NPPES file of Aug 9, 2026

Tia Dawn Derritt-Withers, PA-C

Physician Assistant · Topeka, KS

Tia Dawn Derritt-Withers, PA-C is a physician assistant with a practice address in Topeka, Kansas, and NPI 1992441034, issued on May 11, 2022. Check the license (Kansas 15-02637, as entered in NPPES) with the Kansas 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
1992441034
Name
Tia Dawn Derritt-Withers
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
15-02637 KS
Self-reported in NPPES; status is on the state search
Practice location
823 SW Mulvane St, Topeka, KS 66606
Phone
(785) 580-0369
Enumerated
May 11, 2022
Record last updated
Jun 2, 2026
Fax
(785) 354-0519
Medicare enrollment
Enrolled (PECOS I20220805002956); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 823 SW Mulvane St

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

  1. Thomas Alderson, MDNephrology Physician1942404439
  2. Brock Alexander, MDAnesthesiology Physician1841634631
  3. Benjamin Andrews, CRNACertified Registered Nurse Anesthetist1619946803
  4. Michelle Andrews, CRNACertified Registered Nurse Anesthetist1023087210
  5. Martha Badger, APRNNurse Practitioner1891045779
  6. Brinton Baker, PA-CPhysician Assistant1649586470

Verify Tia Dawn Derritt-Withers in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Kansas board licenses this profession
    Search for license 15-02637
    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 Kansas license search

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95% fewer Medicare Part D claims than the average physician assistant in 2024

39 Medicare Part D claims for 32 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 25 claims were for opioids.

  1. Tia Derritt-Withers39
  2. Specialty average830

Most prescribed

  1. Oxycodone Hcl15 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

  1. Cotton-O'Neil Clinic Revocable TrustTopeka, KS

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Tia Dawn Derritt-Withers among 1,329 physician assistant records in Kansas

Tia Dawn Derritt-Withers, PA-C is one of 1,329 physician assistant records with a practice address in Kansas. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 78% of them.

  • NPI issued2022 · 78% of these records are older, 17% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated2022 · median 2015 among the 868 with a school on file
  • Record last updated2026 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Kansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

105 physician assistant records list a practice address in Topeka

They are 105 of the 4,851 NPPES records with a practice address in Topeka, and 1,329 physician assistant records in Kansas.

The 8 physician assistant records with the nearest ZIP codes

  1. Lisa Austin, PA-CTopeka, KS 666061114977147
  2. Christopher Cote, PATopeka, KS 666061417955121
  3. Katherine Edmonds, PA-CTopeka, KS 666061790750578
  4. Valerie Gann, PA-CTopeka, KS 666061700858693
  5. Kathy Hershberger, PATopeka, KS 666061255332680
  6. Rebekah Johnston, PA-CTopeka, KS 666061184821274
  7. Michael Kinsman, PA-CTopeka, KS 666061730156605
  8. Davienne Koci, PA-CTopeka, KS 666061619953718

Common questions

What is Tia Dawn Derritt-Withers, PA-C's NPI number?

Tia Dawn Derritt-Withers, PA-C's National Provider Identifier (NPI) is 1992441034, issued on May 11, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Tia Dawn Derritt-Withers, PA-C located?

The NPPES record lists a practice address at 823 SW Mulvane St, Topeka, KS, 66606. Phone: (785) 580-0369. Providers update this record themselves, so call before visiting.

How can I verify Tia Dawn Derritt-Withers, PA-C's license?

NPPES lists Kansas license number 15-02637, as entered by the provider. Search the Kansas board that licenses this profession; the NPPES record confirms identity only.

How much does Tia Dawn Derritt-Withers, PA-C prescribe under Medicare Part D?

In 2024, Tia Dawn Derritt-Withers, PA-C had 39 Medicare Part D claims for 32 beneficiaries; the average among physician assistant prescribers was 830. 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.