Jeffrey Tseng, M.D.
Otolaryngology Physician · Thousand Oaks, CA
Jeffrey Tseng, M.D. is an otolaryngology physician with a practice address in Thousand Oaks, California, and NPI 1205990868, issued on Dec 20, 2006. Check the license (California A101924, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jeffrey Tseng
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License numbers
- A101924 CA
47283-020 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2220 Lynn RD, Thousand Oaks, CA 91360
- Phone
- (805) 496-8103
- Enumerated
- Dec 20, 2006
- Record last updated
- Nov 20, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (805) 496-9661
- Medicare enrollment
- Enrolled (PECOS I20090819000334); may accept Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 2003
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 1,212 in California → Look up another NPI →
Also registered at 2220 Lynn RD
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- Joy Edwards-Beckett, PHD, DNSC, FNP.C, CWFamily Nurse Practitioner1093838583
Verify Jeffrey Tseng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A101924Check 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% more Medicare Part D claims than the average otolaryngology physician in 2024
914 Medicare Part D claims for 406 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. Brand-name drugs were 1% of claims.
Most prescribed
- Ipratropium Bromide232 claims
- Azelastine Hcl105 claims
- Fluticasone Propionate86 claims
- Amoxicillin-Clavulanate Potass74 claims
- Azithromycin57 claims
- Omeprazole50 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 MIPS final score for 2023 (Medicare payment program): 0 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Jeffrey Tseng among 1,212 otolaryngology physician records in California
Jeffrey Tseng, M.D. is one of 1,212 otolaryngology physician records with a practice address in California. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 52% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2003 · median 2004 among the 818 with a school on file
- Record last updated2009 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in California
There are 1,212 otolaryngology physician records in California.
All 1,212 in California → Every provider in Thousand Oaks → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Oliver Gantz, M.D.Thousand Oaks, CA 913601952758260
- Natalie Kadin, MDThousand Oaks, CA 913601457594160
- Tom MaximThousand Oaks, CA 913601801356464
- John Hernandez, M.D.Westlake Village, CA 913611043363997
- Soochuen Kho, M.D.Thousand Oaks, CA 913611881626661
- Jaesung Lee, M.D.Thousand Oaks, CA 913611376550715
- Kelvin Loh, M.D.Thousand Oaks, CA 913611326174509
- Andrew Mikaelian, M.D.Westlake Village, CA 913611891740973
Common questions
What is Jeffrey Tseng, M.D.'s NPI number?
Jeffrey Tseng, M.D.'s National Provider Identifier (NPI) is 1205990868, issued on Dec 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey Tseng, M.D. located?
The NPPES record lists a practice address at 2220 Lynn RD, Thousand Oaks, CA, 91360. Phone: (805) 496-8103. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey Tseng, M.D.'s license?
NPPES lists California license number A101924, 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 Jeffrey Tseng, M.D. prescribe under Medicare Part D?
In 2024, Jeffrey Tseng, M.D. had 914 Medicare Part D claims for 406 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.
What is Jeffrey Tseng, M.D.'s MIPS final score?
The 2023 MIPS final score is 0 of 100. 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.