Grietje Van Dyk, MD - Medicare Orthopaedic Surgery in Los Alamitos, CA

Grietje Van Dyk, MD is a medicare enrolled "Orthopaedic Surgery" physician in Los Alamitos, California. Her current practice location is 3851 Katella Ave Ste 150, Los Alamitos, California. You can reach out to her office (for appointments etc.) via phone at (562) 314-1400.

Grietje Van Dyk is licensed to practice in California (license number G61231) 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 1003126830.

Contact Information

Grietje Van Dyk, MD
3851 Katella Ave Ste 150,
Los Alamitos, CA 90720-3353
(562) 314-1400
(562) 431-0564

Map and Direction




Physician's Profile

Full NameGrietje Van Dyk
GenderFemale
SpecialityOrthopaedic Surgery
Location3851 Katella Ave Ste 150, Los Alamitos, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1003126830
  • Provider Enumeration Date: 10/14/2010
  • Last Update Date: 10/27/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 5698934826
  • Enrollment ID: I20120307000949

Medical Identifiers

Medical identifiers for Grietje Van Dyk such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1003126830NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207X00000XOrthopaedic Surgery G61231 (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. Grietje Van Dyk allows following entities to bill medicare on her behalf.
Entity NameOrthowest
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760007330
PECOS PAC ID: 3072932623
Enrollment ID: O20200930002560

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. Grietje Van Dyk 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
Grietje Van Dyk, MD
3851 Katella Ave Ste 150,
Los Alamitos, CA 90720-3353

Ph: (562) 314-1400
Grietje Van Dyk, MD
3851 Katella Ave Ste 150,
Los Alamitos, CA 90720-3353

Ph: (562) 314-1400

Reviews and Comments


Orthopaedic Surgery Doctors in Los Alamitos, CA

Mr. Arnie Perea Bergula, PAC
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 3771 Katella Ave, Suite 209, Los Alamitos, CA 90720
Phone: 562-314-1400    Fax: 562-431-0564
Joseph B Alban, M.D.
Orthopedic Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 4290 Katella Ave, Los Alamitos, CA 90720
Phone: 562-493-4499    Fax: 562-493-6512
Dr. Leah M Pike, MD
Orthopedic Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 3742 Katella Ave, 303, Los Alamitos, CA 90720
Phone: 562-936-9200    Fax: 562-936-9201
Raymond A. Klug, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 3771 Katella Ave, #310, Los Alamitos, CA 90720
Phone: 562-430-3561    Fax: 562-431-8882
Seymour L Alban, M.D.
Orthopedic Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 4290 Katella Ave, Los Alamitos, CA 90720
Phone: 562-493-4499    Fax: 562-493-6512
Dr. Andrew Maxwell Hanflik, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 3851 Katella Ave Ste 150, Los Alamitos, CA 90720
Phone: 562-314-1400    Fax: 562-431-0564

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.