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

Mary Theresa Steinhoff, FNP

Individual provider Family Nurse Practitioner · NPI 1538525381

Mary Theresa Steinhoff, FNP is a Nurse Practitioner in Fallbrook, California. Qualified in 2015, 11 years ago. Practices with Rancho Family Medical Group Inc, a 112-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
11
Licensed in
CA
In the registry since
2016
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

521 E Elder St Ste 105
Fallbrook, CA 92028-3082
Phone: (760) 728-8344
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 28780 Single Oak Dr Ste 260, Temecula, CA 92590-5534 — (951) 676-4193

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 95003293 (CA)

Record details

NPI number1538525381
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorNo
NPI enumeratedJanuary 9, 2016
Last updated in NPPESFebruary 20, 2020
Certification dateFebruary 20, 2020

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Rancho Family Medical Group Inc — 112 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Other providers in Fallbrook