John Marshall, O.D.
NPI 1295754000 · Optometrist · Big Spring, TX
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Marshall, O.D. is a Optometrist provider in Big Spring, TX (NPI 1295754000).
Provider details
- NPI number
- 1295754000
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 2618TG (TX)
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
315 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 | 123 | $119 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 74 | $87 |
| Established Patient Problem Focused Exam of Visual System92012 | 68 | $84 |
| New Patient Complete Exam of Visual System92004 | 23 | $142 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 15 | $95 |
| Exam of Visual Field With Extended Testing92083 | 12 | $60 |
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 | 120 | 25 |
| Timolol Maleate | 46 | 14 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 14 | — |
| Dorzolamide/Timolol/Pfbrand: Cosopt Pf | 13 | — |
| Brimonidine Tartrate | 11 | — |
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
- 2006-07-19
- Last updated
- 2010-09-03
Frequently asked questions
- What is John Marshall's NPI number?
- John Marshall's National Provider Identifier (NPI) is 1295754000, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Marshall's specialty?
- John Marshall is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is John Marshall located?
- John Marshall's practice location on file with NPPES is 2311 Scurry St, Big Spring, TX 79720-5552.
- What is John Marshall's phone number?
- The practice phone number listed in the NPPES registry for John Marshall is (432) 263-2501.
- Does John Marshall accept Medicare?
- John Marshall is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Marshall's NPI active?
- Yes — John Marshall's NPI (1295754000) is active in the NPPES registry as of the last update on 2010-09-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.