Elizabeth Thuc Arnold, MD
Internal Medicine Physician · Sylmar, CA
Elizabeth Thuc Arnold, MD is an internal medicine physician with a practice address in Sylmar, California, and NPI 1538352554, issued on Aug 22, 2007. Check the license (California A99241, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Elizabeth Thuc Arnold
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A99241 CA
Self-reported in NPPES; status is on the state search - Practice location
- 14445 Olive View Dr, Sylmar, CA 91342
- Phone
- (818) 364-3205
- Enumerated
- Aug 22, 2007
- Record last updated
- Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20081217000388); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 2005
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 14445 Olive View Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Gezman Abdullahi, M.D.Internal Medicine Physician1225394380
- Moyosore Abere, NPNurse Practitioner1225667314
- Ammini Abraham, MDAnesthesiology Physician1467531541
- Margarita Acosta, RN, AGACNPAcute Care Nurse Practitioner1609202415
- Fredric Adler, MDInternal Medicine Physician1356376735
Verify Elizabeth Thuc Arnold in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A99241Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average internal medicine physician in 2024
426 Medicare Part D claims for 143 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 20 claims were for opioids.
Most prescribed
- Atorvastatin Calcium28 claims
- Amlodipine Besylate26 claims
- Eliquis20 claims
- Furosemide18 claims
- Cefpodoxime Proxetil17 claims
- Clopidogrel17 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Elizabeth Thuc Arnold among 17,696 internal medicine physician records in California
Elizabeth Thuc Arnold, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2005 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
102 internal medicine physician records list a practice address in Sylmar
They are 102 of the 1,454 NPPES records with a practice address in Sylmar, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Sylmar → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Fredric Adler, MDSylmar, CA 913421356376735
- Janet Au, MDSylmar, CA 913421932126570
- Peter Balingit, MDSylmar, CA 913421114952264
- Andrea Cooperman, MDSylmar, CA 913421326134560
- Basem Fanous, MDSylmar, CA 913421619072600
- Emil Heinze, MDSylmar, CA 913421720175052
- Miles Jakl, M.D.Sylmar, CA 913421992738306
- Luis Lovato, M.D.Sylmar, CA 913421407945678
Common questions
What is Elizabeth Thuc Arnold, MD's NPI number?
Elizabeth Thuc Arnold, MD's National Provider Identifier (NPI) is 1538352554, issued on Aug 22, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Elizabeth Thuc Arnold, MD located?
The NPPES record lists a practice address at 14445 Olive View Dr, Sylmar, CA, 91342. Phone: (818) 364-3205. Providers update this record themselves, so call before visiting.
How can I verify Elizabeth Thuc Arnold, MD's license?
NPPES lists California license number A99241, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Elizabeth Thuc Arnold, MD prescribe under Medicare Part D?
In 2024, Elizabeth Thuc Arnold, MD had 426 Medicare Part D claims for 143 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.