Il Sung Won, M.D.
Anesthesiology Physician · Pacific Palisades, CA
Il Sung Won, M.D. is an anesthesiology physician with a practice address in Pacific Palisades, California, and NPI 1215370853, issued on Apr 13, 2013. Check the license (California A29669, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Il Sung Won
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- A29669 CA
Self-reported in NPPES; status is on the state search - Practice location
- 17609 Camino DE Yatasto, Pacific Palisades, CA 90272
- Phone
- (213) 500-9554
- Enumerated
- Apr 13, 2013
- Record last updated
- Apr 13, 2013 (not updated in 13 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 17609 Camino DE Yatasto
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ockja Won, M.D.Anesthesiology Physician1497198030
Verify Il Sung Won in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A29669Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average anesthesiology physician in 2024
27 Medicare Part D claims, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D.
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.
Il Sung Won among 7,571 anesthesiology physician records in California
Il Sung Won, M.D. is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 73% of them.
- NPI issued2013 · 73% of these records are older, 24% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2013 · 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 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 anesthesiology physician records list a practice address in Pacific Palisades
They are 6 of the 251 NPPES records with a practice address in Pacific Palisades, and 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Pacific Palisades → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Afsaneh Andrews, M.D.Pacific Palisades, CA 902721164478160
- Alan Chagy, M.D.Pacific Palisades, CA 902721689952160
- Victoria Danhakl, MDPacific Palisades, CA 902721780901322
- Naomi Saucier, M.D.Pacific Palisades, CA 902721962742593
- Ockja Won, M.D.Pacific Palisades, CA 902721497198030
- Claire Stiles, M.D.Palos Verdes Estates, CA 902741952844086
- Gayne Brenneman, M.D.Rancho Palos Verdes, CA 902751093892747
- Macantoine Louis-Jacques, MDRedondo Beach, CA 902771790723773
Common questions
What is Il Sung Won, M.D.'s NPI number?
Il Sung Won, M.D.'s National Provider Identifier (NPI) is 1215370853, issued on Apr 13, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Il Sung Won, M.D. located?
The NPPES record lists a practice address at 17609 Camino DE Yatasto, Pacific Palisades, CA, 90272. Phone: (213) 500-9554. Providers update this record themselves, so call before visiting.
How can I verify Il Sung Won, M.D.'s license?
NPPES lists California license number A29669, 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 Il Sung Won, M.D. prescribe under Medicare Part D?
In 2024, Il Sung Won, M.D. had 27 Medicare Part D claims; the average among anesthesiology physician prescribers was 402. 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.