Katie Lynn Doolittle, PA-C
Physician Assistant · La Jolla, CA
Katie Lynn Doolittle, PA-C is a physician assistant with a practice address in La Jolla, California, and NPI 1134804610, issued on Jun 21, 2023. Check the license (California 62704, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katie Lynn Doolittle
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- 62704 CA
PA62704 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9850 Genesee Ave, La Jolla, CA 92037
- Phone
- (858) 626-5900
- Enumerated
- Jun 21, 2023
- Record last updated
- Feb 25, 2025
- Medicare enrollment
- Enrolled (PECOS I20250407001691); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 9850 Genesee Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Katie Lynn Doolittle in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 62704Check 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
77 Medicare Part D claims for 35 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Hydroxychloroquine Sulfate23 claims
- Methotrexate17 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.
Bills Medicare through one group practice
- Scripps HealthLa Jolla, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katie Lynn Doolittle among 14,451 physician assistant records in California
Katie Lynn Doolittle, PA-C 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 2023, is newer than 80% of them.
- NPI issued2023 · 80% of these records are older, 13% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2023 · median 2018 among the 7,214 with a school on file
- Record last updated2025 · 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).
136 physician assistant records list a practice address in La Jolla
They are 136 of the 3,648 NPPES records with a practice address in La Jolla, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in La Jolla → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Heather Bonaguidi, P.A.La Jolla, CA 920371669458691
- Abha Bosworth, PALa Jolla, CA 920371629067053
- Daniel Collins, P.A.La Jolla, CA 920371548247158
- Doris Elias, P.A.La Jolla, CA 920371457338089
- Karen Fetzer, P.A.-C.La Jolla, CA 920371063490761
- Susan Gilroy, P.A.-C.La Jolla, CA 920371992783575
- Madonna Guzman, P.A.-C.La Jolla, CA 920371871571455
- Christy Kerr, P.A.-C.La Jolla, CA 920371184602336
Common questions
What is Katie Lynn Doolittle, PA-C's NPI number?
Katie Lynn Doolittle, PA-C's National Provider Identifier (NPI) is 1134804610, issued on Jun 21, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Katie Lynn Doolittle, PA-C located?
The NPPES record lists a practice address at 9850 Genesee Ave, La Jolla, CA, 92037. Phone: (858) 626-5900. Providers update this record themselves, so call before visiting.
How can I verify Katie Lynn Doolittle, PA-C's license?
NPPES lists California license number 62704, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Katie Lynn Doolittle, PA-C prescribe under Medicare Part D?
In 2024, Katie Lynn Doolittle, PA-C had 77 Medicare Part D claims for 35 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.