Dr Omar Darwish, DO - Medicare Internal Medicine in Orange, CA

  1. Home
  2. Hospitalist
  3. CA
  4. Orange
Dr Omar Darwish, DO is a medicare enrolled "Hospitalist" physician in Orange, California. He graduated from medical school in 2007 and has 17 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice The Regents Of The University Of California-irvine and his current practice location is 101 The City Dr S, Orange, California. You can reach out to his office (for appointments etc.) via phone at (714) 880-7812.

Dr Omar Darwish is licensed to practice in California (license number 20A10612) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1497980932.

Contact Information

Dr Omar Darwish, DO
101 The City Dr S,
Orange, CA 92868-3201
(714) 880-7812
Not Available

Map and Direction




Physician's Profile

Full NameDr Omar Darwish
GenderMale
SpecialityInternal Medicine
Experience17 Years
Location101 The City Dr S, Orange, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Omar Darwish graduated from medical school in 2007
  NPI Data:
  • NPI Number: 1497980932
  • Provider Enumeration Date: 05/28/2009
  • Last Update Date: 04/10/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 4981758950
  • Enrollment ID: I20090811000453

Medical Identifiers

Medical identifiers for Dr Omar Darwish such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1497980932NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208M00000XHospitalist 20A10612 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
University Of California Irvine Medical CenterOrange, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
The Regents Of The University Of California-irvine397160961161

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. Dr Omar Darwish allows following entities to bill medicare on his behalf.
Entity NameUc Regents
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760430847
PECOS PAC ID: 7416869516
Enrollment ID: O20031118000906
Entity NameThe Regents Of The University Of California-irvine
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154479723
PECOS PAC ID: 3971609611
Enrollment ID: O20070426000308
Entity NameMedison Corp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760050587
PECOS PAC ID: 6103229000
Enrollment ID: O20210729003556

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. Dr Omar Darwish 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
Dr Omar Darwish, DO
200 S Manchester Ave Ste 300,
Orange, CA 92868-3219

Ph: (714) 456-2986		Dr Omar Darwish, DO
101 The City Dr S,
Orange, CA 92868-3201

Ph: (714) 880-7812

Reviews and Comments


Hospitalist Doctors in Orange, CA

Dr. James W Roh, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 2501 E Chapman Ave, Orange, CA 92869
Phone: 714-639-9401    Fax: 714-639-7095
Anwar Abdelhadi, M.D.
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 2501 E Chapman Ave, Orange, CA 92869
Phone: 714-771-8000    
Amish Dangodara, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: Uci Medical Center, 101 The City Drive South, Orange, CA 92868
Phone: 714-456-8978    
Dr. Ani Bussel, M.D.
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 101 The City Dr S, Orange, CA 92868
Phone: 714-880-7812    
Dr. Andrea D. Avery, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 101 The City Dr S, Orange, CA 92868
Phone: 714-880-7812    
Kang Hsu, M.D.
Hospitalist
Medicare: Medicare Enrolled
Practice Location: 1310 W Stewart Dr, Suite 410, Orange, CA 92868
Phone: 714-639-9401    Fax: 714-639-7095
Lanny Lai Hsieh, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 101 The City Dr S, Orange, CA 92868
Phone: 714-456-8068    Fax: 714-456-3765

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.