Katharine Castillo, FNP
5.0(29 reviews)
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Office Hours

  • Mon:7:00am - 5:00pm
  • Tue:7:00am - 5:00pm
  • Wed:7:00am - 5:00pm
  • Thu:7:00am - 5:00pm
  • Fri:7:00am - 5:00pm

Katharine Castillo, FNP
Nurse Practitioner - Family

Biography

Katharine Castillo, FNP is a Nurse Practitioner - Family practicing in Tucson, AZ

She has not yet shared a personalized biography with Doctor.com.

Featured Review See More Reviews

I've recommend multiple people to see Katherine.…

Anonymous

Summary

Specialties

Languages Spoken
English
Medical Specialties
  • Nurse Practitioner - Sub-Specialty: Family

Accepts New Patients: Yes

Payment Options

Payment Details

Reviews

Average Rating: 5.0
Number of Reviews: 29
Most Recent Review: 08/17/2026
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Office & Staff Evaluation 5.0

Ease of Getting an Appointment 5.0
Courtesy of Practice Staff Not rated
Office Appearance & Atmosphere Not rated
Handling of Billing Matters Not rated
Average Wait Time Not Rated

Provider Evaluation 5.0

Listening Skills 5.0
Clear Explanations 5.0
Trust in Decision Making 5.0
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Verified Patient

“I've recommend multiple people t...”

I've recommend multiple people to see Katherine.

Anonymous 08/17/2026
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Verified Patient

“My years with Dr CASTILLO HAVE B...”

My years with Dr CASTILLO HAVE BEEN GREAT

Anonymous 07/18/2026
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Verified Patient

“Great listener explains well...”

Great listener explains well

Anonymous 05/25/2026
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Verified Patient

“Katie is an excellent primary ca...”

Katie is an excellent primary care provider. I am delighted that my insurance allows me to see her as a preferred Provider!

Anonymous 04/23/2026
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Verified Patient

“I recommended my family to Kathe...”

I recommended my family to Katherine Castillo

Anonymous 01/30/2026
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Verified Patient

“Katharine Castillo is very empat...”

Katharine Castillo is very empathetic and listens. I really appreciate her thoughtfulness.

Anonymous 07/29/2026
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Verified Patient

“Perfect...”

Perfect

Anonymous 06/02/2026
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Verified Patient

“I have had Katherine Castillo fo...”

I have had Katherine Castillo for quite a few years and I have always been very pleased with the way that she responds to me and helps me come up with a treatment plan.

Anonymous 05/05/2026
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Verified Patient

“I had to find a new NP after my ...”

I had to find a new NP after my previous one left town suddenly. I was so lucky to find Katherine Castillo and have recommended her to other people. She is so kind and attentive.

Anonymous 02/04/2026
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Verified Patient

“It was very comfortable...”

It was very comfortable

Anonymous 01/28/2026
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Locations

Affiliated Practices

Practice Colleagues

Chadi Berjaoui, MD   -   Family Medicine Physician
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David Los, DO   -   Family Medicine Physician
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Cynthia Diaz, FNP-C   -   Nurse Practitioner
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Procedures & Services

Procedures & Treatments Offered

    Commonly Prescribed Medications

    Katharine Castillo, FNP has not yet listed the medications that she commonly prescribes.

    Accepted Insurance

    Accepted Insurance

    Katharine Castillo, FNP has not yet specified the insurance plans she accepts.