Katharine M O'brien, DO - Medicare Family Practice in Menifee, CA

Katharine M O'brien, DO is a medicare enrolled "Family Medicine" physician in Menifee, California. She graduated from medical school in 1995 and has 29 years of diverse experience with area of expertise as Family Practice. She is a member of the group practice Kolli Medical Corporation and her current practice location is 30420 Haun Rd, Menifee, California. You can reach out to her office (for appointments etc.) via phone at (951) 676-4193.

Katharine M O'brien is licensed to practice in California (license number 20A7203) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1083720718.

Contact Information

Katharine M O'brien, DO
30420 Haun Rd,
Menifee, CA 92584-6810
(951) 676-4193
(951) 719-1469

Map and Direction




Physician's Profile

Full NameKatharine M O'brien
GenderFemale
SpecialityFamily Practice
Experience29 Years
Location30420 Haun Rd, Menifee, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Katharine M O'brien graduated from medical school in 1995
  NPI Data:
  • NPI Number: 1083720718
  • Provider Enumeration Date: 08/23/2006
  • Last Update Date: 04/18/2017
  Medicare PECOS Information:
  • PECOS PAC ID: 1557490828
  • Enrollment ID: I20170428000595

Medical Identifiers

Medical identifiers for Katharine M O'brien such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1083720718NPI-NPPES
044569403MedicaidTX
044569404MedicaidTX
044569401MedicaidTX

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine K6898 (Texas)Secondary
207Q00000XFamily Medicine 20A7203 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Kolli Medical Corporation49818274904

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Katharine M O'brien allows following entities to bill medicare on her behalf.
Entity NameKolli Medical Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1659716884
PECOS PAC ID: 4981827490
Enrollment ID: O20140529002358

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Katharine M O'brien is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Katharine M O'brien, DO
28780 Single Oak Dr, Ste 160,
Temecula, CA 92590-5528

Ph: (951) 676-4193
Katharine M O'brien, DO
30420 Haun Rd,
Menifee, CA 92584-6810

Ph: (951) 676-4193

Reviews and Comments


Family Medicine Doctors in Menifee, CA

Daniel Camarillo Jr., MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 30420 Haun Rd, Menifee, CA 92584
Phone: 951-676-4193    
Dr. Rolando Gutierrez, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 30420 Haun Rd, Menifee, CA 92584
Phone: 951-676-4193    Fax: 951-225-6865
Mr. Richard Eric James Madrid, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 30420 Haun Rd, Menifee, CA 92584
Phone: 951-676-4193    
Susan Behnawa, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 27190 Sun City Blvd, Menifee, CA 92586
Phone: 951-676-4193    
Mariam Dehyar, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 27168 Newport Rd, Suite 1, Menifee, CA 92584
Phone: 951-246-3033    Fax: 951-246-7373
Christopher Aron Sanders, FNP-BC
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 30243 Westlake Dr, Menifee, CA 92584
Phone: 951-252-7930    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.