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Active NPI 1245868157 Individual Practitioner Male Practitioner

Dr. William Francis Barker , DO

Internal Medicine • Springfield, MO

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. William Barker, DO is a certified Internal Medicine practicing in Springfield, MO. With approximately 6 years of clinical experience since completing medical education in 2020, Dr. Barker delivers high-quality medical care to the local community at 3801 S NATIONAL AVE STE 1122.

Dr. Barker is affiliated with Lester E Cox Medical Centers and accepts Medicare assignment.

Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, initial hospital care with straightforward or low-level medical decision making, if using time, at least, initial hospital care with moderate level of medical decision making, if using time, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

3801 S National Ave Ste 1122

Springfield, MO 658076090

Telephone 4172697728
Fax 4172697729
Associated Practice Facility / Clinic
🏢 Lester E Cox Medical Centers Facility NPI 1902969272

Medicare Profile & Education

Medical School

Other

Graduation Year

2020

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Springfield, MO

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
6 Yrs -16.2 yrs vs City Avg
City Avg: 22.2 Yrs
State Avg: 25.5 Yrs
Regional Practice Density
147 Specialists

Practicing in Springfield, MO (2747 Statewide)

Telehealth Adoption Rate
12.2% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
64.3% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Barker (6 Years) 6 Yrs
Springfield Specialty Average (22.2 Years) 22.2 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
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
350 116 $185.10 $73.30
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
100 99 $354.29 $122.04
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
94 94 $511.28 $161.51
99238 Hospital discharge day management, 30 minutes or less
70 70 $203.20 $74.89
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
30 15 $264.60 $110.38

Medical Specialties & State Licenses

CMS Verified: 2023-10-10
Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License MO 2023013570

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Hospital & Practice Group Affiliations

Lester E Cox Medical Centers

3801 S National Ave, Springfield, MO 658076090

Phone: 4172697728

Lester E Cox Medical Centers

3801 S National Ave, Springfield, MO 658075210

Phone: 4172697820

Lester E Cox Medical Centers

3801 S National Ave, Springfield, MO 658075210

Phone: 4172697728

Practice Associates & Co-Workers

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

40 Associated Practitioners
Dawn Viets , NNP

Nurse Practitioner - Pediatrics

NPI 1053359091
Cindy Yager , FNP

Nurse Practitioner - Family

NPI 1053708040

Family Nurse Practitioner

Dr. Betty Abban , MD

Internal Medicine

NPI 1063893162

Doctor of Medicine (M.D.)

Traci Bilyeu , PA-C

Physician Assistant

NPI 1073653135

Physician Assistant (Certified)

Dr. Brittany Montavon , MD

Pediatrics - Neonatal-Perinatal Medicine

NPI 1073909214

Doctor of Medicine (M.D.)

Dr. Nana Gaisie , MD

Internal Medicine

NPI 1083857965

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 October 10, 2023

Registered at 3801 S NATIONAL AVE STE 1122, SPRINGFIELD, MO 658076090 (Tel: 4172697728)

📍
Updated Business Mailing Address October 10, 2023

Registered at PO BOX 802843, KANSAS CITY, MO 641802843 (Tel: 4177306430)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) October 10, 2023

Internal Medicine (License #2023013570 in MO)

NPI Profile Active March 28, 2020

NPI status registered as active in NPPES database

📍
Updated Practice Location March 28, 2020

Registered at 2900 HAWKINS DR, SEARCY, AR 721434802 (Tel: 5012782800)

📍
Updated Business Mailing Address March 28, 2020

Registered at 2900 HAWKINS DR, SEARCY, AR 721434802 (Tel: 5012782800)

👤
Provider Name / Credentials Updated March 28, 2020

Recorded as WILLIAM BARKER, DO

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 28, 2020

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration March 28, 2020

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: 1245868157
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 28, 2020
Last Update: October 10, 2023
Sole Proprietor: Yes

Mailing Address

Po Box 802843

Kansas City, MO 641802843

Phone: 4177306430

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.