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Active NPI 1184706608 Individual Practitioner Male Practitioner

Dr. William Sprague Trask , DO

Anesthesiology • Boulder, CO

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. William Trask, DO is a certified Anesthesiology practicing in Boulder, CO. With approximately 20 years of clinical experience since graduating from At Still University Of Health Sciences, College Of Osteo Med, Kirksville in 2006, Dr. Trask delivers high-quality medical care to the local community at 4747 ARAPAHOE AVE.

Dr. Trask is affiliated with Boulder Valley Anesthesiology, Pllc and accepts Medicare assignment.

Frequently performed procedures and clinical services include anesthesia for lens surgery, injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve), anesthesia for procedure for total knee joint replacement. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

4747 Arapahoe Ave

Boulder, CO 803031131

Telephone 3034152532
Fax 3037851725
Associated Practice Facility / Clinic
🏢 Boulder Community Health Facility NPI 1821074196

Medicare Profile & Education

Medical School

At Still University Of Health Sciences, College Of Osteo Med, Kirksville

Graduation Year

2006

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Anesthesiology in Boulder, CO

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
20 Yrs -0.6 yrs vs City Avg
City Avg: 20.6 Yrs
State Avg: 24.2 Yrs
Regional Practice Density
36 Specialists

Practicing in Boulder, CO (1245 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
90.2% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Trask (20 Years) 20 Yrs
Boulder Specialty Average (20.6 Years) 20.6 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
00142 Anesthesia for lens surgery
78 78 $1223.08 $113.20
64447 Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve)
31 31 $514.90 $57.58
01402 Anesthesia for procedure for total knee joint replacement
26 26 $2669.23 $262.59

Medical Specialties & State Licenses

Anesthesiology Primary Specialty

NUCC Taxonomy Code: 207L00000X

State License CO 49491

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Anesthesiology

NUCC Taxonomy Code: 207L00000X

State License WA OL20000111

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Anesthesiology

NUCC Taxonomy Code: 207L00000X

State License WA OP60150344

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Hospital & Practice Group Affiliations

Boulder Valley Anesthesiology, Pllc

4747 Arapahoe Ave, Boulder, CO 803031131

Phone: 3034157000

Secondary Practice Locations

12040 Ne 128th St, Mail Stop #69

Kirkland, WA 980343013

Phone: 4258993455

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

4 Associated Practitioners
NPI 1205871969

Doctor of Medicine (M.D.)

NPI 1285873414

Doctor of Osteopathic Medicine (D.O.)

Michelle Kuei

Anesthesiology

NPI 1700311735
NPI 1942273065

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

9 Historical Events
📍
Updated Practice Location March 02, 2019

Registered at 4747 ARAPAHOE AVE, BOULDER, CO 803031131 (Tel: 3034152532)

📍
Updated Business Mailing Address March 02, 2019

Registered at PO BOX 21147, BOULDER, CO 803084147 (Tel: 3034152532)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 02, 2019

Anesthesiology (License #OL20000111 in WA)

NPI Profile Active December 19, 2010

NPI status registered as active in NPPES database

📍
Updated Practice Location December 19, 2010

Registered at 12040 NE 128TH ST, MAIL STOP #69, KIRKLAND, WA 980343013 (Tel: 4258993455)

📍
Updated Business Mailing Address December 19, 2010

Registered at 12040 NE 128TH ST, MAIL STOP #69, KIRKLAND, WA 980343013 (Tel: 4258993455)

👤
Provider Name / Credentials Updated December 19, 2010

Recorded as WILLIAM TRASK, D.O.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) December 19, 2010

Anesthesiology (License #OP60150344 in WA)

🟢
Initial NPI Registration & Enumeration October 20, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1184706608
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: October 20, 2006
Last Update: March 02, 2019
Sole Proprietor: No

Mailing Address

Po Box 21147

Boulder, CO 803084147

Phone: 3034152532

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.