Alan Gy Chang, MD - Medicare Gastroenterology in Bellingham, WA

Alan Gy Chang, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Bellingham, Washington. He went to University Of Hawaii John A. Burns School Of Medicine and graduated in 1989 and has 35 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Aspirus Rhinelander And Tomahawk Hospitals And Clinics Inc and his current practice location is 3111 Woburn St Ste 201, Bellingham, Washington. You can reach out to his office (for appointments etc.) via phone at (360) 543-5054.

Alan Gy Chang is licensed to practice in Washington (license number MD00036498) 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 1255398285.

Contact Information

Alan Gy Chang, MD
3111 Woburn St Ste 201,
Bellingham, WA 98226-6610
(360) 543-5054
(360) 733-1659

Map and Direction




Physician's Profile

Full NameAlan Gy Chang
GenderMale
SpecialityGastroenterology
Experience35 Years
Location3111 Woburn St Ste 201, Bellingham, Washington
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:
  • Alan Gy Chang attended and graduated from University Of Hawaii John A. Burns School Of Medicine in 1989
  NPI Data:
  • NPI Number: 1255398285
  • Provider Enumeration Date: 04/26/2006
  • Last Update Date: 05/24/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 7719963230
  • Enrollment ID: I20220722002400

Medical Identifiers

Medical identifiers for Alan Gy Chang such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1255398285NPI-NPPES
8231334MedicaidWA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology MD00036498 (Washington)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ascension St Michaels HospitalStevens point, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Aspirus Rhinelander And Tomahawk Hospitals And Clinics Inc9335059856321

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. Alan Gy Chang allows following entities to bill medicare on his behalf.
Entity NamePraxis Health Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1821068164
PECOS PAC ID: 8325941446
Enrollment ID: O20040128000241

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. Alan Gy Chang 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
Alan Gy Chang, MD
3111 Woburn St Ste 201,
Bellingham, WA 98226-6610

Ph: (360) 543-5054
Alan Gy Chang, MD
3111 Woburn St Ste 201,
Bellingham, WA 98226-6610

Ph: (360) 543-5054

Reviews and Comments


Internal Medicine Doctors in Bellingham, WA

Colleen M Overdorf, DO
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 2901 Squalicum Pkwy, Bellingham, WA 98225
Phone: 360-739-2200    Fax: 360-752-5683
Hannah Sheinin, MD
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 2979 Squalicum Pkwy, Suite 301, Bellingham, WA 98225
Phone: 360-734-1420    Fax: 360-756-6666
Ankur Mogla, MD
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 410 Birchwood Ave Ste 200, Bellingham, WA 98225
Phone: 360-734-9233    
Dr. Sumner Todd Mcallister, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 722 N State St, Bellingham, WA 98225
Phone: 360-752-2865    
Amir Gharaei, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 3015 Squalicum Pkwy, Suite 140, Bellingham, WA 98225
Phone: 360-788-6112    
Scott Michael Letellier, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 3301 Squalicum Pkwy, Bellingham, WA 98225
Phone: 360-788-8222    Fax: 360-788-7759
Dr. Sukhjit Singh Shergill,
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 4545 Cordata Pkwy, Suite 2b, Bellingham, WA 98226
Phone: 360-738-2200    Fax: 360-752-5683

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.