Karen Eva Halldorsdottir, MD - Medicare Psychiatry & Neurology in Orange, CA

Karen Eva Halldorsdottir, MD is a medicare enrolled "Psychiatry & Neurology - Neurology" physician in Orange, California. Her current practice location is 200 S Manchester Ave Ste 110, Orange, California. You can reach out to her office (for appointments etc.) via phone at (714) 456-2332.

Karen Eva Halldorsdottir is licensed to practice in California (license number A177325) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1669964540.

Contact Information

Karen Eva Halldorsdottir, MD
200 S Manchester Ave Ste 110,
Orange, CA 92868-3214
(714) 456-2332
Not Available

Map and Direction




Physician's Profile

Full NameKaren Eva Halldorsdottir
GenderFemale
SpecialityPsychiatry & Neurology - Neurology
Location200 S Manchester Ave Ste 110, Orange, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1669964540
  • Provider Enumeration Date: 06/05/2018
  • Last Update Date: 10/10/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 1951656537
  • Enrollment ID: I20230531000822

Medical Identifiers

Medical identifiers for Karen Eva Halldorsdottir such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1669964540NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084N0400XPsychiatry & Neurology - Neurology A177325 (California)Primary

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. Karen Eva Halldorsdottir allows following entities to bill medicare on her behalf.
Entity NameRegents Of The University Of Claifornia Univ Neursciences
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1205884210
PECOS PAC ID: 2769476357
Enrollment ID: O20040414001576

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. Karen Eva Halldorsdottir 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
Karen Eva Halldorsdottir, MD
200 S Manchester Ave Ste 300,
Orange, CA 92868-3219

Ph: (714) 456-2986
Karen Eva Halldorsdottir, MD
200 S Manchester Ave Ste 110,
Orange, CA 92868-3214

Ph: (714) 456-2332

Reviews and Comments


Psychiatry & Neurology Doctors in Orange, CA

Demi Tran,
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Dr. Sailaja Golla, MD
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Dr. Nancy Lee Tran Dom, M.D.
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Phone: 714-456-5770    
Dr. Andrew Richard Mcintosh, MD
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Practice Location: 101 The City Dr S, Pediatric Neurology Zot 4482, Orange, CA 92868
Phone: 714-456-5631    

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.

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