Katherine Williams, P.A.
Physician Assistant · Oklahoma City, OK
Katherine Williams, P.A. is a physician assistant with a practice address in Oklahoma City, Oklahoma, and NPI 1013155126, issued on Jan 27, 2009. Check the license (Oklahoma 1793, as entered in NPPES) with the Oklahoma board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine Williams
- Credential
- P.A.
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 1793 OK
Self-reported in NPPES; status is on the state search - Practice location
- 1801 N Broadway Ave, Oklahoma City, OK 73103
- Phone
- (405) 528-1936
- Enumerated
- Jan 27, 2009
- Record last updated
- Jan 27, 2009 (not updated in 17 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20120411000482); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 1,870 in Oklahoma → Look up another NPI →
Also registered at 1801 N Broadway Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Allyson Kraker, PA-CMedical Physician Assistant1740518182
Verify Katherine Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oklahoma board licenses this profession
Search for license 1793Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average physician assistant in 2024
294 Medicare Part D claims for 214 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Doxycycline Hyclate38 claims
- Amoxicillin35 claims
- Azithromycin35 claims
- Cephalexin29 claims
- Amoxicillin-Clavulanate Potass28 claims
- Prednisone22 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
- Advance Physicians GroupNorman, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Williams among 1,870 physician assistant records in Oklahoma
Katherine Williams, P.A. is one of 1,870 physician assistant records with a practice address in Oklahoma. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 29% of them.
- NPI issued2009 · 29% of these records are older, 67% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2008 · median 2017 among the 1,246 with a school on file
- Record last updated2009 · 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 363A00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
673 physician assistant records list a practice address in Oklahoma City
They are 673 of the 22,359 NPPES records with a practice address in Oklahoma City, and 1,870 physician assistant records in Oklahoma.
All 1,870 in Oklahoma → Every provider in Oklahoma City → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Amber Drennen, PA-COklahoma City, OK 731031811294754
- Kimberly Franks, PA-COklahoma City, OK 731031386123644
- Natalie Green, P.A.Oklahoma City, OK 731031538308531
- Margaret Jensen, PA-COklahoma City, OK 731031982468252
- Minhuyen Nguyen, PA-COklahoma City, OK 731031790439818
- Kennedi Puckett, PAOklahoma City, OK 731031861197295
- Ginger Rader, PAOklahoma City, OK 731031396511960
- Kelsey Rapp, PA-COklahoma City, OK 731031639427164
Common questions
What is Katherine Williams, P.A.'s NPI number?
Katherine Williams, P.A.'s National Provider Identifier (NPI) is 1013155126, issued on Jan 27, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Williams, P.A. located?
The NPPES record lists a practice address at 1801 N Broadway Ave, Oklahoma City, OK, 73103. Phone: (405) 528-1936. Providers update this record themselves, so call before visiting.
How can I verify Katherine Williams, P.A.'s license?
NPPES lists Oklahoma license number 1793, as entered by the provider. Search the Oklahoma board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine Williams, P.A. prescribe under Medicare Part D?
In 2024, Katherine Williams, P.A. had 294 Medicare Part D claims for 214 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.