Mack Johnson, O.D.
NPI 1831107986 · Optometrist · Guymon, OK
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mack Johnson, O.D. is a Optometrist provider in Guymon, OK (NPI 1831107986).
Provider details
- NPI number
- 1831107986
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 2159 (OK)
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
19 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
1,170 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 | 350 | $108 |
| Photography of the Retina92250 | 337 | $32 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 295 | $79 |
| New Patient Complete Exam of Visual System92004 | 54 | $129 |
| Removal of Recurring Cataract in Lens Capsule Using a Laser66821 | 40 | $281 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 40 | $85 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 78 | 13 |
| Prednisolone Acetate | 60 | 42 |
| Brimonidine Tartrate | 55 | — |
| Timolol Maleate | 52 | 11 |
| Cyclosporine | 21 | — |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 19 | 15 |
| Doxycycline Hyclate | 18 | 12 |
| Brimonidine Tartrate/Timolol |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$18 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
- 2006-08-04
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mack Johnson's NPI number?
- Mack Johnson's National Provider Identifier (NPI) is 1831107986, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mack Johnson's specialty?
- Mack Johnson is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Mack Johnson located?
- Mack Johnson's practice location on file with NPPES is 301 Northridge Cir, Guymon, OK 73942-2735.
- What is Mack Johnson's phone number?
- The practice phone number listed in the NPPES registry for Mack Johnson is (580) 338-8437.
- Does Mack Johnson accept Medicare?
- Mack Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mack Johnson's NPI active?
- Yes — Mack Johnson's NPI (1831107986) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.