Shauna Williams, M.D.
NPI 1821150285 · Colon & Rectal Surgery Physician · Boise, ID
Enrolled with Medicare as Practitioner - Colorectal Surgery (proctology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shauna Williams, M.D. is a Colon & Rectal Surgery Physician provider in Boise, ID (NPI 1821150285).
Provider details
- NPI number
- 1821150285
- Entity type
- Individual
- Primary specialty
- Colon & Rectal Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- M5849 (ID)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
34 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| 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 MonitoG0500 | 20 | $5 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 14 | $227 |
Typical Medicare-allowed amounts for these services range $5–$227 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$58 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 5080 E Commerce StNampa, ID 83687-5513Phone: (208) 489-1900
Registry dates
- Enumerated
- 2006-12-14
- Last updated
- 2025-12-05
- Certified
- 2025-12-05
Frequently asked questions
- What is Shauna Williams's NPI number?
- Shauna Williams's National Provider Identifier (NPI) is 1821150285, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shauna Williams's specialty?
- Shauna Williams is listed in the NPPES registry with a primary specialty of Colon & Rectal Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Shauna Williams located?
- Shauna Williams's practice location on file with NPPES is 6259 W Emerald St, Boise, ID 83704-8731.
- What is Shauna Williams's phone number?
- The practice phone number listed in the NPPES registry for Shauna Williams is (208) 489-1900.
- Does Shauna Williams accept Medicare?
- Shauna Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shauna Williams's NPI active?
- Yes — Shauna Williams's NPI (1821150285) is active in the NPPES registry as of the last update on 2025-12-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.