Registry data as of Aug 27, 2026

Andrew Alexander, MD

Family Medicine Physician · Calistoga, CA

Andrew Alexander, MD is a family medicine physician with a practice address in Calistoga, California, and NPI 1710963400, issued on Dec 15, 2005. Check the license (California G50850, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1710963400
Name
Andrew Alexander
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
G50850 CA
Self-reported in NPPES; status is on the state search
Practice location
913 Washington St, Calistoga, CA 94515
Phone
(707) 942-6233
Enumerated
Dec 15, 2005
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 913 Washington St

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

  1. Daniel Haycraft, M.D.Psychiatry Physician1609938893
  2. Charles Hudson, MDPsychiatry Physician1679549281
  3. Kiran Ubhayakar, M.D.Pulmonary Disease Physician1881838605

Verify Andrew Alexander in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G50850
    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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

3 family medicine physician records list a Calistoga practice address

They are 3 of the 45 NPPES records with a Calistoga practice address, and 16,272 family medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other family medicine physician records in California

  1. Omer Aba-Omer, MDSanta Monica, CA1649702093
  2. Michelle Ababa, MDWilmington, CA1710922513
  3. Anna Tzeitel Abalos, MDRoseville, CA1720200017
  4. Adan Abarca, MDAnaheim, CA1760553689
  5. Vanessa Abarca, DOVentura, CA1952040859
  6. Lorraine Abate, M.D.Sacramento, CA1104840008
  7. Robert Abatecola, MDCastro Valley, CA1669551719
  8. Romeo Abaya, M.D.Cottonwood, CA1598053506
  9. Effiem Abbah, MD, MPHSan Francisco, CA1821185133
  10. Khuzeman Abbasi, MDSanta Rosa, CA1841979952

Common questions

What is Andrew Alexander, MD's NPI number?

Andrew Alexander, MD's National Provider Identifier (NPI) is 1710963400, issued on Dec 15, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Andrew Alexander, MD located?

The NPPES record lists a practice address at 913 Washington St, Calistoga, CA, 94515. Phone: (707) 942-6233. Providers update this record themselves, so call before visiting.

How can I verify Andrew Alexander, MD's license?

NPPES lists California license number G50850, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.