ALAN G.Y. CHANG M.D.
NPI 1255398285
Internal Medicine - Gastroenterology in Bellingham, WA

Q: What is Alan Chang's NPI number?

The NPI number for Alan Chang is 1255398285. It was assigned to this individual provider in the NPPES registry on April 26, 2006.

Q: What is Alan Chang's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Alan Chang was last updated on May 24, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since April 26, 2006PECOS EnrolledAccepts Medicare Assignment

3111 WOBURN ST STE 201, BELLINGHAM, WA 98226(360) 543-5054(360) 733-1659 Get Directions Write a Review

NPPES record last updated: May 24, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: May 24, 2023, Aug 18, 2022, Jul 29, 2022 and 1 more (4 updates tracked since 2022).

On this page

About Alan G.y. Chang M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALAN G.Y. CHANG M.D. (NPI 1255398285) is an individual gastroenterology provider in Bellingham, Washington, licensed in Washington (MD00036498) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, is affiliated with Aspirus Stevens Point Hospital & Clinics, Inc., and maintains a secondary practice location in Bend.

NPPES Registry Identity

NPI1255398285

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameALAN G.Y. CHANGCredential: M.D.

Location Address3111 WOBURN ST STE 201Bellingham, WA 98226-6610

Mailing Address3111 Woburn St Ste 201Bellingham, WA 98226-6610 · (360) 543-5054 · Fax (360) 733-1659

Phone(360) 543-5054

Fax(360) 733-1659

Sole ProprietorNo

Medical School CMSUniversity Of Hawaii John A. Burns School Of MedicineGraduated 1989

Enumeration DateApril 26, 2006

Last NPPES UpdateMay 24, 20234 updates tracked since enumeration

NPPES CertifiedMay 24, 2023

✔ NPI 1255398285 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in WA · MD00036498

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

3111 WOBURN ST STE 201, Bellingham, WA 98226

Open in Google Maps ↗

Secondary Practice Location 1

Location 11342 NE Medical Center Dr Ste 100Bend, OR 97701-5918 · Phone (541) 706-5777 · Fax (541) 429-6642

Other Identifiers 1

Medicaid8231334WA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Aspirus Health Plan, HealthPartners.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Alan G.y. Chang M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7719963230

PECOS Enrollment IDI20220722002400

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

39 services39 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

34 services34 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

21 services18 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Aspirus Stevens Point Hospital & Clinics, Inc.

Acute Care Hospitals · Stevens Point, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number520002

Location900 Illinois AveStevens Point, WI 54481 · Portage County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98226 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$130.99 typical visit price

range $57.27 – $172.80

Typical copayment $32.74 (range $14.31 – $43.20)

Most-billed visit code 99204

Established Patient

$100.78 typical visit price

range $18.56 – $141.11

Typical copayment $25.19 (range $4.64 – $35.27)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 12

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JODY L BAUER ARNP

Nurse Practitioner (Family)