Theresa Sivers-Teixeira, PA-C
Medical Physician Assistant · Pasadena, CA
Theresa Sivers-Teixeira, PA-C is a medical physician assistant with a practice address in Pasadena, California, and NPI 1235551995, issued on Jan 15, 2014. Check the license (California PA23192, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Theresa Sivers-Teixeira
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License numbers
- PA23192 CA
23192 CA
Self-reported in NPPES; status is on the state search - Practice location
- 625 South Fair Oaks, #400, Pasadena, CA 91105
- Phone
- (626) 568-1622
- Enumerated
- Jan 15, 2014
- Record last updated
- Nov 27, 2023
- Fax
- (626) 865-9560
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,376 in California → Look up another NPI →
Verify Theresa Sivers-Teixeira in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA23192Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average medical physician assistant in 2024
354 Medicare Part D claims for 68 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Atorvastatin Calcium36 claims
- Levothyroxine Sodium30 claims
- Losartan Potassium15 claims
- Amlodipine Besylate14 claims
- Lisinopril11 claims
- Memantine Hcl11 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.
Theresa Sivers-Teixeira among 3,376 medical physician assistant records in California
Theresa Sivers-Teixeira, PA-C is one of 3,376 medical physician assistant records with a practice address in California. 69% 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 58% of them.
- NPI issued2014 · 58% of these records are older, 38% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · 40% of these records are
- Record last updated2023 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Physician Assistant providers in California
There are 3,376 medical physician assistant records in California.
All 3,376 in California → Every provider in Pasadena → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Paul Coriolan, PACPasadena, CA 911051285686162
- Randy Debber, PA-CPasadena, CA 911051679627103
- Anne Marie Girard, P.A.Pasadena, CA 911051417103581
- Annie Huang, PAPasadena, CA 911051508036617
- Holly Incoll, PA-CPasadena, CA 911051194175281
- Jimmy Nguyen, PAPasadena, CA 911051366394835
- Hillary Runnels, PA-CPasadena, CA 911051265726574
- Stephanie Schwartz, PA-CPasadena, CA 911051043899511
Common questions
What is Theresa Sivers-Teixeira, PA-C's NPI number?
Theresa Sivers-Teixeira, PA-C's National Provider Identifier (NPI) is 1235551995, issued on Jan 15, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Theresa Sivers-Teixeira, PA-C located?
The NPPES record lists a practice address at 625 South Fair Oaks, #400, Pasadena, CA, 91105. Phone: (626) 568-1622. Providers update this record themselves, so call before visiting.
How can I verify Theresa Sivers-Teixeira, PA-C's license?
NPPES lists California license number PA23192, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Theresa Sivers-Teixeira, PA-C prescribe under Medicare Part D?
In 2024, Theresa Sivers-Teixeira, PA-C had 354 Medicare Part D claims for 68 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.