James Alden Armontrout, MD
Addiction Psychiatry Physician · Palo Alto, CA
James Alden Armontrout, MD is an addiction psychiatry physician with a practice address in Palo Alto, California, and NPI 1215202403, issued on Mar 20, 2012. Check the license (California A138817, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James Alden Armontrout
- Credential
- MD
- Primary taxonomy
- Addiction Psychiatry Physician 2084P0802X
- License number
- A138817 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
- Mar 20, 2012
- Record last updated
- Apr 27, 2024
- Medicare enrollment
- Enrolled (PECOS I20220204000228); accepts Medicare assignment
- Medical or professional school
- University Of Virginia School Of Medicine, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 300 Pasteur Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jose Acosta, MDEmergency Medicine Physician1104454446
- Connor Adams, PSYDClinical Psychologist1467081216
- Tracie Adamson, NPNurse Practitioner1982765145
- Aderinsola Aderonmu, MSStudent in an Organized Health Care Education/Training Program1083301196
Verify James Alden Armontrout in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A138817Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average addiction psychiatry physician in 2024
97 Medicare Part D claims for 11 beneficiaries, against an average of 716 among the 421 providers of this specialty who prescribed in Part D.
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.
Addiction Psychiatry Physician providers in California
There are 73 addiction psychiatry physician records in California.
Other addiction psychiatry physician records in California
- Steven Allen, M.D.Sylmar, CA1700144557
- Eva Altobelli, MDSanta Monica, CA1790990620
- Robert Anthenelli, M.D.San Diego, CA1225139306
- Sean Barlow, M.D.Palm Desert, CA1386653178
- Ori-Michael Benhamou, M.D.Mountain View, CA1194169052
- Adam Berns, MDWoodside, CA1669835047
- Allison Botwin, M.D.Rancho Mirage, CA1013969161
- William Brostoff, MDVallejo, CA1467530352
- Matthew Campbell, M.D.Sacramento, CA1841645223
- Timmen Cermak, M.D.Mill Valley, CA1235341330
Common questions
What is James Alden Armontrout, MD's NPI number?
James Alden Armontrout, MD's National Provider Identifier (NPI) is 1215202403, issued on Mar 20, 2012. An NPI identifies a provider in billing; it is not a license.
Where is James Alden Armontrout, MD 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 James Alden Armontrout, MD's license?
NPPES lists California license number A138817, 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 James Alden Armontrout, MD prescribe under Medicare Part D?
In 2024, James Alden Armontrout, MD had 97 Medicare Part D claims for 11 beneficiaries; the average among addiction psychiatry physician prescribers was 716. Part D covers Medicare prescriptions only.
What is James Alden Armontrout, MD'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.