Mark Barlow, OD
NPI 1710974183 · Optometrist · Saint Louis, MO
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Barlow, OD is a Optometrist provider in Saint Louis, MO (NPI 1710974183).
Provider details
- NPI number
- 1710974183
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Male
- Sole proprietor
- No
- License
- 2013007905 (MO)
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
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
504 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 the Retina92250 | 168 | $35 |
| Established Patient Problem Focused Exam of Visual System92012 | 113 | $85 |
| Established Patient Complete Exam of Visual System92014 | 73 | $120 |
| New Patient Complete Exam of Visual System92004 | 54 | $142 |
| Imaging of Retina92134 | 27 | $38 |
| New Patient Problem Focused Exam of Visual System92002 | 26 | $81 |
| Exam of Visual Field With Extended Testing92083 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 95 | 21 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 26 | — |
| Loteprednol Etabonate | 15 | 12 |
| Brimonidine Tartrate | 14 | — |
| Prednisolone Acetate | 13 | — |
| Brimonidine Tartrate/Timololbrand: Brimonidine Tartrate-Timolol | 12 | — |
| Dorzolamide Hcl | 11 | — |
These counts cover prescriptions paid through Medicare Part D in 2024 — they include 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 , 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$517 across 25 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
Additional practice locations (2)
- 1224 Graham Rd Ste 2007Florissant, MO 63031-8026Phone: (314) 837-3667
- 12692 Lamplighter Square Shpg CtrSaint Louis, MO 63128-2746Phone: (314) 432-5478
Registry dates
- Enumerated
- 2005-09-30
- Last updated
- 2025-08-21
- Certified
- 2025-08-21
Frequently asked questions
- What is Mark Barlow's NPI number?
- Mark Barlow's National Provider Identifier (NPI) is 1710974183, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Barlow's specialty?
- Mark Barlow is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Mark Barlow located?
- Mark Barlow's practice location on file with NPPES is 7331 Watson Rd, Saint Louis, MO 63119-4405.
- What is Mark Barlow's phone number?
- The practice phone number listed in the NPPES registry for Mark Barlow is (314) 633-8575.
- Does Mark Barlow accept Medicare?
- Mark Barlow is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Barlow's NPI active?
- Yes — Mark Barlow's NPI (1710974183) is active in the NPPES registry as of the last update on 2025-08-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.