Chelsea L. Tiedemann, FNP
Nurse Practitioner · Oxnard, CA
Chelsea L. Tiedemann, FNP is a nurse practitioner with a practice address in Oxnard, California, and NPI 1912320433, issued on Feb 4, 2014. Check the license (California 23773, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Chelsea L. Tiedemann
- Credential
- FNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 23773 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2921 Saviers RD, Oxnard, CA 93033
- Phone
- (805) 487-5588
- Enumerated
- Feb 4, 2014
- Record last updated
- Dec 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (805) 487-5589
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →
Also registered at 2921 Saviers RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Erin Bergeron, M.D.Family Medicine Physician1144274531
- Danilo Bernal, NPFamily Nurse Practitioner1134548605
- Christine Camara, P.A.Physician Assistant1154333052
- Lisa Guravitz, RN, MSN, CPNPPediatric Nurse Practitioner1922082478
- Steve Jones, MDFamily Medicine Physician1407847734
- Emely Leal-Fernandez, NP, RNPrimary Care Nurse Practitioner1730404450
Verify Chelsea L. Tiedemann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 23773Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average nurse practitioner in 2024
208 Medicare Part D claims for 77 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Sertraline Hcl57 claims
- Fluoxetine Hcl38 claims
- Escitalopram Oxalate24 claims
- Duloxetine Hcl21 claims
- Venlafaxine Hcl Er15 claims
- Mirtazapine13 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.
Chelsea L. Tiedemann among 8,223 nurse practitioner records in California
Chelsea L. Tiedemann, FNP 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 2014, is newer than 42% of them.
- NPI issued2014 · 42% of these records are older, 55% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · 42% of these records are
- Record last updated2021 · 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 Oxnard → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Claudia Galdjie, FNPOxnard, CA 930351699049445
- Rachel Araujo, NPOxnard, CA 930301508632316
- Michele Bean, NPOxnard, CA 930361699167940
- Tina Beckham, F.N.P.Oxnard, CA 930301801837836
- Kaliyan Bryant, NPOxnard, CA 930301306421656
- Kristine CorpuzOxnard, CA 930361891469672
- Brandon Dittmar, NPOxnard, CA 930361831704113
- Jessica FlanaganOxnard, CA 930361083266076
Common questions
What is Chelsea L. Tiedemann, FNP's NPI number?
Chelsea L. Tiedemann, FNP's National Provider Identifier (NPI) is 1912320433, issued on Feb 4, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Chelsea L. Tiedemann, FNP located?
The NPPES record lists a practice address at 2921 Saviers RD, Oxnard, CA, 93033. Phone: (805) 487-5588. Providers update this record themselves, so call before visiting.
How can I verify Chelsea L. Tiedemann, FNP's license?
NPPES lists California license number 23773, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Chelsea L. Tiedemann, FNP prescribe under Medicare Part D?
In 2024, Chelsea L. Tiedemann, FNP had 208 Medicare Part D claims for 77 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.