NPPES file of Aug 9, 2026

Andy W. Lee, D.O.

Emergency Medicine Physician · Fairfield, CA

Andy W. Lee, D.O. is an emergency medicine physician with a practice address in Fairfield, California, and NPI 1750572491, issued on Aug 7, 2007. Check the license (California 20A11481, as entered in NPPES) 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1750572491
Name
Andy W. Lee
Credential
D.O.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
20A11481 CA
34.009538 OH
Self-reported in NPPES; status is on the state search
Practice location
1200 B Gale Wilson Blvd, Fairfield, CA 94533
Phone
(707) 646-5000
Enumerated
Aug 7, 2007
Record last updated
Aug 31, 2011 (not updated in 15 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20110801000726); 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.
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Also registered at 1200 B Gale Wilson Blvd

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

  1. Yusuf Ahmad, MDAnesthesiology Physician1104020262
  2. Tashira AlexanderRegistered Dietitian1902732480
  3. Nail Amro, M.D.Internal Medicine Physician1861413551
  4. Allan Au, M.D.Hospitalist Physician1427495563
  5. Erin Berntsen, ACNPAcute Care Nurse Practitioner1205640489
  6. Neeta BhasinCritical Care Pharmacist1457984882

Verify Andy W. Lee in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A11481
    Check 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.

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18% more Medicare Part D claims than the average emergency medicine physician in 2024

267 Medicare Part D claims for 174 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 44 claims were for opioids.

  1. Andy Lee267
  2. Specialty average226

Most prescribed

  1. Doxycycline Monohydrate27 claims
  2. Tramadol Hcl21 claims
  3. Albuterol Sulfate Hfa20 claims
  4. Cefdinir19 claims
  5. Cephalexin19 claims
  6. Ondansetron Odt16 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.

Bills Medicare through one group practice

  1. Northbay Physicians Surgery Center, LLCFairfield, CA

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

Andy W. Lee among 7,751 emergency medicine physician records in California

Andy W. Lee, D.O. 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 2007, is newer than 40% of them.

  • NPI issued2007 · 40% of these records are older, 50% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2007 · median 2011 among the 4,560 with a school on file
  • Record last updated2011 · 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).

Emergency Medicine Physician providers in California

There are 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. William Ankney, M.D.Fairfield, CA 945331760419824
  2. David Dennis, M.D.Fairfield, CA 945331730116799
  3. Caesar Djavaherian, M.D.Fairfield, CA 945331790760551
  4. David Ehrenfeld, M.D.Fairfield, CA 945331417051830
  5. Steven Garcia, MDFairfield, CA 945331376868323
  6. Julie Hersk, M.D.Fairfield, CA 945331023114030
  7. Toshi Hiraoka, M.D.Fairfield, CA 945331467489427
  8. Gary Hollinger, PA-CFairfield, CA 945331598868705

Common questions

What is Andy W. Lee, D.O.'s NPI number?

Andy W. Lee, D.O.'s National Provider Identifier (NPI) is 1750572491, issued on Aug 7, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Andy W. Lee, D.O. located?

The NPPES record lists a practice address at 1200 B Gale Wilson Blvd, Fairfield, CA, 94533. Phone: (707) 646-5000. Providers update this record themselves, so call before visiting.

How can I verify Andy W. Lee, D.O.'s license?

NPPES lists California license number 20A11481, 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 Andy W. Lee, D.O. prescribe under Medicare Part D?

In 2024, Andy W. Lee, D.O. had 267 Medicare Part D claims for 174 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.