Sierra Reid Cooley, PA-C – Physician Assistant

Key facts

NPI: 1497542906
Entity type: Individual (NPI type 1)
Primary specialty: Physician Assistant 363A00000X
License: PA00919 (MS)
Practice address: 149 Drinkwater Rd
Bay St Louis, MS 39520-1658
Phone: (228) 467-8600
NPI assigned: Apr 21, 2025
Sex: Female
Sole proprietor: No

Organizations & group practices 2

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.

Ochsner Mississippi, LLC Internal Medicine Physician · Bay Saint Louis, MS · NPI 1538674239

Medicare reassignment Care Compare group NPD MS
Ochsner Mississippi, LLC Internal Medicine Physician · Diamondhead, MS · NPI 1316662059

NPD

Hospital & facility affiliations 1

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

Ochsner Medical Center - Hancock LLC General Acute Care Hospital · Bay Saint Louis, MS · NPI 1588629968

Care Compare affiliation Hospital

Medicare Care Compare profile

Specialty: Physician Assistant
Education: Other, 2025
Medicare assignment: Accepts the Medicare-approved amount as payment in full
Group practices: Ochsner Mississippi, LLC (98 clinicians)

Practice addresses (Care Compare)

149 Drinkwater Rd
Bay Saint Louis, MS 39520-1658
Phone (504) 842-4431

Hospital & facility affiliations

Ochsner Medical Center-Hancock Hospital · Bay Saint Louis, MS · CCN 250162

Medicare participation

Medicare fee-for-service enrollment: Enrolled in MS
Eligible to order & refer: Part B services: Yes · DME: Yes · Home health: Yes · Power mobility devices: Yes · Hospice: No

Medicare enrollment records

Enrollment ID	State	Provider type	PAC ID	Details
I20250829001849	MS	Practitioner - Physician Assistant	9739680802	Reassigns benefits to 1 organization

National Provider Directory

Medicare enrollment (NPD): Yes
Credentials: Physician Assistant

Practice roles

Organization	Specialty	Status	New patients
Ochsner Mississippi, LLC		Current since Aug 12, 2025	Accepting new patients
Ochsner Mississippi, LLC		Current since Aug 12, 2025	Accepting new patients

Locations

1514 Jefferson Hwy
New Orleans, LA 70121

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

Interoperability endpoints

Direct secure messaging: scooley2198969@direct.ochsner.org

Specialties & licenses

Specialty (taxonomy)	Code	License	State	Primary
Physician Assistant	363A00000X	PA00919	MS	Yes

Addresses

Primary practice location

149 Drinkwater Rd
Bay St Louis, MS 39520-1658

Mailing address

1615 Lewis Ave
Biloxi, MS 39531-3407
Phone (601) 410-9323

Other providers in Bay St Louis, MS

All providers in Bay St Louis, MS · Physician Assistant in Mississippi

Sources for this page

NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Record last updated by the provider on Jul 17, 2025. Information in NPPES is self-reported and not verified by CMS.
NUCC Health Care Provider Taxonomy: specialty names.
Medicare Fee-For-Service Public Provider Enrollment (CMS/PECOS): enrollments, PAC IDs and benefit reassignments.
Order and Referring (CMS).
Medicare Care Compare provider data (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.