Karizza Asper, DNP
Family Nurse Practitioner · Irvine, CA
Karizza Asper, DNP is a family nurse practitioner with a practice address in Irvine, California, and NPI 1316287055, issued on Feb 16, 2013. Check the license (California 22602, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karizza Asper
- Credential
- DNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 22602 CA
620186 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4950 Barranca Pkwy Ste 104, Irvine, CA 92604
- Phone
- (949) 857-1248
- Enumerated
- Feb 16, 2013
- Record last updated
- Dec 30, 2025
- Fax
- (949) 559-1165
- Medicare enrollment
- Enrolled (PECOS I20141017002374); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 4950 Barranca Pkwy Ste 104
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alexandra Kocher, NPFamily Nurse Practitioner1013579952
- Nancy McGinn, RN,MSN,FNP-BCFamily Nurse Practitioner1043254998
- Mendy Nehrbass, FNP-CFamily Nurse Practitioner1902308810
- Mary Irene Rey, PA-CPhysician Assistant1770871576
Verify Karizza Asper in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 22602Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average family nurse practitioner in 2024
433 Medicare Part D claims for 307 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Doxycycline Hyclate43 claims
- Amoxicillin-Clavulanate Potass33 claims
- Nitrofurantoin Mono-Macro29 claims
- Ofloxacin29 claims
- Albuterol Sulfate Hfa25 claims
- Sulfamethoxazole-Trimethoprim24 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.
Industry payments in 2024: $284.36
10 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 99,489 providers of this specialty with any payment received $650.95 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.
Bills Medicare through 3 group practices
- Coastal Family Medicine IncIrvine, CA
- Memorialcare Medical FoundationIrvine, CA
- Sun Medical Group IncLadera Ranch, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karizza Asper among 16,966 family nurse practitioner records in California
Karizza Asper, DNP is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 24% of them.
- NPI issued2013 · 24% of these records are older, 73% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated2012 · median 2019 among the 6,793 with a school on file
- Record last updated2025 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
152 family nurse practitioner records list a practice address in Irvine
They are 152 of the 7,778 NPPES records with a practice address in Irvine, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Irvine → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Romina Francesca Bagsic, FNP-CIrvine, CA 926041932565223
- Keri Blasingame, NPIrvine, CA 926041184016230
- Sarah Campbell, N.P.Irvine, CA 926041881967040
- Nancy Evans, RNCIrvine, CA 926041679693055
- Lixia Goble, NP-CIrvine, CA 926041699830356
- Nancy McGinn, RN,MSN,FNP-BCIrvine, CA 926041043254998
- Salma NawabiIrvine, CA 926041013197946
- Margaret Newton McMillan, FNPIrvine, CA 926041821213778
Common questions
What is Karizza Asper, DNP's NPI number?
Karizza Asper, DNP's National Provider Identifier (NPI) is 1316287055, issued on Feb 16, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Karizza Asper, DNP located?
The NPPES record lists a practice address at 4950 Barranca Pkwy Ste 104, Irvine, CA, 92604. Phone: (949) 857-1248. Providers update this record themselves, so call before visiting.
How can I verify Karizza Asper, DNP's license?
NPPES lists California license number 22602, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Karizza Asper, DNP prescribe under Medicare Part D?
In 2024, Karizza Asper, DNP had 433 Medicare Part D claims for 307 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.