Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Susan Kathleen Guy, MD
Psychiatry Physician in Oxnard, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1902821309
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Registry record
Entity type Individual (Type 1)
Name Susan Kathleen Guy
Credential MD
Sex Female
Practice address 2200 E Gonzales Rd, Oxnard, CA, 93036
Phone (805) 604-6060
Fax (805) 604-6061
Enumeration date Jul 13, 2006
Last updated in NPPES Dec 2, 2021
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 00C639870 | Other | CA | MEDICAL PPIN # |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where does Susan Guy practice?
The practice location on file with NPPES is in Oxnard, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Susan Guy?
The National Provider Identifier (NPI) for Susan Guy is 1902821309, a Type 1 (individual) record in the CMS NPPES registry.
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-02.