Katrina Ann Williamson
Rheumatology Physician · Birmingham, AL
Katrina Ann Williamson is a rheumatology physician with a practice address in Birmingham, Alabama, and NPI 1275038655, issued on Mar 27, 2018. Check the license (Alabama MD.49177, as entered in NPPES) on the Alabama Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Katrina Ann Williamson
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License numbers
- MD.49177 AL
29231 MN
65960 MN
Self-reported in NPPES; status is on the state search - Practice location
- 619 19TH St S, Birmingham, AL 35233
- Phone
- (205) 934-4011
- Enumerated
- Mar 27, 2018
- Record last updated
- Aug 27, 2024
- Medicare enrollment
- Enrolled (PECOS I20241106003753); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 2018
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 97 in Alabama → Look up another NPI →
Also registered at 619 19TH St S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Thaer Abdelfattah, M.D.Gastroenterology Physician1346796091
- Mackenzie AbrahamSurgery Physician1033738620
- Janice Abrams, CRNPAcute Care Nurse Practitioner1174157937
- Stacie Abruzzio, PA-CPhysician Assistant1710616842
- Gregory Adrian, DOEmergency Medicine Physician1548919939
- Faris AhmedNephrology Physician1881805372
Verify Katrina Ann Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersAlabama Board of Medical Examiners
Search for license MD.49177Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average rheumatology physician in 2024
335 Medicare Part D claims for 94 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims. 15 claims were for opioids.
Most prescribed
- Prednisone53 claims
- Methotrexate46 claims
- Hydroxychloroquine Sulfate34 claims
- Sulfamethoxazole-Trimethoprim26 claims
- Alendronate Sodium25 claims
- Allopurinol12 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
- University OF Alabama Health Services Foundation, PCBirmingham, AL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katrina Ann Williamson among 97 rheumatology physician records in Alabama
Katrina Ann Williamson is one of 97 rheumatology physician records with a practice address in Alabama. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 94% of them.
- NPI issued2018 · 94% of these records are older, 2% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2018 · median 2004 among the 71 with a school on file
- Record last updated2024 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Alabama practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Alabama
There are 97 rheumatology physician records in Alabama.
All 97 in Alabama → Every provider in Birmingham → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Graciela Alarcon, MDBirmingham, AL 352331528012879
- Amanda AlexanderBirmingham, AL 352331083053813
- James Andrews, M.D.Birmingham, AL 352331407084809
- Jeffrey Curtis, MDBirmingham, AL 352331669415725
- Samir Dalvi, MDBirmingham, AL 352331598977704
- Maria DanilaBirmingham, AL 352331649485020
- Barri Fessler, MDBirmingham, AL 352331164466835
- Angelo Gaffo-LlontopBirmingham, AL 352331780899179
Common questions
What is Katrina Ann Williamson's NPI number?
Katrina Ann Williamson's National Provider Identifier (NPI) is 1275038655, issued on Mar 27, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Katrina Ann Williamson located?
The NPPES record lists a practice address at 619 19TH St S, Birmingham, AL, 35233. Phone: (205) 934-4011. Providers update this record themselves, so call before visiting.
How can I verify Katrina Ann Williamson's license?
NPPES lists Alabama license number MD.49177, as entered by the provider. Search the Alabama Board of Medical Examiners at https://www.albme.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katrina Ann Williamson prescribe under Medicare Part D?
In 2024, Katrina Ann Williamson had 335 Medicare Part D claims for 94 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.