NPPES file of Aug 9, 2026

Joshua Koeplin-Day, PA-C

Surgical Physician Assistant · La Jolla, CA

Joshua Koeplin-Day, PA-C is a surgical physician assistant with a practice address in La Jolla, California, and NPI 1003468331, issued on Jul 16, 2019. Check the license (California PA66051, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1003468331
Name
Joshua Koeplin-Day
Credential
PA-C
Primary taxonomy
Surgical Physician Assistant 363AS0400X
License number
PA66051 CA
Self-reported in NPPES; status is on the state search
Practice location
10710 N Torrey Pines RD, La Jolla, CA 92037
Phone
(858) 554-7007
Enumerated
Jul 16, 2019
Record last updated
Jan 31, 2026
Medicare enrollment
Enrolled (PECOS I20250319000002); 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.
Download card Updates feed

8 nearest surgical physician assistant records → All 1,075 in California → Look up another NPI →

Also registered at 10710 N Torrey Pines RD

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

  1. Nicole AdamsNurse Practitioner1891167029
  2. Rachel Adrian, RN, MSN, AGACNP-BCAcute Care Nurse Practitioner1548870686
  3. Laura Alberton, M.D.Sports Medicine (Orthopaedic Surgery) Physician1992770655
  4. Sonia Ali, M.D.Hematology & Oncology Physician1730451089
  5. Danica Anderson, PA-CPhysician Assistant1811601859
  6. Jacqueline Anderson, MDSurgery Physician1912427873

Verify Joshua Koeplin-Day in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license PA66051    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 California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Bills Medicare through one group practice

  1. Scripps HealthLa Jolla, CA

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

Joshua Koeplin-Day among 1,075 surgical physician assistant records in California

Joshua Koeplin-Day, PA-C is one of 1,075 surgical physician assistant records with a practice address in California. 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 2019, is newer than 80% of them.

  • NPI issued2019 · 80% of these records are older, 16% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2024 · median 2012 among the 649 with a school on file
  • Record last updated2026 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AS0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgical Physician Assistant providers in California

There are 1,075 surgical physician assistant records in California.

All 1,075 in California → Every provider in La Jolla → Surgical Physician Assistant nationwide →

The 8 surgical physician assistant records with the nearest ZIP codes

  1. Bella Albakova, PALa Jolla, CA 920371013020809
  2. Joshua Del Homme, PALa Jolla, CA 920371922010032
  3. Desiree Evans-Claassen, P.A.La Jolla, CA 920371326194333
  4. Jonna Griggs, PA-CLa Jolla, CA 920371790288389
  5. Jodi Hirsch, P.A.La Jolla, CA 920371184789695
  6. Brenda Mann, PA-CLa Jolla, CA 920371629265194
  7. Lucia Masi, PA-CLa Jolla, CA 920371104210913
  8. Vivienne Palmer, PA-CLa Jolla, CA 920371457788663

Common questions

What is Joshua Koeplin-Day, PA-C's NPI number?

Joshua Koeplin-Day, PA-C's National Provider Identifier (NPI) is 1003468331, issued on Jul 16, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Joshua Koeplin-Day, PA-C located?

The NPPES record lists a practice address at 10710 N Torrey Pines RD, La Jolla, CA, 92037. Phone: (858) 554-7007. Providers update this record themselves, so call before visiting.

How can I verify Joshua Koeplin-Day, PA-C's license?

NPPES lists California license number PA66051, as entered by the provider. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.