Mark Reddan, O.D.
NPI 1558390229 · Optometrist · Florissant, MO
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Reddan, O.D. is a Optometrist provider in Florissant, MO (NPI 1558390229).
Provider details
- NPI number
- 1558390229
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- No
- License
- T02531 (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
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,130 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 | 431 | $125 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 174 | $91 |
| Established Patient Problem Focused Exam of Visual System92012 | 135 | $88 |
| Exam of Visual Field With Extended Testing92083 | 107 | $62 |
| Imaging of Optic Nerve92133 | 95 | $34 |
| Photography of the Retina92250 | 72 | $36 |
| New Patient Complete Exam of Visual System |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 707 | 205 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 269 | 73 |
| Timolol Maleate | 79 | 21 |
| Bimatoprostbrand: Lumigan | 69 | 25 |
| Prednisolone Acetate | 58 | 45 |
| Tobramycin/Dexamethasonebrand: Tobramycin-Dexamethasone | 42 | 39 |
| Travoprost | 41 | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$819 across 40 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 (1)
- 4750 Mexico Rd Ste 200Saint Peters, MO 63376-1668Phone: (314) 838-0300
Registry dates
- Enumerated
- 2006-07-03
- Last updated
- 2022-11-09
- Certified
- 2022-11-09
Frequently asked questions
- What is Mark Reddan's NPI number?
- Mark Reddan's National Provider Identifier (NPI) is 1558390229, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Reddan's specialty?
- Mark Reddan is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Mark Reddan located?
- Mark Reddan's practice location on file with NPPES is 900 N Highway 67, Florissant, MO 63031-2919.
- What is Mark Reddan's phone number?
- The practice phone number listed in the NPPES registry for Mark Reddan is (314) 838-0300.
- Does Mark Reddan accept Medicare?
- Mark Reddan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Reddan's NPI active?
- Yes — Mark Reddan's NPI (1558390229) is active in the NPPES registry as of the last update on 2022-11-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.