Robert Lee, M.D.
Gastroenterology Physician · Orange, CA
Robert Lee, M.D. is a gastroenterology physician with a practice address in Orange, California, and NPI 1669583530, issued on Aug 31, 2006. Check the license (California A86736, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert Lee
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- A86736 CA
4301076520 MI
Self-reported in NPPES; status is on the state search - Practice location
- 101 The City Dr S Bldg 22C, Orange, CA 92868
- Phone
- (888) 717-4463
- Enumerated
- Aug 31, 2006
- Entity
- Type 1 · individual
Also registered at 101 The City Dr S Bldg 22C
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Frances Dang, MDGastroenterology Physician1225892219
- Marcelo Hinojosa, MDSurgery Physician1861673998
- Amber Isenhart, MS, RDRegistered Dietitian1023401288
- Avni Jain, MD, FRCPCGastroenterology Physician1629837455
- William Karnes, MDGastroenterology Physician1881652998
- Joshua KwonGastroenterology Physician1053870121
Verify Robert Lee in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A86736Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
48% fewer Medicare Part D claims than the average gastroenterology physician in 2024
425 Medicare Part D claims for 39 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.
Most prescribed
- Diphenhydramine Hcl56 claims
- Pantoprazole Sodium35 claims
- Sodium Chloride35 claims
- Ondansetron Hcl34 claims
- Famotidine27 claims
- Motegrity22 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.
The Medicare quality score for 2023: 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $155.02
1 payment, mostly food and beverage; the largest payer was Cook Medical LLC. The 13,350 providers of this specialty with any payment received $5,015.95 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
- UC RegentsOrange, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gastroenterology Physician providers in California
There are 2,140 gastroenterology physician records in California.
Other gastroenterology physician records in California
- David Aarons, MDLodi, CA1619081379
- Constante Abaya, MDOxnard, CA1003918459
- Sadeea Abbasi, M.D., PH.D.Los Angeles, CA1366713513
- Basim Abdelkarim, MDUpland, CA1932217544
- Homan Abdollahzadeh, MDPalm Springs, CA1184634826
- John Abdulian, M.D.Fresno, CA1437114113
- Hussein Abidali, DORancho Cucamonga, CA1205274768
- Alaa Abousaif, MDOrange, CA1235124108
- Donald Abrahm, M.D.Newport Beach, CA1215022405
- Maria Abreu, M.D.West Hollywood, CA1598793374
Common questions
What is Robert Lee, M.D.'s NPI number?
Robert Lee, M.D.'s National Provider Identifier (NPI) is 1669583530, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert Lee, M.D. located?
The NPPES record lists a practice address at 101 The City Dr S Bldg 22C, Orange, CA, 92868. Phone: (888) 717-4463. Providers update this record themselves, so call before visiting.
How can I verify Robert Lee, M.D.'s license?
NPPES lists California license number A86736, 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 Robert Lee, M.D. prescribe under Medicare Part D?
In 2024, Robert Lee, M.D. had 425 Medicare Part D claims for 39 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Robert Lee, M.D.'s Medicare quality score?
The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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) 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 27, 2026.