Katharine O’Brien, DO
Family Medicine
Geriatric Medicine · Women's Health
Office Location
How to choose Katharine O’Brien, DO as your primary doctor
How do I make Katharine O’Brien, DO my primary care doctor (PCP)?
Call the member services number on the back of your insurance card and ask to set this doctor as your primary care doctor. Your health plan makes the change. The doctor's office cannot make it for you.
Have this ready when you call your plan:
- Doctor
- Katharine O’Brien, DO
- NPI number
- 1083720718
- Office address
- 1280 E. Latham Avenue, Hemet, CA 92543
- Office phone
- (951) 929-8121
When does the change take effect?
Plans usually make the change effective on the 1st of the following month. Your plan will confirm the exact date on the call.
Does this office accept my insurance?
Before you switch, call the office at (951) 929-8121 to confirm your insurance is accepted.
Can PromiseCare help me decide?
You are welcome to call PromiseCare Member Services at (951) 791-1111 with questions about any of our doctors. We can answer questions, but we cannot recommend one doctor over another, and only your health plan can make the change.
Map
Patient Resources New patient forms, notices, directives, and more 11 items
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New Patient Forms
Intake forms for new patients. Please complete before your first visit.
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Notice of Privacy Practices
How your medical information may be used and disclosed, and your rights regarding it.
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Authorization to Disclose Health Information
Use this form to authorize release of medical records to another person or entity.
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Controlled Substance Agreement
For patients prescribed controlled medications.
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Physician-Patient Arbitration Agreement
Required under California Code of Civil Procedure § 1295.
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Staying Healthy Adult Assessment
Health assessment questionnaire for adult patients.
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Medications Record
Track your current medications, dosages, and prescribing providers.
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TB Test Form
For established adult patients with no prior TB test or prior negative result.
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IHA Periodic Assessment
Initial Health Assessment periodic evaluation form.
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NextMD Patient Portal Instructions
How to sign up for and use the NextMD patient portal.
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Contrato de Narcóticos (Español)
Para pacientes a quienes se les recetan medicamentos controlados.
At a Glance
About
Dr. Katharine O'Brien is a board-certified osteopathic family medicine physician practicing in Hemet, California. Dr. Katharine O'Brien is a board-certified, California-licensed Osteopathic Medicine specialist and Family Practice physician. She is a graduate of Western University of Health Sciences and College of Osteopathic Medicine of The Pacific, where she earned her Doctor of Osteopathic Medicine degree in 1995.
With over 30 years of experience in the medical field, Dr. O'Brien has dedicated her career to providing comprehensive healthcare to patients and families. Dr. O'brien graduated from Western University of Health Sciences College of Osteopathic Medicine of the Pacific and completed her residency at Univ Of Tn Coll Of Med, Family Medicine; Nycom-N Y Methodist Hosp, Flexible Or Transitional Year. Dr. O'Brien specializes in Family Medicine, has 30 years of experience, and is board certified in Family Practice by the American Board of Family Medicine.
Dr. O'Brien's practice encompasses family medicine, geriatric medicine, and women's health, reflecting her commitment to caring for patients across all stages of life. Preventive medicine is also a major focus of her practice. Dr. O'Brien has a broad range of healthcare experience and understands that patient treatment goes beyond simply diagnosing and treating the symptoms. Her patients can enjoy whole health care, through consideration of their spiritual, physical, mental and emotional needs. She is affiliated with multiple medical facilities including St. David's Medical Center, City of Hope Helford Clinical Research Hospital, Hemet Global Medical Center, Menifee Global Medical Center, and Pen Bay Medical Center.
Dr. O'Brien is fluent in English, Castilian, and Spanish. Her practice is located in Hemet with additional offices in Temecula, California, where she continues to provide compassionate, patient-centered care to the community.
Conditions Treated
Procedures Performed
Affiliated Organization
Hemchand Kolli, MD — PrimaryWhere Katharine O’Brien, DO Practices
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Medical Office
Hemchand Kolli, MD
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Board Certifications
- Family Practice — American Board of Family Medicine
Education & Training
Hospital Affiliations
- St. David's Medical Center
- City of Hope Helford Clinical Research Hospital
- Hemet Global Medical Center
- Menifee Global Medical Center
- Pen Bay Medical Center
- Ascension Seton Medical Center Austin