Healthcare Provider Details

I. General information

NPI: 1952573826
Provider Name (Legal Business Name): JOHN CHRISTIAN ONEIL M.D.
Entity Type: Individual
Gender: Male
Sole Proprietor: Y

II. Dates (important events)

Enumeration Date: 03/31/2008
Last Update Date: 07/02/2026
Certification Date: 07/02/2026
Deactivation Date:
Reactivation Date:

III. Provider practice location address

3076 MYRTLEDALE RD
CALISTOGA CA
94515-1052
US

IV. Provider business mailing address

PO BOX 1793
MIDDLETOWN CA
95461-1793
US

V. Phone/Fax

Practice location:
  • Phone: 707-942-6888
  • Fax:
Mailing address:
  • Phone: 505-506-4044
  • Fax:

VI. Provider taxonomy

Scope of Practice (Provider specialty)

# 1
Primary TaxonomyY
Taxonomy Code208D00000X
TaxonomyGeneral Practice Physician
License NumberA118663
License Number StateCA

VIII. Authorized Official

Name:
Title or Position:
Credential:
Phone: