Yvonne Yee-Wan Kwan, MD
Internal Medicine Physician · Costa Mesa, CA
Yvonne Yee-Wan Kwan, MD is an internal medicine physician with a practice address in Costa Mesa, California, and NPI 1659378966, issued on Jun 30, 2005. Check the license (California G79797, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Yvonne Yee-Wan Kwan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G79797 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1665 Scenic Ave, Costa Mesa, CA 92626
- Phone
- (714) 436-4700
- Enumerated
- Jun 30, 2005
- Record last updated
- Jun 30, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (714) 436-4801
- Medicare enrollment
- Enrolled (PECOS I20081118000217); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 1993
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1665 Scenic Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Stephanie Kusser, N.P.Gerontology Nurse Practitioner1265671473
- Suzanne Larkin, FNP-CFamily Nurse Practitioner1053358044
- Edward Lee, MDInternal Medicine Physician1508863499
Verify Yvonne Yee-Wan Kwan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G79797Check 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 internal medicine physician in 2024
5,366 Medicare Part D claims for 481 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 60 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium462 claims
- Losartan Potassium461 claims
- Amlodipine Besylate370 claims
- Atorvastatin Calcium265 claims
- Pravastatin Sodium240 claims
- Alendronate Sodium224 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.
One hospital affiliation
- Straub Clinic And HospitalHonolulu, HI · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Yvonne Yee-Wan Kwan among 17,696 internal medicine physician records in California
Yvonne Yee-Wan Kwan, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1993 · median 2004 among the 11,065 with a school on file
- Record last updated2011 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in California
There are 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Costa Mesa → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Maryam Attar-Seyedi, M.DCosta Mesa, CA 926261518972330
- Philip Cheu, MDCosta Mesa, CA 926261568467215
- Ragavi Elangovan, D.OCosta Mesa, CA 926261336587658
- Shelley Han, M.D.Costa Mesa, CA 926261114345683
- Dariush Lavi, M.D.Costa Mesa, CA 926261750449062
- Huong Le, MDCosta Mesa, CA 926261699727537
- Hoan Le, MDCosta Mesa, CA 926261982656740
- Edward Lee, MDCosta Mesa, CA 926261508863499
Common questions
What is Yvonne Yee-Wan Kwan, MD's NPI number?
Yvonne Yee-Wan Kwan, MD's National Provider Identifier (NPI) is 1659378966, issued on Jun 30, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Yvonne Yee-Wan Kwan, MD located?
The NPPES record lists a practice address at 1665 Scenic Ave, Costa Mesa, CA, 92626. Phone: (714) 436-4700. Providers update this record themselves, so call before visiting.
How can I verify Yvonne Yee-Wan Kwan, MD's license?
NPPES lists California license number G79797, 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 Yvonne Yee-Wan Kwan, MD prescribe under Medicare Part D?
In 2024, Yvonne Yee-Wan Kwan, MD had 5,366 Medicare Part D claims for 481 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.