Mark Altfillisch, OD
NPI 1093814014 · Optometrist · Ottumwa, IA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Altfillisch, OD is a Optometrist provider in Ottumwa, IA (NPI 1093814014).
Provider details
- NPI number
- 1093814014
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Male
- Sole proprietor
- No
- License
- 1969 (IA)
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
20 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
1,115 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 | 560 | $119 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 112 | $53 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 90 | $86 |
| Imaging of Retina92134 | 89 | $38 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 73 | $101 |
| Imaging of Optic Nerve92133 | 61 | $34 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 254 | 42 |
| Timolol Maleate | 40 | — |
| Bimatoprostbrand: Lumigan | 37 | — |
| Brimonidine Tartrate | 28 | — |
| Ofloxacin | 23 | 23 |
| Bimatoprost | 21 | — |
| Latanoprostene Bunodbrand: Vyzulta | 21 | — |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-22
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Altfillisch's NPI number?
- Mark Altfillisch's National Provider Identifier (NPI) is 1093814014, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Altfillisch's specialty?
- Mark Altfillisch is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Mark Altfillisch located?
- Mark Altfillisch's practice location on file with NPPES is 224 E Main Street, Ottumwa, IA 52501-2916.
- What is Mark Altfillisch's phone number?
- The practice phone number listed in the NPPES registry for Mark Altfillisch is (641) 684-5463.
- Does Mark Altfillisch accept Medicare?
- Mark Altfillisch is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Altfillisch's NPI active?
- Yes — Mark Altfillisch's NPI (1093814014) 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.