Mark Alan Altfillisch, OD

Primary specialty

OptometristTaxonomy code 152W00000X

License

1969 Issued in IA

Practice address

224 E Main Street
Ottumwa, IA 52501-2916

Phone

(641) 684-5463

Fax

(641) 684-5475

NPI assigned

Sep 22, 2006

Last updated

Sep 2, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in IA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: No
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Optometry

Education

Southern College of Optometry, 1992

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

Merit-based Incentive Payment System (MIPS)

Final score

88.62 of 100Reported as individual

Quality

77.24

Improvement activities

40

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: markaltfillisch@direct.revolutionehr.com

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Dr. J. Brent Altfillisch, O.D. P.C.

  • Optometrist
  • Ottumwa, IA
  • NPI 1467449686
  Medicare reassignment NPD

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1158883200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788307200000",
    "number": "1093814014",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "224 E MAIN ST",
            "city": "OTTUMWA",
            "state": "IA",
            "postal_code": "525012916",
            "telephone_number": "641-684-5463",
            "fax_number": "641-684-5475"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "224 E MAIN STREET",
            "city": "OTTUMWA",
            "state": "IA",
            "postal_code": "525012916",
            "telephone_number": "641-684-5463",
            "fax_number": "641-684-5475"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ALTFILLISCH",
        "first_name": "MARK",
        "middle_name": "ALAN",
        "name_prefix": "Dr.",
        "credential": "OD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-09-22",
        "last_updated": "2026-09-02",
        "certification_date": "2026-09-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "IA",
            "license": "1969",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Alcohol & Drug Dependency Services
• Alcohol & Drug Dependency Services
• Alexander Enterprises
• All Ages Pediatrics P.C.
• John Brent Altfillisch, OD
• Matilda Alvarado, LMHC
• Richard T Ameln, M.D.
• American Baptist Homes of the Midwest (Ottumwa Crest Services)
• American Home Finding Assoc (Maternal Womens Health)
• American Home Finding Assoc (Maternal Women's Health)

• Optometrist in Ottumwa, IA
• Providers in Ottumwa, IA by specialty
• Optometrist in Iowa

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 2, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.