Daniel Gunjoo Lee
Critical Care Medicine (Internal Medicine) Physician · Fairfield, CA
Daniel Gunjoo Lee is a critical care medicine (internal medicine) physician with a practice address in Fairfield, California, and NPI 1366076580, issued on Feb 26, 2020. Check the license (California 20A22164, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Daniel Gunjoo Lee
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- 20A22164 CA
Self-reported in NPPES; status is on the state search - Practice location
- 101 Bodin Cir, Fairfield, CA 94535
- Phone
- (707) 423-3000
- Enumerated
- Feb 26, 2020
- Record last updated
- Jul 30, 2026
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 723 in California → Look up another NPI →
Also registered at 101 Bodin Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Angela Aguayo, MSWSocial Worker1225504897
- Artemio Alanis, PHARMDOncology Pharmacist1396513982
- Traci Allen, RNCase Management Registered Nurse1669292132
- Rachel Anderson, MDAnesthesiology Physician1942730072
- Eugene Asabor, DDSDentist1568300242
- Savannah Bahls, DOMilitary Health Care Provider1619764008
Verify Daniel Gunjoo Lee in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A22164Check 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 critical care medicine (internal medicine) physician in 2024
47 Medicare Part D claims for 19 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. Brand-name drugs were 53% of 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.
Daniel Gunjoo Lee among 723 critical care medicine (internal medicine) physician records in California
Daniel Gunjoo Lee is one of 723 critical care medicine (internal medicine) physician records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 97% of them.
- NPI issued2020 · 97% of these records are older, 2% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileNo · 77% of these records are
- Record last updated2026 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in California
There are 723 critical care medicine (internal medicine) physician records in California.
All 723 in California → Every provider in Fairfield → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- David Anderson, D.O.Travis Afb, CA 945351265791768
- Shea Boles, MDTravis Afb, CA 945351093274193
- Talayeh Rezayat, D.O.Fairfield, CA 945351841511409
- Samuel RouleauFairfield, CA 945351851982326
- Carmencita Agcaoili, M.D.Fremont, CA 945381285652396
- Rohit Arora, M.D.Fremont, CA 945381508086885
- Omeed Azizirad, M.D.Fremont, CA 945381386707651
- Wendy Hsu, MDFremont, CA 945381750563011
Common questions
What is Daniel Gunjoo Lee's NPI number?
Daniel Gunjoo Lee's National Provider Identifier (NPI) is 1366076580, issued on Feb 26, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Daniel Gunjoo Lee located?
The NPPES record lists a practice address at 101 Bodin Cir, Fairfield, CA, 94535. Phone: (707) 423-3000. Providers update this record themselves, so call before visiting.
How can I verify Daniel Gunjoo Lee's license?
NPPES lists California license number 20A22164, 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 Daniel Gunjoo Lee prescribe under Medicare Part D?
In 2024, Daniel Gunjoo Lee had 47 Medicare Part D claims for 19 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. 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.