Mark R. Dill, O.D.

Primary specialty

OptometristTaxonomy code 152W00000X

License

076578 Issued in IA

Practice address

2111 W Lake St
Fort Collins, CO 80521-4213

Phone

(406) 234-2911

NPI assigned

Jul 15, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 5

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

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

• Real Optics Inc

  • Eyewear Supplier
  • Des Moines, IA
  • NPI 1003970344
  NPD (past)

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

{
    "created_epoch": "1152921600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777939200000",
    "number": "1972529360",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2111 W LAKE ST",
            "city": "FORT COLLINS",
            "state": "CO",
            "postal_code": "805214213",
            "telephone_number": "406-234-2911"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2111 W LAKE ST",
            "city": "FORT COLLINS",
            "state": "CO",
            "postal_code": "805214213",
            "telephone_number": "406-234-2911"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DILL",
        "first_name": "MARK",
        "middle_name": "R.",
        "credential": "O.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-15",
        "last_updated": "2026-05-05",
        "certification_date": "2026-05-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "CT",
            "license": "3437",
            "primary": false
        },
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "CO",
            "license": "0004010",
            "primary": false
        },
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "IA",
            "license": "076578",
            "primary": true
        },
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "SC",
            "license": "2586",
            "primary": false
        },
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "OH",
            "license": "007460",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Maureen L Dieterich, NP
• Nicole Rayelle Dieterle
• Dieterman Klinik, LLC
• Scott Dietrich, PHARMD
• Dilaawar J. Mistry, M.D., PLLC
• Steven Lee Dilley, D.D.S.
• Dillon Companies LLC
• Dillon Companies LLC
• Dillon Companies LLC
• Dillon Companies LLC

• Optometrist in Fort Collins, CO
• Providers in Fort Collins, CO by specialty
• Optometrist in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 5, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.