NPPES file of Aug 9, 2026

Thomas Alexander Koen, APRN,AGNP-C

Nurse Practitioner · Birmingham, AL

Thomas Alexander Koen, APRN,AGNP-C is a nurse practitioner with a practice address in Birmingham, Alabama, and NPI 1801353503, issued on Feb 28, 2019. Check the license (Alabama 1128686, as entered in NPPES) with the Alabama board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1801353503
Name
Thomas Alexander Koen
Credential
APRN,AGNP-C
Primary taxonomy
Nurse Practitioner 363L00000X
License numbers
1128686 AL
APRN11029288 FL
5020445 NC
APRN.CNP.0037904 OH
28796 SC
and 2 more
Self-reported in NPPES; status is on the state search
Practice location
1 Perimeter Park S Ste 195A, Birmingham, AL 35243
Phone
(668) 490-6928
Enumerated
Feb 28, 2019
Record last updated
May 14, 2025
Fax
(888) 973-8821
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1 Perimeter Park S Ste 195A

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Emily Cobar, RN, FNPNurse Practitioner1528575933
  2. Maggie Collins, APRN,NP-CNurse Practitioner1255870408
  3. Ta-Nisha Emmanuel, DNP, APRN, FNP-CNurse Practitioner1194105171
  4. Paris Foster, FNP-CFamily Medicine Physician1629833884
  5. Robert Greaud, ARNP, NP-CNurse Practitioner1457613390
  6. Lydia Hodge, APRN,FNPFamily Nurse Practitioner1578136701

Verify Thomas Alexander Koen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Alabama board licenses this profession
    Search for license 1128686
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Alabama license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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75% fewer Medicare Part D claims than the average nurse practitioner in 2024

274 Medicare Part D claims for 113 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.

  1. Thomas Koen274
  2. Specialty average1,109

Most prescribed

  1. Atorvastatin Calcium41 claims
  2. Albuterol Sulfate Hfa36 claims
  3. Losartan Potassium21 claims
  4. Rosuvastatin Calcium14 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.

Thomas Alexander Koen among 1,442 nurse practitioner records in Alabama

Thomas Alexander Koen, APRN,AGNP-C is one of 1,442 nurse practitioner records with a practice address in Alabama. 75% 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 62% of them.

  • NPI issued2019 · 62% of these records are older, 31% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 59% of these records are
  • Record last updated2025 · 49% 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 Alabama practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

302 nurse practitioner records list a practice address in Birmingham

They are 302 of the 15,795 NPPES records with a practice address in Birmingham, and 1,442 nurse practitioner records in Alabama.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Sara ByarsVestavia, AL 352431437609096
  2. Jennifer Cothron, NURSE PRACTITONERBirmingham, AL 352431083067037
  3. Jennifer Devilleneuve, CRNPMountain Brk, AL 352431962462374
  4. Ta-Nisha Emmanuel, DNP, APRN, FNP-CBirmingham, AL 352431194105171
  5. Robert Greaud, ARNP, NP-CBirmingham, AL 352431457613390
  6. Christopher Huffstutler, MSN, CRNPBirmingham, AL 352431891078564
  7. Allison Joyner, CRNPBirmingham, AL 352431578607925
  8. Rachael Rutledge, CRNPBirmingham, AL 352431710118666

Common questions

What is Thomas Alexander Koen, APRN,AGNP-C's NPI number?

Thomas Alexander Koen, APRN,AGNP-C's National Provider Identifier (NPI) is 1801353503, issued on Feb 28, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Alexander Koen, APRN,AGNP-C located?

The NPPES record lists a practice address at 1 Perimeter Park S Ste 195A, Birmingham, AL, 35243. Phone: (668) 490-6928. Providers update this record themselves, so call before visiting.

How can I verify Thomas Alexander Koen, APRN,AGNP-C's license?

NPPES lists Alabama license number 1128686, as entered by the provider. Search the Alabama board that licenses this profession; the NPPES record confirms identity only.

How much does Thomas Alexander Koen, APRN,AGNP-C prescribe under Medicare Part D?

In 2024, Thomas Alexander Koen, APRN,AGNP-C had 274 Medicare Part D claims for 113 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.