Dr Katarzyna Twardowska, MD - Medicare Internal Medicine in Anaheim, CA

Dr Katarzyna Twardowska, MD is a medicare enrolled "Internal Medicine" physician in Anaheim, California. She graduated from medical school in 1989 and has 35 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Southern California Hospitalist Network Medical Group Inc and her current practice location is 1801 W Romneya Dr, Suite # 601b, Anaheim, California. You can reach out to her office (for appointments etc.) via phone at (714) 780-5695.

Dr Katarzyna Twardowska is licensed to practice in California (license number A69481) 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 1790881795.

Contact Information

Dr Katarzyna Twardowska, MD
1801 W Romneya Dr, Suite # 601b,
Anaheim, CA 92801-1830
(714) 780-5695
(714) 780-5694

Map and Direction




Physician's Profile

Full NameDr Katarzyna Twardowska
GenderFemale
SpecialityInternal Medicine
Experience35 Years
Location1801 W Romneya Dr, Anaheim, 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:
  • Dr Katarzyna Twardowska graduated from medical school in 1989
  NPI Data:
  • NPI Number: 1790881795
  • Provider Enumeration Date: 09/16/2006
  • Last Update Date: 07/09/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 4587788641
  • Enrollment ID: I20100826000947

Medical Identifiers

Medical identifiers for Dr Katarzyna Twardowska such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1790881795NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A69481 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Faith In Angels HospiceBurbank, CAHospice
Huntington Memorial HospitalPasadena, CAHospital
Huntington Post AcutePasadena, CANursing home

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Southern California Hospitalist Network Medical Group Inc892199011073

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 Katarzyna Twardowska allows following entities to bill medicare on her behalf.
Entity NameSouthern California Hospitalist Network Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1790880458
PECOS PAC ID: 8921990110
Enrollment ID: O20040324001749

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 Katarzyna Twardowska 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 Katarzyna Twardowska, MD
Po Box 8206,
Anaheim, CA 92812-0206

Ph: (714) 780-5695
Dr Katarzyna Twardowska, MD
1801 W Romneya Dr, Suite # 601b,
Anaheim, CA 92801-1830

Ph: (714) 780-5695

Reviews and Comments


Internal Medicine Doctors in Anaheim, CA

Richard Eugene Hughes, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1300 N. Kraemer Blvd., Anaheim, CA 92806
Phone: 714-630-6363    Fax: 714-630-1921
Michael Salvaggio, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: Kaiser Permanente-orange County, 411 N. Lakeview Ave, Anaheim, CA 92807
Phone: 714-279-4594    
Abraham Harn, DO
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1211 W La Palma Ave Ste 404, Anaheim, CA 92801
Phone: 714-772-8282    Fax: 714-772-6493
Aleem A Syed, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1211 W La Palma Ave, Suite 702, Anaheim, CA 92801
Phone: 714-533-0300    Fax: 714-533-0700
Dr. Jagminder Singh Bhalla, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1781 W Romneya Dr, Ste C, Anaheim, CA 92801
Phone: 714-956-3160    Fax: 714-956-1188
Dr. Ashley E. Mires, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1211 W La Palma Ave, #207, Anaheim, CA 92801
Phone: 714-772-8282    Fax: 714-772-6493
Hyon Chong Seo, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 441 N Lakeview Ave, Anaheim, CA 92807
Phone: 888-988-2800    

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.