Andrea A. Ngo, MD
Hospitalist Physician · Fairfield, CA
Andrea A. Ngo, MD is a hospitalist physician with a practice address in Fairfield, California, and NPI 1699863464, issued on Oct 10, 2006. Check the license (California A64486, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Andrea A. Ngo
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A64486 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1200 B Gale Wilson Blvd, Fairfield, CA 94533
- Phone
- (707) 429-3600
- Enumerated
- Oct 10, 2006
- Record last updated
- Nov 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 00A644860 CA
- Medicare enrollment
- Enrolled (PECOS I20040323001057); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 1996
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
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.
- Yusuf Ahmad, MDAnesthesiology Physician1104020262
- Tashira AlexanderRegistered Dietitian1902732480
- Nail Amro, M.D.Internal Medicine Physician1861413551
- Allan Au, M.D.Hospitalist Physician1427495563
- Erin Berntsen, ACNPAcute Care Nurse Practitioner1205640489
- Neeta BhasinCritical Care Pharmacist1457984882
Verify Andrea A. Ngo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A64486Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% fewer Medicare Part D claims than the average hospitalist physician in 2024
190 Medicare Part D claims for 82 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate12 claims
- Metoprolol Succinate12 claims
- Atorvastatin Calcium11 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 MIPS final score for 2023 (Medicare payment program): 87.2 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).
Bills Medicare through one group practice
- Galen Inpatient Physicians PCGreenbrae, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Andrea A. Ngo among 3,099 hospitalist physician records in California
Andrea A. Ngo, MD is one of 3,099 hospitalist physician records with a practice address in California. 90% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 73% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated1996 · median 2010 among the 2,505 with a school on file
- Record last updated2007 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Fairfield → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Allan Au, M.D.Fairfield, CA 945331427495563
- Benjamin Liu, D.O.Fairfield, CA 945331932544061
- Satinderjit Nijjar, MDFairfield, CA 945331689171183
- Pranay Bahuguna, M.D.Fairfield, CA 945341174598932
- James Chan, M.D.Antioch, CA 945311033437231
- Anirudh Dwarakanath, MDFairfield, CA 945351154956415
- Jingping Hao, M.D.Antioch, CA 945311710236898
- Ni Mo, D.O.Antioch, CA 945311285175539
Common questions
What is Andrea A. Ngo, MD's NPI number?
Andrea A. Ngo, MD's National Provider Identifier (NPI) is 1699863464, issued on Oct 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Andrea A. Ngo, MD located?
The NPPES record lists a practice address at 1200 B Gale Wilson Blvd, Fairfield, CA, 94533. Phone: (707) 429-3600. Providers update this record themselves, so call before visiting.
How can I verify Andrea A. Ngo, MD's license?
NPPES lists California license number A64486, 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 Andrea A. Ngo, MD prescribe under Medicare Part D?
In 2024, Andrea A. Ngo, MD had 190 Medicare Part D claims for 82 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is Andrea A. Ngo, MD's MIPS final score?
The 2023 MIPS final score is 87.2 of 100. 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.