NPIMap

Individual provider Active NPI

William Frederick Krooss, MD

  • Family Medicine Physician
  • Pearl, MS
National Provider Identifier
1588653901
Registry record updated May 9, 2019
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
08839 Issued in MS
Practice address
187 Doctors Dr
Pearl, MS 39208-4042
Phone
(601) 939-8921
Fax
(601) 932-5902
NPI assigned
Oct 18, 2005
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on May 9, 2019

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X 08839 MS Primary
Geriatric Medicine (Family Medicine) Physician 207QG0300X 08839 MS

Addresses

Primary practice location

187 Doctors Dr
Pearl, MS 39208-4042

Mailing address

2001 Airport Rd N
Suite 204
Flowood, MS 39232-8827
Phone (601) 932-3191

Other practice location 1

969 Lakeland Dr
Jackson, MS 39216-4606
Phone (601) 200-4644

Other identifiers 2

IdentifierTypeStateIssuer
00015628MedicaidMS
1427063957OtherNPI

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MS, LA2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20060920000029 MS Practitioner - Family PracticePractitioner - Geriatric Medicine 5193778090 Reassigns benefits to 2 organizations
I20230110001770 LA Practitioner - Family Practice 5193778090 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Family Practice
Education
Louisiana State University School of Medicine in New Orleans, 1976
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Central Louisiana Physicians, LLCGroup PAC ID 9335598499, 55 clinicians

Practice addresses (Care Compare)

3330 Masonic Dr
Alexandria, LA 71301-3841
Phone (318) 487-1122

6300 Main St
Zachary, LA 70791-4037
Phone (225) 658-4000

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Ochsner Mississippi, LLC CurrentSince Dec 18, 2020 Accepting new patients
Comprehensive Hospitalists of Ms, LLC CurrentSince Jan 21, 2024 Accepting new patients
Ochsner Mississippi, LLC Current Accepting new patients
St. Bernard Physician Services, LLC CurrentSince Oct 16, 2022 Accepting new patients
Comprehensive Hospitalists of Ms, LLC CurrentSince Jan 21, 2024 Accepting new patients
Hospital Physician Services - Southeast Professional Corporation CurrentSince Jun 30, 2025 Accepting new patients
Central Louisiana Physicians, LLC CurrentSince Dec 24, 2023 Accepting new patients
Ochsner Mississippi, LLC CurrentSince Dec 18, 2020 Accepting new patients
Christus Health Central Louisiana Past Accepting new patients
Hospital Service District 1 of East Baton Rouge Parish Past Accepting new patients

Locations

3330 Masonic Dr
Alexandria, LA 71301
Phone (318) 448-6917

211 4th St
Alexandria, LA 71301
Phone (318) 473-3000

8000 W Judge Perez Dr
Chalmette, LA 70043
Phone (504) 493-6078

6300 Main St
Zachary, LA 70791
Phone (225) 570-2618

1105 Earl Frye Blvd
Amory, MS 38821
Phone (662) 256-7111

149 Drinkwater Rd
Bay St Louis, MS 39520
Phone (228) 467-8600

54 Sgt Prentiss Dr
Natchez, MS 39120
Phone (601) 443-2100

1100 Belk Blvd
Oxford, MS 38655
Phone (662) 636-1000

Organizations & group practices 10

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.

Hospital & facility affiliations 24

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

View all 24

NPI Registry JSON

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

{
    "created_epoch": "1129593600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1557360000000",
    "number": "1588653901",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2001 AIRPORT RD N",
            "address_2": "SUITE 204",
            "city": "FLOWOOD",
            "state": "MS",
            "postal_code": "392328827",
            "telephone_number": "601-932-3191",
            "fax_number": "601-420-4375"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "187 DOCTORS DR",
            "city": "PEARL",
            "state": "MS",
            "postal_code": "392084042",
            "telephone_number": "601-939-8921",
            "fax_number": "601-932-5902"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "969 Lakeland Dr",
            "address_purpose": "LOCATION",
            "city": "Jackson",
            "state": "MS",
            "postal_code": "392164606",
            "country_code": "US",
            "telephone_number": "601-200-4644",
            "fax_number": "601-200-4645",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KROOSS",
        "first_name": "WILLIAM",
        "middle_name": "FREDERICK",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2005-10-18",
        "last_updated": "2019-05-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "MS",
            "license": "08839",
            "primary": true
        },
        {
            "code": "207QG0300X",
            "taxonomy_group": "",
            "desc": "Family Medicine, Geriatric Medicine",
            "state": "MS",
            "license": "08839",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00015628",
            "state": "MS"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "NPI",
            "identifier": "1427063957",
            "state": null
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Pearl, MS

Sources for this page

Verify at the official NPI Registry.