Mark Lewis Choa, M.D.
Psychiatry Physician · Palo Alto, CA
Mark Lewis Choa, M.D. is a psychiatry physician with a practice address in Palo Alto, California, and NPI 1992966618, issued on Jun 25, 2008. Check the license (California A110178, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Lewis Choa
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A110178 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Dr, Palo Alto, CA 94304
- Phone
- (650) 723-4000
- Enumerated
- Jun 25, 2008
- Record last updated
- Apr 29, 2024
- Medicare enrollment
- Enrolled (PECOS I20130124000428); accepts Medicare assignment
- Medical or professional school
- University Of Virginia School Of Medicine, 2008
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 300 Pasteur Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elias Aboujaoude, MDPsychiatry Physician1649209768
- Connor Adams, PSYDClinical Psychologist1467081216
- Terence Ahern, MDEmergency Medicine Physician1104195916
- Teddy Akiki, MDPsychiatry Physician1942867718
- Amy Alexander, M.D.Psychiatry Physician1740435486
- Monica Allen, PSYDClinical Psychologist1952787749
Verify Mark Lewis Choa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A110178Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average psychiatry physician in 2024
148 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Clozapine Odt22 claims
- Lurasidone Hcl22 claims
- Paroxetine Hcl18 claims
- Clozapine15 claims
- Clonazepam14 claims
- Bupropion Xl12 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): 76.5 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
One hospital affiliation
- Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Mark Lewis Choa among 8,673 psychiatry physician records in California
Mark Lewis Choa, M.D. is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 52% of them.
- NPI issued2008 · 52% of these records are older, 43% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated2008 · median 2005 among the 3,295 with a school on file
- Record last updated2024 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
215 psychiatry physician records list a practice address in Palo Alto
They are 215 of the 7,617 NPPES records with a practice address in Palo Alto, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Palo Alto → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Elias Aboujaoude, MDPalo Alto, CA 943041649209768
- Steven Bagley, MDPalo Alto, CA 943041730125048
- Justin Birnbaum, M.D.Palo Alto, CA 943041013007848
- Kim Bullock, M.D.Palo Alto, CA 943041790842763
- Christopher Capelle, MDPalo Alto, CA 943041902919640
- John Dorfman, M. D.Palo Alto, CA 943041912944687
- Carla Galloway, M.D.Palo Alto, CA 943041790881506
- Robert Hayward, MD, MPHPalo Alto, CA 943041437216744
Common questions
What is Mark Lewis Choa, M.D.'s NPI number?
Mark Lewis Choa, M.D.'s National Provider Identifier (NPI) is 1992966618, issued on Jun 25, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Mark Lewis Choa, M.D. located?
The NPPES record lists a practice address at 300 Pasteur Dr, Palo Alto, CA, 94304. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.
How can I verify Mark Lewis Choa, M.D.'s license?
NPPES lists California license number A110178, 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 Mark Lewis Choa, M.D. prescribe under Medicare Part D?
In 2024, Mark Lewis Choa, M.D. had 148 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
What is Mark Lewis Choa, M.D.'s MIPS final score?
The 2023 MIPS final score is 76.5 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.