Ryan L. Olson, OTR
Occupational Therapist · Irvine, CA
Ryan L. Olson, OTR is an occupational therapist with a practice address in Irvine, California, and NPI 1598226052, issued on Mar 27, 2019. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ryan L. Olson
- Credential
- OTR
- Primary taxonomy
- Occupational Therapist 225X00000X
- Practice location
- 36 Mauchly Ste A, Irvine, CA 92618
- Phone
- (949) 727-3315
- Enumerated
- Mar 27, 2019
- Record last updated
- Mar 27, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190514001017); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest occupational therapist records → All 9,244 in California → Look up another NPI →
Also registered at 36 Mauchly Ste A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jan GonzalesOccupational Therapy Assistant1215519905
- Earl Adrien Grospe, DPTPhysical Therapist1902550940
- Olivia MoscosoOccupational Therapy Assistant1053016212
- Brandon PeckhamOccupational Therapy Assistant1881121101
- Kimberly Rieff, PTAPhysical Therapy Assistant1073904785
- Vincent TuminoPhysical Therapy Assistant1093577207
Verify Ryan L. Olson 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
Bills Medicare through one group practice
- California Rehabilitation And Sports Therapy A California Physical TheIrvine, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ryan L. Olson among 9,244 occupational therapist records in California
Ryan L. Olson, OTR is one of 9,244 occupational therapist records with a practice address in California. 9% 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 53% of them.
- NPI issued2019 · 53% of these records are older, 41% newer
- In a Medicare fileYes · 9% of these records are
- In the CMS Doctors and Clinicians fileYes · 10% of these records are
- Graduated2019 · median 2018 among the 910 with a school on file
- Record last updated2019 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
107 occupational therapist records list a practice address in Irvine
They are 107 of the 7,778 NPPES records with a practice address in Irvine, and 9,244 occupational therapist records in California.
All 9,244 in California → Every provider in Irvine → Occupational Therapist nationwide →
The 8 occupational therapist records with the nearest ZIP codes
- Alistair Agujar, OTR/LIrvine, CA 926181043446743
- Mary Bremer, OTIrvine, CA 926181033405352
- Caleigh Cox, OTR/LIrvine, CA 926181851796320
- Karina Erum, OTR/LIrvine, CA 926181124254826
- Lisa Kawaguchi, OTIrvine, CA 926181174870463
- Renalani MoodleyIrvine, CA 926181124445564
- Cody Moore, OTIrvine, CA 926181346501822
- Rea Jane Padua, OTRP, OTR/LIrvine, CA 926181871817254
Common questions
What is Ryan L. Olson, OTR's NPI number?
Ryan L. Olson, OTR's National Provider Identifier (NPI) is 1598226052, issued on Mar 27, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Ryan L. Olson, OTR located?
The NPPES record lists a practice address at 36 Mauchly Ste A, Irvine, CA, 92618. Phone: (949) 727-3315. Providers update this record themselves, so call before visiting.
How can I verify Ryan L. Olson, OTR'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.