Osmund T. Chan, M.D.
Otolaryngology Physician · Los Angeles, CA
Osmund T. Chan, M.D. is an otolaryngology physician with a practice address in Los Angeles, California, and NPI 1346385663, issued on Feb 21, 2007. Check the license (California G43950, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Osmund T. Chan
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- G43950 CA
Self-reported in NPPES; status is on the state search - Practice location
- 711 W College St, Los Angeles, CA 90012
- Phone
- (213) 626-8338
- Enumerated
- Feb 21, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (213) 626-8338
- Medicare enrollment
- Enrolled (PECOS I20121002000364); accepts Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 1976
- Entity
- Type 1 · individual
Also registered at 711 W College St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Osmund T. Chan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G43950Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.5 times the Medicare Part D claims of the average otolaryngology physician in 2024
1,911 Medicare Part D claims for 559 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D.
Most prescribed
- Ofloxacin1,122 claims
- Neomycin-Polymyxin-Hydrocort176 claims
- Azithromycin147 claims
- Neomycin-Polymyxin-Dexameth132 claims
- Fluticasone Propionate129 claims
- Amoxicillin41 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: $50.15
2 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 6,429 providers of this specialty with any payment received $1,922.50 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.
Otolaryngology Physician providers in California
There are 1,212 otolaryngology physician records in California.
Other otolaryngology physician records in California
- Arman Abdalkhani, MDPalo Alto, CA1356536130
- Abdul-Rahman Abdel-ReheemLos Angeles, CA1831770437
- Ahmed AbdelmeguidPalo Alto, CA1447744180
- Rami Abdou, M.D.Santa Rosa, CA1700143013
- Eric AbelloOrange, CA1922566215
- Mohamed Aboueisha, MDLos Angeles, CA1316678881
- Marianne Abouyared, M.D.Sacramento, CA1235472200
- Norton Abramson, M.D.San Clemente, CA1356488696
- Basil Adad, MDWalnut Creek, CA1487732574
- Brett Adams, MDStockton, CA1407934227
Common questions
What is Osmund T. Chan, M.D.'s NPI number?
Osmund T. Chan, M.D.'s National Provider Identifier (NPI) is 1346385663, issued on Feb 21, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Osmund T. Chan, M.D. located?
The NPPES record lists a practice address at 711 W College St, Los Angeles, CA, 90012. Phone: (213) 626-8338. Providers update this record themselves, so call before visiting.
How can I verify Osmund T. Chan, M.D.'s license?
NPPES lists California license number G43950, 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 Osmund T. Chan, M.D. prescribe under Medicare Part D?
In 2024, Osmund T. Chan, M.D. had 1,911 Medicare Part D claims for 559 beneficiaries; the average among otolaryngology physician prescribers was 541. 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.