Individual provider Active NPI

Mary Allen Olson, APRN, PMHNP-BC

  • Psychiatric/Mental Health Nurse Practitioner
  • Hernando, MS
National Provider Identifier
1497488779
Registry record updated Mar 17, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X
License
905248 Issued in MS
Practice address
220 Oak Tree Dr
Hernando, MS 38632-1196
Phone
(662) 510-8606
NPI assigned
Jul 5, 2022
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 17, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Psychiatric/Mental Health Nurse Practitioner 363LP0808X 905248 MS Primary

Addresses

Primary practice location

220 Oak Tree Dr
Hernando, MS 38632-1196

Mailing address

PO Box 770
Hernando, MS 38632-0770

Other practice location 1

1204 Office Park Dr Ste A
Oxford, MS 38655-3597
Phone (662) 510-8606

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MS
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20230607003218 MS Practitioner - Nurse Practitioner 2567829419 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2019
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
In Focus Psychiatry LLCGroup PAC ID 1759673072, 8 clinicians

Practice addresses (Care Compare)

1204 Office Park Dr
Suite a
Oxford, MS 38655-3597
Phone 6625108606103

220 Oak Tree Dr
Hernando, MS 38632-1196
Phone (662) 510-8606

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

Practice roles

OrganizationSpecialtyStatusNew patients
In Focus Psychiatry LLC Psychiatric/Mental Health CurrentSince Aug 19, 2024 Accepting new patients
In Focus Psychiatry LLC Psychiatric/Mental Health CurrentSince Aug 19, 2024 Accepting new patients
Right Track Medical Group, Inc CurrentSince Apr 18, 2023 Accepting new patients
Precise Clinical Neuroscience Specialists Past Accepting new patients

Locations

220 Oak Tree Dr
Hernando, MS 38632
Phone (662) 510-8606

117 Fountains Blvd
Ste 1
Madison, MS 39110
Phone (601) 499-1105

404 Enterprise Dr
Ste C
Oxford, MS 38655
Phone (662) 510-8606

1204 Office Park Dr
#A
Oxford, MS 38655
Phone (662) 510-8606

200 Highway 12 E
Starkville, MS 39759
Phone (662) 498-1900

Organizations & group practices 4

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.

NPI Registry JSON

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

{
    "created_epoch": "1656979200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773705600000",
    "number": "1497488779",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 770",
            "city": "HERNANDO",
            "state": "MS",
            "postal_code": "386320770"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "220 OAK TREE DR",
            "city": "HERNANDO",
            "state": "MS",
            "postal_code": "386321196",
            "telephone_number": "662-510-8606"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1204 Office Park Dr Ste A",
            "address_purpose": "LOCATION",
            "city": "Oxford",
            "state": "MS",
            "postal_code": "386553597",
            "country_code": "US",
            "telephone_number": "662-510-8606",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "OLSON",
        "first_name": "MARY ALLEN",
        "credential": "APRN, PMHNP-BC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-07-05",
        "last_updated": "2026-03-17",
        "certification_date": "2026-03-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "MS",
            "license": "905248",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Hernando, MS

Sources for this page

Verify at the official NPI Registry.