Katherine Anne Hylan, NP
Nurse Practitioner · Oceanside, CA
Katherine Anne Hylan, NP is a nurse practitioner with a practice address in Oceanside, California, and NPI 1538516240, issued on May 23, 2016. Check the license (California 95005707, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine Anne Hylan
- Credential
- NP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- 95005707 CA
235794 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4629 Calle DE Casitas, Oceanside, CA 92057
- Phone
- (760) 736-6703
- Enumerated
- May 23, 2016
- Record last updated
- Dec 4, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →
Verify Katherine Anne Hylan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95005707Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average nurse practitioner in 2024
46 Medicare Part D claims for 18 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
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.
Katherine Anne Hylan among 8,223 nurse practitioner records in California
Katherine Anne Hylan, NP is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 48% of them.
- NPI issued2016 · 48% of these records are older, 48% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · 42% of these records are
- Record last updated2019 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nurse Practitioner providers in California
There are 8,223 nurse practitioner records in California.
All 8,223 in California → Every provider in Oceanside → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Megan Chiriboga, NPOceanside, CA 920571942931589
- Sang Huynh, FNPOceanside, CA 920571376196097
- Alexa LanzaOceanside, CA 920571699608018
- Amanda LaurinoOceanside, CA 920571871469361
- Leslie Bishop, NPOceanside, CA 920561669941878
- Laurie Brebrick, MSNOceanside, CA 920581750386330
- Lori Fisher-Gamez, NURSE PRACTITIONEROceanside, CA 920561558861740
- Natalie Gonzales, FNP- BC, MSN, BSNOceanside, CA 920581255669370
Common questions
What is Katherine Anne Hylan, NP's NPI number?
Katherine Anne Hylan, NP's National Provider Identifier (NPI) is 1538516240, issued on May 23, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Anne Hylan, NP located?
The NPPES record lists a practice address at 4629 Calle DE Casitas, Oceanside, CA, 92057. Phone: (760) 736-6703. Providers update this record themselves, so call before visiting.
How can I verify Katherine Anne Hylan, NP's license?
NPPES lists California license number 95005707, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine Anne Hylan, NP prescribe under Medicare Part D?
In 2024, Katherine Anne Hylan, NP had 46 Medicare Part D claims for 18 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.