Steve K. Tseng, D.O.
Critical Care Medicine (Internal Medicine) Physician · Monterey Park, CA
Steve K. Tseng, D.O. is a critical care medicine (internal medicine) physician with a practice address in Monterey Park, California, and NPI 1316357841, issued on May 6, 2014. Check the license (California 20A17599, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Steve K. Tseng
- Credential
- D.O.
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License numbers
- 20A17599 CA
R2378 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 500 N Garfield Ave Ste 204, Monterey Park, CA 91754
- Phone
- (626) 280-4393
- Enumerated
- May 6, 2014
- Record last updated
- Oct 29, 2024
- Fax
- (626) 280-5379
- Medicare enrollment
- Enrolled (PECOS I20200617000497); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 723 in California → Look up another NPI →
Also registered at 500 N Garfield Ave Ste 204
A shared address usually means a shared clinic or building; it does not show who employs whom.
- William Chang, MDCritical Care Medicine (Internal Medicine) Physician1003236688
- Siyuan Jing, NPAcute Care Nurse Practitioner1114575115
- Than Kyaw, M.DCritical Care Medicine (Internal Medicine) Physician1659642767
- Jeng-Jong Liao, MDCritical Care Medicine (Internal Medicine) Physician1851442057
- Erick Lu, D.O.Pulmonary Disease Physician1417278359
- Wanting NgFamily Nurse Practitioner1952843609
Verify Steve K. Tseng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A17599Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024
147 Medicare Part D claims for 38 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. Brand-name drugs were 46% of claims.
Most prescribed
- Montelukast Sodium27 claims
- Trelegy Ellipta26 claims
- Albuterol Sulfate Hfa18 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.
Industry payments in 2024: $93.27
3 payments; by number, the most common kind was food and beverage; the largest payer was La Jolla Pharmaceutical Company. The 2,708 providers of this specialty with any payment received $2,958.68 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 FoundationIrvine, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Steve K. Tseng among 723 critical care medicine (internal medicine) physician records in California
Steve K. Tseng, D.O. is one of 723 critical care medicine (internal medicine) physician records with a practice address in California. 87% 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 78% of them.
- NPI issued2014 · 78% of these records are older, 19% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2019 · median 2005 among the 559 with a school on file
- Record last updated2024 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in California
There are 723 critical care medicine (internal medicine) physician records in California.
All 723 in California → Every provider in Monterey Park → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- William Chang, MDMonterey Park, CA 917541003236688
- Stephen Chen, MDMonterey Park, CA 917541205821477
- Jeffrey Chen, D.O.Monterey Park, CA 917541801120191
- Than Kyaw, M.DMonterey Park, CA 917541659642767
- Jeng-Jong Liao, MDMonterey Park, CA 917541851442057
- Owais Zaidi, MDPomona, CA 917671588825095
- Joseph Hourany, MDPomona, CA 917691720163728
- Bruce Corigliano, MDBaldwin Park, CA 917061285705251
Common questions
What is Steve K. Tseng, D.O.'s NPI number?
Steve K. Tseng, D.O.'s National Provider Identifier (NPI) is 1316357841, issued on May 6, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Steve K. Tseng, D.O. located?
The NPPES record lists a practice address at 500 N Garfield Ave Ste 204, Monterey Park, CA, 91754. Phone: (626) 280-4393. Providers update this record themselves, so call before visiting.
How can I verify Steve K. Tseng, D.O.'s license?
NPPES lists California license number 20A17599, 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 Steve K. Tseng, D.O. prescribe under Medicare Part D?
In 2024, Steve K. Tseng, D.O. had 147 Medicare Part D claims for 38 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. 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.