Individual provider Active NPI

Mary Araba Akyinba Otoo, OD, MPH

  • Optometrist
  • Crown Point, IN
National Provider Identifier
1508578733
Registry record updated Jun 5, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
OptometristTaxonomy code 152W00000X
License
18004382A Issued in IN
Practice address
9797 Massachusetts St
Crown Point, IN 46307-0278
Phone
(219) 649-2704
NPI assigned
Dec 19, 2022
Last updated
Jun 5, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 5, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Optometrist 152W00000X 18004382A IN Primary

Addresses

Primary practice location

9797 Massachusetts St
Crown Point, IN 46307-0278

Mailing address

2121 Lake Ave
Fort Wayne, IN 46805-5100

Other practice location 1

6850 Hohman Ave
Hammond, IN 46324-1410
Phone (219) 931-7509

Other practice location 2

2121 Lake Ave
Fort Wayne, IN 46805-5100
Phone (260) 426-5431

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IN, TX2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20230911004132 IN Practitioner - Optometry 0840654752 Reassigns benefits to 1 organization
I20251028002254 TX Practitioner - Optometry 0840654752 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Optometry
Education
Ohio State University - College of Optometry, 2022
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Woodrow Wilson Keeble Memorial Health Care CenterGroup PAC ID 1850295940, 23 clinicians
Williams Eye Institute PCGroup PAC ID 2860386406, 7 clinicians

Practice addresses (Care Compare)

100 Lake Traverse Dr
Sisseton, SD 57262-7046
Phone (605) 698-7606

9797 Massachusetts St
Crown Point, IN 46307-0278

9797 Massachusetts St
Crown Point, IN 46307-7550
Phone (219) 736-2200

Merit-based Incentive Payment System (MIPS)

Final score
93.29 of 100Reported as group
Quality
100
Improvement activities
40
Cost
77.63

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

Practice roles

OrganizationSpecialtyStatusNew patients
Woodrow Wilson Keeble Memorial Health Care Center CurrentSince Oct 14, 2025 Accepting new patients
Williams Eye Institute, PC Optometrist Current Accepting new patients
Williams Eye Institute, PC CurrentSince Aug 17, 2023 Accepting new patients

Locations

9797 Massachusetts St
Crown Point, IN 46307
Phone (219) 649-2704

6850 Hohman Ave
Hammond, IN 46324
Phone (219) 931-7509

100 Lake Traverse Dr
Sisseton, SD 57262

Interoperability endpoints

  • Direct secure messaging: maotoo@williamseye.emadirect.md

Organizations & group practices 3

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.

NPI Registry JSON

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

{
    "created_epoch": "1671408000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1749081600000",
    "number": "1508578733",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2121 LAKE AVE",
            "city": "FORT WAYNE",
            "state": "IN",
            "postal_code": "468055100"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9797 MASSACHUSETTS ST",
            "city": "CROWN POINT",
            "state": "IN",
            "postal_code": "463070278",
            "telephone_number": "219-649-2704"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "6850 Hohman Ave",
            "address_purpose": "LOCATION",
            "city": "Hammond",
            "state": "IN",
            "postal_code": "463241410",
            "country_code": "US",
            "telephone_number": "219-931-7509",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2121 Lake Ave",
            "address_purpose": "LOCATION",
            "city": "Fort Wayne",
            "state": "IN",
            "postal_code": "468055100",
            "country_code": "US",
            "telephone_number": "260-426-5431",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "OTOO",
        "first_name": "MARY",
        "middle_name": "ARABA AKYINBA",
        "name_prefix": "Dr.",
        "credential": "OD, MPH",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-12-19",
        "last_updated": "2025-06-05",
        "certification_date": "2025-06-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "IN",
            "license": "18004382A",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Crown Point, IN

Sources for this page

Verify at the official NPI Registry.