John Gentry, O.D.
NPI 1871549691 · Optometrist · Johnson City, TN
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Gentry, O.D. is a Optometrist provider in Johnson City, TN (NPI 1871549691).
Provider details
- NPI number
- 1871549691
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 827 (TN)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
896 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Photography of Content of Eyes92285 | 294 | $20 |
| Imaging of Retina92134 | 237 | $35 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 153 | $86 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 100 | $122 |
| Exam of Visual Field With Extended Testing92083 | 44 | $38 |
| Photography of the Retina92250 | 40 | $32 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 232 | 63 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 56 | 14 |
| Netarsudil Mesylatebrand: Rhopressa | 55 | — |
| Latanoprostene Bunodbrand: Vyzulta | 30 | — |
| Prednisolone Acetate | 29 | 27 |
| Brimonidine Tartrate | 27 | — |
| Azelastine Hcl | 26 | 17 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$564 across 19 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
Registry dates
- Enumerated
- 2006-05-25
- Last updated
- 2015-11-23
Frequently asked questions
- What is John Gentry's NPI number?
- John Gentry's National Provider Identifier (NPI) is 1871549691, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Gentry's specialty?
- John Gentry is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is John Gentry located?
- John Gentry's practice location on file with NPPES is 2328 Knob Creek Rd, Johnson City, TN 37604-2100.
- What is John Gentry's phone number?
- The practice phone number listed in the NPPES registry for John Gentry is (423) 722-1311.
- Does John Gentry accept Medicare?
- John Gentry is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Gentry's NPI active?
- Yes — John Gentry's NPI (1871549691) is active in the NPPES registry as of the last update on 2015-11-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.