Claire Josephson
Physician Assistant · Costa Mesa, CA
Claire Josephson is a physician assistant with a practice address in Costa Mesa, California, and NPI 1194216648, issued on May 21, 2018. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Claire Josephson
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 1637 Irvine Ave Apt F, Costa Mesa, CA 92627
- Phone
- (949) 500-2366
- Enumerated
- May 21, 2018
- Record last updated
- May 21, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Verify Claire Josephson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $297.44
13 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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.
Claire Josephson among 14,451 physician assistant records in California
Claire Josephson is one of 14,451 physician assistant records with a practice address in California. 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 2018, is newer than 52% of them.
- NPI issued2018 · 52% of these records are older, 44% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2018 · 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
37 physician assistant records list a practice address in Costa Mesa
They are 37 of the 4,286 NPPES records with a practice address in Costa Mesa, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Costa Mesa → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Christopher Burkett, P.A.Costa Mesa, CA 926271629258447
- Erin Gage, PACCosta Mesa, CA 926271710094917
- Nicholas Huey, PACosta Mesa, CA 926271881139228
- Jessica Jimenez, PA-CCosta Mesa, CA 926271306197819
- Mia'Ariarna Kilekas, PA-C, MSPACosta Mesa, CA 926271013646306
- Esther Lamb, PACosta Mesa, CA 926271700917770
- Roxanna Moridzadeh, PA-CCosta Mesa, CA 926271124679808
- Deanne Newton, MSPAS, PA-C, CNCosta Mesa, CA 926271336319839
Common questions
What is Claire Josephson's NPI number?
Claire Josephson's National Provider Identifier (NPI) is 1194216648, issued on May 21, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Claire Josephson located?
The NPPES record lists a practice address at 1637 Irvine Ave Apt F, Costa Mesa, CA, 92627. Phone: (949) 500-2366. Providers update this record themselves, so call before visiting.
How can I verify Claire Josephson's license?
Search the California board that licenses this profession; the NPPES record confirms identity 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.