Dr Derek T Phan, MD - Medicare Internal Medicine in Westminster, CA

  1. Home
  2. Internal Medicine
  3. CA
  4. Westminster
Dr Derek T Phan, MD is a medicare enrolled "Internal Medicine" physician in Westminster, California. His current practice location is 9191 Bolsa Ave Ste 205, Westminster, California. You can reach out to his office (for appointments etc.) via phone at (714) 891-7035.

Dr Derek T Phan is licensed to practice in California (license number A99908) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1073729588.

Contact Information

Dr Derek T Phan, MD
9191 Bolsa Ave Ste 205,
Westminster, CA 92683-5561
(714) 891-7035
Not Available

Map and Direction




Physician's Profile

Full NameDr Derek T Phan
GenderMale
SpecialityInternal Medicine
Location9191 Bolsa Ave Ste 205, Westminster, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1073729588
  • Provider Enumeration Date: 05/14/2007
  • Last Update Date: 10/07/2009
  Medicare PECOS Information:
  • PECOS PAC ID: 1951451418
  • Enrollment ID: I20090604000347

Medical Identifiers

Medical identifiers for Dr Derek T Phan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1073729588NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A99908 (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. Dr Derek T Phan allows following entities to bill medicare on his behalf.
Entity NameDerek Truong Phan Md Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1598091837
PECOS PAC ID: 8921142878
Enrollment ID: O20100216000898
Entity NameFamily Choice Aco Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1164988168
PECOS PAC ID: 0941634919
Enrollment ID: O20191227001654
Entity NameFamily Choice Aco Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1396416863
PECOS PAC ID: 7719379395
Enrollment ID: O20220111000260

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 Derek T Phan 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 Derek T Phan, MD
9191 Bolsa Ave Ste 205,
Westminster, CA 92683-5561

Ph: (714) 891-7035		Dr Derek T Phan, MD
9191 Bolsa Ave Ste 205,
Westminster, CA 92683-5561

Ph: (714) 891-7035

Reviews and Comments


Internal Medicine Doctors in Westminster, CA

Theresa Thanh Ngoc Nguyen, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 15576 Brookhurst St Ste B, Westminster, CA 92683
Phone: 714-775-8090    Fax: 714-775-2998
Dr. Hieu N Tram, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 15355 Brookhurst Street, Suite 102, Westminster, CA 92683
Phone: 714-775-3060    Fax: 714-531-0959
Dr. Vu Le, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 9938 Bolsa Ave, Suite 205, Westminster, CA 92683
Phone: 714-531-9515    Fax: 714-531-9510
Dr. Loc Dac Bui, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 8900 Bolsa Ave, Suite B, Westminster, CA 92683
Phone: 714-897-2623    Fax: 714-379-0343
Paul T. Duong, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 9433 Bolsa Ave, Suite # A, Westminster, CA 92683
Phone: 714-839-7332    
David N Pham, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 14120 Beach Blvd 101, Westminster, CA 92683
Phone: 714-887-0400    Fax: 714-887-0701
Phuong-chi Phan, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 14571 Magnolia St, Suite 207, Westminster, CA 92683
Phone: 714-890-9241    Fax: 714-890-9541

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.