Ernest Arras, MD
Internal Medicine Physician · Napa, CA
Ernest Arras, MD is an internal medicine physician with a practice address in Napa, California, and NPI 1174601900, issued on Nov 1, 2006. Check the license (California A23329, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Ernest Arras
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A23329 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3285 Claremont Way, Napa, CA 94558
- Phone
- (707) 258-2500
- Enumerated
- Nov 1, 2006
- Entity
- Type 1 · individual
Also registered at 3285 Claremont Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ernest Arras in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A23329Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
60 internal medicine physician records list a Napa practice address
They are 60 of the 3,583 NPPES records with a Napa practice address, and 20,403 internal medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 60 in Napa → All 20,403 in California → Every provider in Napa →
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Common questions
What is Ernest Arras, MD's NPI number?
Ernest Arras, MD's National Provider Identifier (NPI) is 1174601900, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ernest Arras, MD located?
The NPPES record lists a practice address at 3285 Claremont Way, Napa, CA, 94558. Phone: (707) 258-2500. Providers update this record themselves, so call before visiting.
How can I verify Ernest Arras, MD's license?
NPPES lists California license number A23329, 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.