Mark Y. Lee, MD
Emergency Medicine Physician · Orange, CA
Mark Y. Lee, MD is an emergency medicine physician with a practice address in Orange, California, and NPI 1588696819, issued on Jul 7, 2006. Check the license (California A82721, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Y. Lee
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A82721 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2601 E Chapman Ave, Orange, CA 92869
- Phone
- (714) 633-0011
- Enumerated
- Jul 7, 2006
- Record last updated
- Dec 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00A827210 CA
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 2601 E Chapman Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dean Aubin, M.D.Emergency Medicine Physician1932391869
- James Chang, M.D.Anesthesiology Physician1700867298
- Jeffry Chen, M.D.Anesthesiology Physician1578791620
- Vadim Chudnovsky, M.D.Diagnostic Radiology Physician1922049394
- Brian Coombe, DOEmergency Medicine Physician1023257755
- Usha Desai, RNFARegistered Nurse First Assistant1144357914
Verify Mark Y. Lee in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A82721Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% more Medicare Part D claims than the average emergency medicine physician in 2024
422 Medicare Part D claims for 286 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 72 claims were for opioids.
Most prescribed
- Cephalexin41 claims
- Hydrocodone-Acetaminophen40 claims
- Prednisone35 claims
- Tramadol Hcl24 claims
- Ondansetron Odt23 claims
- Meloxicam20 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.
Mark Y. Lee among 7,751 emergency medicine physician records in California
Mark Y. Lee, MD is one of 7,751 emergency medicine physician records with a practice address in California. 81% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 60% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2021 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
179 emergency medicine physician records list a practice address in Orange
They are 179 of the 13,245 NPPES records with a practice address in Orange, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Orange → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Dean Aubin, M.D.Orange, CA 928691932391869
- Brian Coombe, DOOrange, CA 928691023257755
- Anita Wang, MDOrange, CA 928691336189794
- Daniel Artiga, MDOrange, CA 928681801537964
- Adam Bouldin, MDOrange, CA 928681518609486
- Christina Cantwell, MDOrange, CA 928681528717840
- Austin Dejong, DOOrange, CA 928681992407886
- Thao Do, D.O.Placentia, CA 928701073861712
Common questions
What is Mark Y. Lee, MD's NPI number?
Mark Y. Lee, MD's National Provider Identifier (NPI) is 1588696819, issued on Jul 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Y. Lee, MD located?
The NPPES record lists a practice address at 2601 E Chapman Ave, Orange, CA, 92869. Phone: (714) 633-0011. Providers update this record themselves, so call before visiting.
How can I verify Mark Y. Lee, MD's license?
NPPES lists California license number A82721, 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 Mark Y. Lee, MD prescribe under Medicare Part D?
In 2024, Mark Y. Lee, MD had 422 Medicare Part D claims for 286 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.