Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

MS. Theresa Anne O' Hair, FNP

Individual provider Acute Care Nurse Practitioner · NPI 1942467519

MS. Theresa Anne O' Hair, FNP is a Nurse Practitioner in Oroville, California. Qualified in 2007, 19 years ago. Practices with Ampla Health, a 106-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
19
Licensed in
CA
In the registry since
2008
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

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Practice location Address checks out

2721 Olive Hwy
Oroville, CA 95966-6115
Phone: (530) 533-1554
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence 18067 (CA)

Record details

NPI number1942467519
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorNo
NPI enumeratedMay 20, 2008
Last updated in NPPESOctober 19, 2012

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2007 (19 years in practice)
Group practice Ampla Health — 106 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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