John Michael Williamson, DNP, FNP-C, ARM-BC
Family Nurse Practitioner · Columbus, MS
John Michael Williamson, DNP, FNP-C, ARM-BC is a family nurse practitioner with a practice address in Columbus, Mississippi, and NPI 1336326560, issued on Jan 30, 2008. Check the license (Mississippi R853568, as entered in NPPES) with the Mississippi board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Michael Williamson
- Credential
- DNP, FNP-C, ARM-BC
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- R853568 MS
AC003026 MD
Self-reported in NPPES; status is on the state search - Practice location
- 1503 Highway 45 N, Columbus, MS 39705
- Phone
- (662) 328-9623
- Enumerated
- Jan 30, 2008
- Record last updated
- Jan 14, 2026
- Fax
- (662) 327-7477
- Medicare enrollment
- Enrolled (PECOS I20240620002459); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 1503 Highway 45 N
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alexandra Bourcy-Crandell, PA-CMedical Physician Assistant1902373095
- Mark Friloux, MDInternal Medicine Physician1679562748
- Vanita Phinisey, NP-CFamily Nurse Practitioner1518254580
Verify John Michael 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 R853568Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average family nurse practitioner in 2024
267 Medicare Part D claims for 103 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Naproxen15 claims
- Amlodipine Besylate12 claims
- Atorvastatin Calcium12 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.
Bills Medicare through one group practice
- Golden Triangle Urgent Care LLCSaltillo, MS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
104 family nurse practitioner records list a practice address in Columbus
They are 104 of the 843 NPPES records with a practice address in Columbus, and 3,798 family nurse practitioner records in Mississippi.
All 104 in Columbus → All 3,798 in Mississippi → Every provider in Columbus →
Other family nurse practitioner records in Mississippi
- Sarah Abernathy, NPJackson, MS1578580528
- Whitney Abraham, FNP-CColumbus, MS1316319353
- Brian AdamsColumbus, MS1154796365
- Carla AdamsUnion, MS1649992447
- Jody Adams, CFNPClinton, MS1780652362
- Rebecca Adams, APRNJackson, MS1205206760
- Dorothy AdcockJackson, MS1851841548
- Cody AdkinsUtica, MS1134908593
- Sonya Adkins, NPNew Albany, MS1376019471
- Jamie Agent, NP-CMeridian, MS1245889807
Common questions
What is John Michael Williamson, DNP, FNP-C, ARM-BC's NPI number?
John Michael Williamson, DNP, FNP-C, ARM-BC's National Provider Identifier (NPI) is 1336326560, issued on Jan 30, 2008. An NPI identifies a provider in billing; it is not a license.
Where is John Michael Williamson, DNP, FNP-C, ARM-BC located?
The NPPES record lists a practice address at 1503 Highway 45 N, Columbus, MS, 39705. Phone: (662) 328-9623. Providers update this record themselves, so call before visiting.
How can I verify John Michael Williamson, DNP, FNP-C, ARM-BC's license?
NPPES lists Mississippi license number R853568, as entered by the provider. Search the Mississippi board that licenses this profession; the NPPES record confirms identity only.
How much does John Michael Williamson, DNP, FNP-C, ARM-BC prescribe under Medicare Part D?
In 2024, John Michael Williamson, DNP, FNP-C, ARM-BC had 267 Medicare Part D claims for 103 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.