Cathy Lambert Estill, FNP
Family Nurse Practitioner · Ojai, CA
Cathy Lambert Estill, FNP is a family nurse practitioner with a practice address in Ojai, California, and NPI 1477983005, issued on Nov 18, 2013. Check the license (California 199592, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Cathy Lambert Estill
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 199592 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1202 Maricopa Hwy Ste C, Ojai, CA 93023
- Phone
- (805) 640-0068
- Enumerated
- Nov 18, 2013
- Record last updated
- Nov 18, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (805) 640-1749
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 1202 Maricopa Hwy Ste C
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kristyna Fong, D.O.Family Medicine Physician1801294657
- Michelle Griffith, FNPFamily Nurse Practitioner1326679762
- Andrew Mace, DOFamily Medicine Physician1760063044
Verify Cathy Lambert Estill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 199592Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average family nurse practitioner in 2024
501 Medicare Part D claims for 115 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium53 claims
- Metformin Hcl28 claims
- Levothyroxine Sodium24 claims
- Lisinopril24 claims
- Hydrochlorothiazide20 claims
- Albuterol Sulfate Hfa18 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.
Cathy Lambert Estill among 16,966 family nurse practitioner records in California
Cathy Lambert Estill, FNP 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 fileNo · 40% of these records are
- Record last updated2013 · 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).
9 family nurse practitioner records list a practice address in Ojai
They are 9 of the 271 NPPES records with a practice address in Ojai, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Ojai → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Linda ConradOjai, CA 930231982810073
- Laura Farhat, APN-BC FNPOjai, CA 930231194937102
- Michelle Griffith, FNPOjai, CA 930231326679762
- Joceline Lam, FNP-COjai, CA 930231346769700
- Deborah Maragopoulos, MSN FNPOjai, CA 930231730219171
- Mary Nelson, FNP-COjai, CA 930231285846220
- Patti Wicklund, FNP-BCOjai, CA 930231780373522
- Mary Ann Williamson, R.N. F.N.P.Ojai, CA 930231255756276
Common questions
What is Cathy Lambert Estill, FNP's NPI number?
Cathy Lambert Estill, FNP's National Provider Identifier (NPI) is 1477983005, issued on Nov 18, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Cathy Lambert Estill, FNP located?
The NPPES record lists a practice address at 1202 Maricopa Hwy Ste C, Ojai, CA, 93023. Phone: (805) 640-0068. Providers update this record themselves, so call before visiting.
How can I verify Cathy Lambert Estill, FNP's license?
NPPES lists California license number 199592, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Cathy Lambert Estill, FNP prescribe under Medicare Part D?
In 2024, Cathy Lambert Estill, FNP had 501 Medicare Part D claims for 115 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.