Kaitlin Williams, PA-C
Physician Assistant · Santa Barbara, CA
Kaitlin Williams, PA-C is a physician assistant with a practice address in Santa Barbara, California, and NPI 1710612411, issued on Jul 18, 2022. Check the license (California 63623, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kaitlin Williams
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 63623 CA
Self-reported in NPPES; status is on the state search - Practice location
- 601 E Arrellaga St Ste 101, Santa Barbara, CA 93103
- Phone
- (805) 687-5538
- Enumerated
- Jul 18, 2022
- Record last updated
- Mar 11, 2024
- Fax
- (805) 687-5530
- Entity
- Type 1 · individual
Also registered at 601 E Arrellaga St Ste 101
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alexis Dougherty, MDDermatology Physician1689986507
- Mary Hartman, M.D.MOHS-Micrographic Surgery Physician1437156684
Verify Kaitlin Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 63623Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average physician assistant in 2024
74 Medicare Part D claims for 41 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Mupirocin15 claims
- Triamcinolone Acetonide13 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.
Industry payments in 2024: $80.19
4 payments; by number, the most common kind was food and beverage; the largest payer was Verrica Pharmaceuticals Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
107 physician assistant records list a practice address in Santa Barbara
They are 107 of the 5,328 NPPES records with a practice address in Santa Barbara, and 14,451 physician assistant records in California.
All 107 in Santa Barbara → All 14,451 in California → Every provider in Santa Barbara →
Other physician assistant records in California
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- Barrie Abbott, PA-CAnza, CA1861602575
- Elizabeth Abbott, PA-CSan Diego, CA1437540762
- Terri Abbott, P.A.La Jolla, CA1811165566
- Angela Abboud, MMS, PA-CSanta Rosa, CA1114399334
Common questions
What is Kaitlin Williams, PA-C's NPI number?
Kaitlin Williams, PA-C's National Provider Identifier (NPI) is 1710612411, issued on Jul 18, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Kaitlin Williams, PA-C located?
The NPPES record lists a practice address at 601 E Arrellaga St Ste 101, Santa Barbara, CA, 93103. Phone: (805) 687-5538. Providers update this record themselves, so call before visiting.
How can I verify Kaitlin Williams, PA-C's license?
NPPES lists California license number 63623, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Kaitlin Williams, PA-C prescribe under Medicare Part D?
In 2024, Kaitlin Williams, PA-C had 74 Medicare Part D claims for 41 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.