Caithleen Paterson Zikorus, N.P.
Family Nurse Practitioner · Gualala, CA
Caithleen Paterson Zikorus, N.P. is a family nurse practitioner with a practice address in Gualala, California, and NPI 1831494293, issued on Jan 17, 2011. Check the license (California 95019942, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Caithleen Paterson Zikorus
- Credential
- N.P.
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 95019942 CA
336535 NY
Self-reported in NPPES; status is on the state search - Practice location
- 46900 Ocean Dr, Gualala, CA 95445
- Phone
- (707) 884-4005
- Enumerated
- Jan 17, 2011
- Record last updated
- Dec 5, 2022
- Fax
- (707) 884-4625
- Medicare enrollment
- Enrolled (PECOS I20130521000390); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Stony Brook, School Of Medicine, 2010
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 46900 Ocean Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joanne Brooks, R.N.Family Medicine Physician1952494817
- Lois Falk, N.P.Nurse Practitioner1346332335
- Mark Kal, M.D.Family Medicine Physician1316937931
- Leon Koenck, PA CPhysician Assistant1164555769
- Elizabeth Nagle, FNPFamily Nurse Practitioner1851379705
- Roberta Rams, D.D.S.General Practice Dentistry1780776682
Verify Caithleen Paterson Zikorus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95019942Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2% fewer Medicare Part D claims than the average family nurse practitioner in 2024
1,275 Medicare Part D claims for 373 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 12 claims were for opioids.
Most prescribed
- Clonazepam67 claims
- Atorvastatin Calcium54 claims
- Amlodipine Besylate49 claims
- Sertraline Hcl46 claims
- Lisinopril35 claims
- Escitalopram Oxalate33 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 73.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Refuah Health Center IncSouth Fallsburg, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Caithleen Paterson Zikorus among 16,966 family nurse practitioner records in California
Caithleen Paterson Zikorus, N.P. 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 2011, is newer than 19% of them.
- NPI issued2011 · 19% of these records are older, 79% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated2010 · median 2019 among the 6,793 with a school on file
- Record last updated2022 · 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).
3 family nurse practitioner records list a practice address in Gualala
They are 3 of the 33 NPPES records with a practice address in Gualala, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Gualala → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Holly Hamm, FNP-CGualala, CA 954451285416123
- Elizabeth Nagle, FNPGualala, CA 954451851379705
- Penelope Applegarth, FNPGuerneville, CA 954461578726139
- Maria Baron, NPGuerneville, CA 954461891319455
- Patricia Cerone, NPGuerneville, CA 954461356178933
- Andrea Ginsberg, NPGuerneville, CA 954461376266163
- Surani Hayre-Kwan, FNPGuerneville, CA 954461134135924
- Jennifer Herman, FNPGuerneville, CA 954461760997308
Common questions
What is Caithleen Paterson Zikorus, N.P.'s NPI number?
Caithleen Paterson Zikorus, N.P.'s National Provider Identifier (NPI) is 1831494293, issued on Jan 17, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Caithleen Paterson Zikorus, N.P. located?
The NPPES record lists a practice address at 46900 Ocean Dr, Gualala, CA, 95445. Phone: (707) 884-4005. Providers update this record themselves, so call before visiting.
How can I verify Caithleen Paterson Zikorus, N.P.'s license?
NPPES lists California license number 95019942, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Caithleen Paterson Zikorus, N.P. prescribe under Medicare Part D?
In 2024, Caithleen Paterson Zikorus, N.P. had 1,275 Medicare Part D claims for 373 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Caithleen Paterson Zikorus, N.P.'s MIPS final score?
The 2023 MIPS final score is 73.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.