NPPES file of Aug 9, 2026

Gi Xiang Lee

Emergency Medicine Physician · Oakland, CA

Gi Xiang Lee is an emergency medicine physician with a practice address in Oakland, California, and NPI 1033613393, issued on Mar 21, 2018. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1033613393
Name
Gi Xiang Lee
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
036159656 IL
Self-reported in NPPES; status is on the state search
Practice location
1411 E 31St St # 22123, Oakland, CA 94602
Phone
(510) 437-4800
Enumerated
Mar 21, 2018
Record last updated
Jul 11, 2022
Medicare enrollment
Enrolled (PECOS I20220830000325); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 1411 E 31St St # 22123

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jeremiah CrossStudent in an Organized Health Care Education/Training Program1841759636
  2. Raghav Goyal, MDEmergency Medicine Physician1245817022
  3. Kristen Hancock, MDStudent in an Organized Health Care Education/Training Program1780261040
  4. Jamal Jefferson, MDEmergency Medicine Physician1790244523
  5. Amy Liang, MDEmergency Medicine Physician1588161210
  6. Azad Molla Hosseini, MDEmergency Medicine Physician1396373486

Verify Gi Xiang Lee in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

32% fewer Medicare Part D claims than the average emergency medicine physician in 2024

154 Medicare Part D claims for 105 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 18 claims were for opioids.

  1. Gi Xiang Lee154
  2. Specialty average226

Most prescribed

  1. Hydrocodone-Acetaminophen14 claims
  2. Amoxicillin-Clavulanate Potass11 claims
  3. Cephalexin11 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 practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score100.0
  2. Costout of 100 · 30%94.7
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Cepamerica Illinois LLPJoliet, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

247 emergency medicine physician records list a practice address in Oakland

They are 247 of the 18,558 NPPES records with a practice address in Oakland, and 7,751 emergency medicine physician records in California.

Other emergency medicine physician records in California

  1. Cooper Aakhus, MDStanford, CA1194351007
  2. Pyra Aarden, MDMartinez, CA1417058199
  3. Neal Aaron, D.O.Encinitas, CA1114283520
  4. Eric AaserudeWalnut Creek, CA1811491194
  5. Nader Abas, MDBarstow, CA1346288305
  6. Michael Abbo, MDNovato, CA1205819042
  7. Daniel Abbott, MDFullerton, CA1518907864
  8. Paul-Andre Abboud, M.D.Oakland, CA1710065503
  9. Mostafa Abdel-Hamid, MDStanford, CA1457918740
  10. Ashraf Abdel-KerimChino, CA1396961538

Common questions

What is Gi Xiang Lee's NPI number?

Gi Xiang Lee's National Provider Identifier (NPI) is 1033613393, issued on Mar 21, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Gi Xiang Lee located?

The NPPES record lists a practice address at 1411 E 31St St # 22123, Oakland, CA, 94602. Phone: (510) 437-4800. Providers update this record themselves, so call before visiting.

How can I verify Gi Xiang Lee's license?

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 Gi Xiang Lee prescribe under Medicare Part D?

In 2024, Gi Xiang Lee had 154 Medicare Part D claims for 105 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Gi Xiang Lee's MIPS final score?

The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.