Anna Williamson, FNP
Nurse Practitioner · Hattiesburg, MS
Anna Williamson, FNP is a nurse practitioner with a practice address in Hattiesburg, Mississippi, and NPI 1447807805, issued on Aug 21, 2019. Check the license (Mississippi 903379, as entered in NPPES) with the Mississippi board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Anna Williamson
- Credential
- FNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- 903379 MS
205062 LA
Self-reported in NPPES; status is on the state search - Practice location
- 415 S 28TH Ave, Hattiesburg, MS 39401
- Phone
- (601) 268-5680
- Enumerated
- Aug 21, 2019
- Record last updated
- Sep 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (601) 579-5240
- Medicaid ID
- 02679793 MS
- Medicare enrollment
- Enrolled (PECOS I20200413001900); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 1,075 in Mississippi → Look up another NPI →
Also registered at 415 S 28TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Anna Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Mississippi board licenses this profession
Search for license 903379Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.6 times the Medicare Part D claims of the average nurse practitioner in 2024
3,987 Medicare Part D claims for 1,274 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
Most prescribed
- Pantoprazole Sodium626 claims
- Famotidine522 claims
- Sod Sulf-Potass Sulf-Mag Sulf312 claims
- Omeprazole269 claims
- Linzess232 claims
- Dicyclomine Hcl179 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,063.99
75 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Hattiesburg Clinic PAHattiesburg, MS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Anna Williamson among 1,075 nurse practitioner records in Mississippi
Anna Williamson, FNP is one of 1,075 nurse practitioner records with a practice address in Mississippi. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 59% of them.
- NPI issued2019 · 59% of these records are older, 33% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2019 · median 2017 among the 686 with a school on file
- Record last updated2021 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
73 nurse practitioner records list a practice address in Hattiesburg
They are 73 of the 2,569 NPPES records with a practice address in Hattiesburg, and 1,075 nurse practitioner records in Mississippi.
All 1,075 in Mississippi → Every provider in Hattiesburg → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Olivia Barnard, CNPHattiesburg, MS 394011548508609
- Matthew Bolton, CNPHattiesburg, MS 394011891163598
- Julie Cooley, NPHattiesburg, MS 394011538208830
- Annelle Dugas, FNPHattiesburg, MS 394011831555002
- Sarah Kelly, DCNPHattiesburg, MS 394011659507564
- Christie Ladner, FNPHattiesburg, MS 394011922049980
- Marcie Lee, NP-CHattiesburg, MS 394011104243195
- Jessica MageeHattiesburg, MS 394011932407947
Common questions
What is Anna Williamson, FNP's NPI number?
Anna Williamson, FNP's National Provider Identifier (NPI) is 1447807805, issued on Aug 21, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Anna Williamson, FNP located?
The NPPES record lists a practice address at 415 S 28TH Ave, Hattiesburg, MS, 39401. Phone: (601) 268-5680. Providers update this record themselves, so call before visiting.
How can I verify Anna Williamson, FNP's license?
NPPES lists Mississippi license number 903379, as entered by the provider. Search the Mississippi board that licenses this profession; the NPPES record confirms identity only.
How much does Anna Williamson, FNP prescribe under Medicare Part D?
In 2024, Anna Williamson, FNP had 3,987 Medicare Part D claims for 1,274 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.