Yvette Herzfeld Theodore, NP
Gerontology Nurse Practitioner · Duarte, CA
Yvette Herzfeld Theodore, NP is a gerontology nurse practitioner with a practice address in Duarte, California, and NPI 1194293142, issued on Nov 7, 2018. Check the license (California 95010267, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Yvette Herzfeld Theodore
- Credential
- NP
- Primary taxonomy
- Gerontology Nurse Practitioner 363LG0600X
- License numbers
- 95010267 CA
NP95010267 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1500 Duarte RD, Duarte, CA 91010
- Phone
- (626) 256-4673
- Enumerated
- Nov 7, 2018
- Record last updated
- Nov 16, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190202000101); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gerontology nurse practitioner records → All 569 in California → Look up another NPI →
Also registered at 1500 Duarte RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Chelsea Abad, CRNP, AGPCNP - BCGerontology Nurse Practitioner1952848137
- Wajidah Abdul-KhabirHospitalist Physician1215323522
- Farah Abdulla, MDDermatology Physician1093934390
- Megan Abel, PA-CPhysician Assistant1104100619
- Michelle Afkhami, M.D.Hematology (Pathology) Physician1326230228
- Vaibhav Agrawal, M.D.Hematology & Oncology Physician1538402565
Verify Yvette Herzfeld Theodore in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95010267Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average gerontology nurse practitioner in 2024
82 Medicare Part D claims for 49 beneficiaries, against an average of 1,369 among the 6,165 providers of this specialty who prescribed in Part D.
Most prescribed
- Gabapentin14 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): 99.1 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).
Industry payments in 2024: $288.20
10 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 3,903 providers of this specialty with any payment received $742.05 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 one group practice
- City OF Hope Medical FoundationDuarte, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Yvette Herzfeld Theodore among 569 gerontology nurse practitioner records in California
Yvette Herzfeld Theodore, NP is one of 569 gerontology nurse practitioner records with a practice address in California. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 51% of them.
- NPI issued2018 · 51% of these records are older, 43% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileYes · 42% of these records are
- Graduated2018 · median 2018 among the 239 with a school on file
- Record last updated2020 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
41 gerontology nurse practitioner records list a practice address in Duarte
They are 41 of the 1,287 NPPES records with a practice address in Duarte, and 569 gerontology nurse practitioner records in California.
All 569 in California → Every provider in Duarte → Gerontology Nurse Practitioner nationwide →
The 8 gerontology nurse practitioner records with the nearest ZIP codes
- Chelsea Abad, CRNP, AGPCNP - BCDuarte, CA 910101952848137
- Alice Ahn, NPDuarte, CA 910101790151405
- Jennifer Baecker, MSN, ANPDuarte, CA 910101548689649
- Brian Bowman, N.P.Duarte, CA 910101770971418
- Cecilio Cay, NPDuarte, CA 910101558675330
- Leana Chien, CNS-BC, NP-BCDuarte, CA 910101215252010
- Katrina Duncan, MSN, BSNDuarte, CA 910101881010429
- Vlad Gheorghiu, NPDuarte, CA 910101427426618
Common questions
What is Yvette Herzfeld Theodore, NP's NPI number?
Yvette Herzfeld Theodore, NP's National Provider Identifier (NPI) is 1194293142, issued on Nov 7, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Yvette Herzfeld Theodore, NP located?
The NPPES record lists a practice address at 1500 Duarte RD, Duarte, CA, 91010. Phone: (626) 256-4673. Providers update this record themselves, so call before visiting.
How can I verify Yvette Herzfeld Theodore, NP's license?
NPPES lists California license number 95010267, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Yvette Herzfeld Theodore, NP prescribe under Medicare Part D?
In 2024, Yvette Herzfeld Theodore, NP had 82 Medicare Part D claims for 49 beneficiaries; the average among gerontology nurse practitioner prescribers was 1,369. Part D covers Medicare prescriptions only.
What is Yvette Herzfeld Theodore, NP's MIPS final score?
The 2023 MIPS final score is 99.1 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.