David Merritt, OD
NPI 1831231158 · Optometrist · Sparta, TN
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Merritt, OD is a Optometrist provider in Sparta, TN (NPI 1831231158).
Provider details
- NPI number
- 1831231158
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Male
- Sole proprietor
- Yes
- License
- OD1636 (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 tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,177 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Established Patient Complete Exam of Visual System92014 | 345 | $114 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 216 | $83 |
| Photography of the Retina92250 | 182 | $32 |
| Exam of Visual Field With Extended Testing92083 | 106 | $56 |
| Imaging of Optic Nerve92133 | 94 | $32 |
| Exam of the Internal Drainage System of Eye92020 | 89 | $25 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 123 | 31 |
| Tobramycin/Dexamethasonebrand: Tobramycin-Dexamethasone | 21 | 19 |
| Timolol Maleate | 20 | — |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 16 | — |
| Brimonidine Tartrate | 14 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-13
- Last updated
- 2023-06-02
- Certified
- 2023-06-02
Frequently asked questions
- What is David Merritt's NPI number?
- David Merritt's National Provider Identifier (NPI) is 1831231158, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Merritt's specialty?
- David Merritt is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is David Merritt located?
- David Merritt's practice location on file with NPPES is 305 N Spring St, Sparta, TN 38583-1300.
- What is David Merritt's phone number?
- The practice phone number listed in the NPPES registry for David Merritt is (931) 836-2424.
- Does David Merritt accept Medicare?
- David Merritt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Merritt's NPI active?
- Yes — David Merritt's NPI (1831231158) is active in the NPPES registry as of the last update on 2023-06-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.