David Harmon
NPI 1639150527 · Optometrist · Morristown, TN
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Harmon is a Optometrist provider in Morristown, TN (NPI 1639150527).
Provider details
- NPI number
- 1639150527
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- OD1606 (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
134 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) |
|---|---|---|
| Established Patient Complete Exam of Visual System92014 | 47 | $115 |
| Photography of the Retina92250 | 38 | $34 |
| Exam of Visual Field With Extended Testing92083 | 18 | $57 |
| Imaging of Retina92134 | 16 | $36 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 15 | $83 |
Typical Medicare-allowed amounts for these services range $34–$115 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azelastine Hcl | 74 | 21 |
| Latanoprost | 43 | 14 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 38 | 33 |
| Brimonidine Tartrate | 34 | — |
| Bepotastine Besilate | 31 | — |
| Cyclosporinebrand: Restasis | 30 | — |
| Bimatoprostbrand: Lumigan | 23 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$70 across 1 record (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
- 2005-11-08
- Last updated
- 2014-03-03
Frequently asked questions
- What is David Harmon's NPI number?
- David Harmon's National Provider Identifier (NPI) is 1639150527, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Harmon's specialty?
- David Harmon is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is David Harmon located?
- David Harmon's practice location on file with NPPES is 131 N Henry St # 1088, Morristown, TN 37814-4626.
- What is David Harmon's phone number?
- The practice phone number listed in the NPPES registry for David Harmon is (423) 586-9601.
- Does David Harmon accept Medicare?
- David Harmon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Harmon's NPI active?
- Yes — David Harmon's NPI (1639150527) is active in the NPPES registry as of the last update on 2014-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.