SHAUNA WILLIAMS M.D.
NPI 1821150285
Colon & Rectal Surgery in Boise, ID

Q: What is Shauna Williams's NPI number?

The NPI number for Shauna Williams is 1821150285. It was assigned to this individual provider in the NPPES registry on December 14, 2006.

Q: What is Shauna Williams's specialty?

The primary specialty registered for this NPI is Colon & Rectal Surgery with taxonomy code 208C00000X.

Q: When was this NPI record last updated?

The NPPES record for Shauna Williams was last updated on December 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since December 14, 2006PECOS EnrolledAccepts Medicare Assignment

6259 W EMERALD ST, BOISE, ID 83704(208) 489-1900 Get Directions Write a Review

NPPES record last updated: December 5, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 5, 2025, Apr 5, 2022, Nov 15, 2016 (3 updates tracked since 2016).

On this page

About Shauna Williams M.d. NPPES

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

SHAUNA WILLIAMS M.D. (NPI 1821150285) is an individual colon & rectal surgery provider in Boise, Idaho, licensed in Idaho (M5849) and active in the NPI registry since December 2006. She is enrolled in Medicare PECOS, maintains a secondary practice location in Nampa, and is a graduate of University Of Hawaii John A. Burns School Of Medicine (1984).

NPPES Registry Identity

NPI1821150285

Entity TypeIndividualFemale

Primary Taxonomy208C00000X

Provider Legal NameSHAUNA WILLIAMSCredential: M.D.

Location Address6259 W EMERALD STBoise, ID 83704-8731

Mailing Address6259 W Emerald StBoise, ID 83704-8731 · (208) 489-1900 · Fax (208) 375-5286

Phone(208) 489-1900

Sole ProprietorNo

Medical School CMSUniversity Of Hawaii John A. Burns School Of MedicineGraduated 1984

Enumeration DateDecember 14, 2006

Last NPPES UpdateDecember 5, 20253 updates tracked since enumeration

NPPES CertifiedDecember 5, 2025

✔ NPI 1821150285 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyColon & Rectal SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code208C00000X

License✔ Licensed in ID · M5849

Definition

A colon and rectal surgeon is trained to diagnose and treat various diseases of the intestinal tract, colon, rectum, anal canal and perianal area by medical and surgical means. This specialist also deals with other organs and tissues (such as the liver, urinary and female reproductive system) involved with primary intestinal disease.

6259 W EMERALD ST, Boise, ID 83704

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Secondary Practice Location 1

Location 15080 E Commerce StNampa, ID 83687-5513 · Phone (208) 489-1900

Other Identifiers 1

Other1821150285ID · Npi

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Moda Health Plan, Inc., Molina Healthcare, PacificSource Health Plans and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Shauna Williams 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 ID4385720507

PECOS Enrollment IDI20080327000451

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.

Medicare Billing Reassignments

Medicare enrollment records show Shauna Williams reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Digestive Health Clinic LLC

Same address

Gastroenterology

6259 W EMERALD ST
Boise, ID 83704

Reassigned Medicare billing, Idaho enrollment
23 clinicians in this Medicare group

NPI 1750498333 (208) 489-1900

Saint Alphonsus Regional Medical Center Inc

0.2 mi

Psychologist

1055 N CURTIS RD
Boise, ID 83706

Reassigned Medicare billing, Idaho enrollment
781 clinicians in this Medicare group

NPI 1649357716 (208) 367-4148

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

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.

Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito G0500

Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.

20 services20 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.

14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 83704 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

$81.13 typical visit price

range $52.44 – $160.17

Typical copayment $20.28 (range $13.11 – $40.04)

Most-billed visit code 99203

Established Patient

$65.77 typical visit price

range $16.68 – $130.93

Typical copayment $16.44 (range $4.17 – $32.73)

Most-billed visit code 99213

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

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Ostomy skin barrier, solid 4 x 4 or equivalent, extended wear, without built-in convexity, each A4385

DME-Orthotic Devices · category DF010N

2 suppliers13 claims168 services$4.32 avg. paid by Medicare

Ostomy skin barrier, with flange (solid, flexible, or accordion), extended wear, with built-in convexity, 4 x 4 inches or smaller, each A4407

DME-Orthotic Devices · category DF010N

2 suppliers16 claims194 services$7.36 avg. paid by Medicare

Ostomy pouch, drainable; for use on barrier with flange (2 piece system), each A5063

DME-Orthotic Devices · category DF010N

2 suppliers14 claims242 services$2.18 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

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

DR. CHRISTOPHER J GOULET M.D.

Internal Medicine (Gastroenterology)