Diana Marie Douglas, O.D.

Primary specialty

OptometristTaxonomy code 152W00000X

License

5534 Issued in OH

Practice address

302 Niles Cortland Rd NE
Warren, OH 44484-1940

Phone

(330) 394-2020

Fax

(330) 395-7194

NPI assigned

Aug 20, 2009

Last updated

Nov 21, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other names 1

• Dr. Diana Marie Koesel Former name

Medicare fee-for-service enrollment

Enrolled in OH

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

Illinois College of Optometry at Chicago, 1999

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Douglas Family Eyecare, Inc.Group PAC ID 5496892382, 3 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

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.

• Douglas Family Eyecare, Inc.

  • Optometrist
  • Warren, OH
  • NPI 1396978573
  Medicare reassignment Care Compare group Authorized official

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

{
    "created_epoch": "1250726400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763683200000",
    "number": "1144452459",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "302 NILES CORTLAND RD NE",
            "city": "WARREN",
            "state": "OH",
            "postal_code": "444841940",
            "telephone_number": "330-394-2020",
            "fax_number": "330-395-7194"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "302 NILES CORTLAND RD NE",
            "city": "WARREN",
            "state": "OH",
            "postal_code": "444841940",
            "telephone_number": "330-394-2020",
            "fax_number": "330-395-7194"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DOUGLAS",
        "first_name": "DIANA",
        "middle_name": "MARIE",
        "name_prefix": "Dr.",
        "credential": "O.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2009-08-20",
        "last_updated": "2025-11-21",
        "certification_date": "2025-11-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "NC",
            "license": "1979",
            "primary": false
        },
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "OH",
            "license": "5534",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "DIANA",
            "last_name": "KOESEL",
            "middle_name": "MARIE",
            "prefix": "DR.",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Olivia Dotson
• Julie Double, PT
• Douglas a Dunlap, DO, Inc
• Douglas Family Eyecare, Inc.
• Chad James Douglas, O.D.
• Samantha Douglas, CDCA-P
• Donald L Downing, DPT
• Dr Badi Altawil MD LLC
• Dr Cecil Chiropractic LLC
• Dr Gina Reghetti DO PC Inc

• Optometrist in Warren, OH
• Providers in Warren, OH by specialty
• Optometrist in Ohio

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 21, 2025; 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.