Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Anna Williamson, FNP

Individual provider Family Nurse Practitioner · NPI 1447807805

Anna Williamson, FNP is a Nurse Practitioner in Hattiesburg, Mississippi. Qualified in 2019, 7 years ago. Practices with Hattiesburg Clinic PA, a 530-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Louisiana and Mississippi.

Years since qualifying
7
Licensed in
LA, MS
In the registry since
2019
Specialties on file
2
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

See every abbreviation used in this directory →

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Practice location Address checks out

415 S 28th Ave
Hattiesburg, MS 39401-7246
Phone: (601) 268-5680
Fax: (601) 579-5240
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 433 Plaza St Ste 3a, Bogalusa, LA 70427-3729 — (985) 730-6970
  • 648 Crestwood Drive, Covington, LA 70433 — (985) 805-2555
  • 1150 Robert Blvd Ste 220, Slidell, LA 70458-2006 — (985) 805-2555

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 903379 (MS)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 205062 (LA)

Record details

NPI number1447807805
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorYes
NPI enumeratedAugust 21, 2019
Last updated in NPPESSeptember 15, 2021
Certification dateSeptember 15, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Hattiesburg Clinic Pa — 530 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients804
Services billed 1,056 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $740 52 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Hattiesburg Clinic PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 530 clinicians in the practice; 12 are shown here.

Other providers in Hattiesburg