Ann Kuhlman Williamson, APRN
Nurse Practitioner · Los Angeles, CA
Ann Kuhlman Williamson, APRN is a nurse practitioner with a practice address in Los Angeles, California, and NPI 1801316765, issued on Jun 22, 2017. Check the license (California 21769, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ann Kuhlman Williamson
- Credential
- APRN
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 21769 CA
Self-reported in NPPES; status is on the state search - Practice location
- 757 Westwood Plz, Los Angeles, CA 90095
- Phone
- (310) 562-4713
- Enumerated
- Jun 22, 2017
- Record last updated
- Feb 20, 2026
- Medicare enrollment
- Enrolled (PECOS I20190228002092); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →
Also registered at 757 Westwood Plz
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sebiha AbdullahiStudent in an Organized Health Care Education/Training Program1457938235
- Tatiana AbdulnourStudent in an Organized Health Care Education/Training Program1700724648
Verify Ann Kuhlman Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 21769Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average nurse practitioner in 2024
55 Medicare Part D claims for 21 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
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.
The practice group's MIPS final score for 2023 (Medicare payment program): 94.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- The Regents OF The University OF CaliforniaLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ann Kuhlman Williamson among 8,223 nurse practitioner records in California
Ann Kuhlman Williamson, APRN is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 52% of them.
- NPI issued2017 · 52% of these records are older, 44% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 42% of these records are
- Graduated2018 · median 2017 among the 3,425 with a school on file
- Record last updated2026 · 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 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nurse Practitioner providers in California
There are 8,223 nurse practitioner records in California.
All 8,223 in California → Every provider in Los Angeles → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Brian Barnes, NPLos Angeles, CA 900951689782831
- Cynthia Cabatan-Awang, NPLos Angeles, CA 900951588689616
- Suzette Chafey, NPLos Angeles, CA 900951619901998
- Nanette Fong, NPLos Angeles, CA 900951154355758
- Giovanni Frias, NPLos Angeles, CA 900951699709972
- Liana Garrett, RNPLos Angeles, CA 900951801984679
- Stacey Green, NPLos Angeles, CA 900951053374397
- Vilayphone Hwang, PNPLos Angeles, CA 900951629060157
Common questions
What is Ann Kuhlman Williamson, APRN's NPI number?
Ann Kuhlman Williamson, APRN's National Provider Identifier (NPI) is 1801316765, issued on Jun 22, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Ann Kuhlman Williamson, APRN located?
The NPPES record lists a practice address at 757 Westwood Plz, Los Angeles, CA, 90095. Phone: (310) 562-4713. Providers update this record themselves, so call before visiting.
How can I verify Ann Kuhlman Williamson, APRN's license?
NPPES lists California license number 21769, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Ann Kuhlman Williamson, APRN prescribe under Medicare Part D?
In 2024, Ann Kuhlman Williamson, APRN had 55 Medicare Part D claims for 21 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Ann Kuhlman Williamson, APRN's MIPS final score?
The 2023 MIPS final score is 94.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.