103Big Stone Gap, VA 24219-3367Phone: (276) 524-8100
- 338 Coeburn Ave SwNorton, VA 24273-2606Phone: (276) 679-0800
Registry dates
- Enumerated
- 2017-06-06
- Last updated
- 2024-01-17
- Certified
- 2024-01-17
Frequently asked questions
- What is Zachary Gamble's NPI number?
- Zachary Gamble's National Provider Identifier (NPI) is 1669901435, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zachary Gamble's specialty?
- Zachary Gamble is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Zachary Gamble located?
- Zachary Gamble's practice location on file with NPPES is 438 E Vann Rd Ste 202, Greeneville, TN 37743-7202.
- What is Zachary Gamble's phone number?
- The practice phone number listed in the NPPES registry for Zachary Gamble is (423) 278-1856.
- Does Zachary Gamble accept Medicare?
- Zachary Gamble is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zachary Gamble's NPI active?
- Yes — Zachary Gamble's NPI (1669901435) is active in the NPPES registry as of the last update on 2024-01-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.