Active NPI 1457501025 Individual Practitioner Male Practitioner

William N Barker , ACNP

Nurse Practitioner - Acute Care • Longview, TX

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

William Barker, ACNP is a certified Nurse Practitioner - Acute Care practicing in Longview, TX. With approximately 18 years of clinical experience since completing medical education in 2008, William Barker delivers high-quality medical care to the local community at 703 E MARSHALL AVE.

William Barker is affiliated with Christus Trinity Clinic and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's, routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

703 E Marshall Ave
Suite 5008

Longview, TX 756015500

Telephone 9033154880

Fax 9033152833

Associated Practice Facility / Clinic

🏢 Good Shepherd Ambulatory Surgical Center Ltd Facility NPI 1255317384

Medicare Profile & Education

Medical School

Other

Graduation Year

2008

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Nurse Practitioner - Acute Care in Longview, TX

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

18 Yrs +11.4 yrs vs City Avg

City Avg: 6.6 Yrs

State Avg: 8.4 Yrs

Regional Practice Density

29 Specialists

Practicing in Longview, TX (3268 Statewide)

Telehealth Adoption Rate

6.9% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

70.8% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Barker (18 Years) 18 Yrs

Longview Specialty Average (6.6 Years) 6.6 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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	405	222	$289.00	$81.09
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's	139	91	$22.79	$13.79
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	54	52	$19.00	$6.76
99213 Established patient office or other outpatient visit, typically 15 minutes	21	20	$204.00	$54.76

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	438	272	$289.00	$80.56
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	42	41	$19.00	$6.78
99213 Established patient office or other outpatient visit, typically 15 minutes	28	28	$204.00	$54.77

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	587	370	$262.45	$80.87
99213 Established patient office or other outpatient visit, typically 15 minutes	35	34	$173.29	$55.26

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	522	319	$236.00	$83.06
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	36	36	$19.00	$6.98
99213 Established patient office or other outpatient visit, typically 15 minutes	23	23	$161.00	$54.67

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	516	283	$221.12	$66.66
99213 Established patient office or other outpatient visit, typically 15 minutes	24	21	$166.25	$42.25
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	13	13	$23.31	$7.22

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	488	310	$206.00	$64.94
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	215	164	$206.00	$89.36
99213 Established patient office or other outpatient visit, typically 15 minutes	28	28	$168.00	$42.25
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	24	24	$26.00	$7.06
93228 Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional	12	12	$64.00	$21.77
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	12	12	$26.00	$7.07

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	822	483	$206.00	$88.37
J1940 Injection, furosemide, up to 20 mg	101	18	$20.00	$0.93
93000 Routine ekg using at least 12 leads including interpretation and report	71	69	$71.00	$13.79
85610 Blood test, clotting time	67	21	$17.00	$4.75
96374 Injection of drug or substance into a vein for therapy, diagnosis, or prevention	20	18	$124.00	$37.28

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	142	129	$204.39	$58.49
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	93	89	$221.88	$87.38
93000 Routine ekg using at least 12 leads including interpretation and report	44	43	$59.36	$13.71

Medical Specialties & State Licenses

Nurse Practitioner - Acute Care Primary Specialty

NUCC Taxonomy Code: 363LA2100X

State License TX AP117340

Definition to come...

Hospital & Practice Group Affiliations

Christus Trinity Clinic

630 S Fleishel Ave, Tyler, TX 757012041

Phone: 9036065560

Christus Trinity Clinic

1600 Broadway Ave, Gladewater, TX 756475040

Phone: 9033155630

Christus Trinity Clinic

Po Box, Dallas, TX 752846098

Christus Trinity Clinic

707 E Marshall Ave, Longview, TX 756015545

Phone: 9033152833

Christus Trinity Clinic

707 E Marshall Ave, Longview, TX 756015545

Phone: 9035952283

Christus Trinity Clinic

105 Zeid Blvd, Henderson, TX 756526070

Phone: 9035952283

Christus Trinity Clinic

815 S Washington Ave, Marshall, TX 756705369

Phone: 9133154880

Christus Trinity Clinic

620 S Fleishel Ave, Tyler, TX 757012041

Phone: 9036064900

Practice Associates & Co-Workers

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

14 Associated Practitioners

Dr. Stanislav Weiner , MD

Internal Medicine - Clinical Cardiac Electrophysiology

NPI 1003801705

Doctor of Medicine (M.D.)

Lamont Davis , FNP

Nurse Practitioner - Family

NPI 1215271481

Family Nurse Practitioner

Dr. Peter Macander , MD

Internal Medicine - Cardiovascular Disease

NPI 1285613851

Doctor of Medicine (M.D.)

Brandon Bryant , ACNP

Nurse Practitioner - Acute Care

NPI 1306340690

Dr. Shafik Hanna-Moussa , MD

Internal Medicine - Interventional Cardiology

NPI 1306850227

Doctor of Medicine (M.D.)

Dr. John Mcclish , MD

Internal Medicine - Cardiovascular Disease

NPI 1427019249

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active October 23, 2015

NPI status registered as active in NPPES database

📍

Updated Practice Location October 23, 2015

Registered at 703 E MARSHALL AVE, SUITE 5008, LONGVIEW, TX 756015500 (Tel: 9033154880)

📍

Updated Business Mailing Address October 23, 2015

Registered at PO BOX 4207, LONGVIEW, TX 756064207 (Tel: 9033154119)

👤

Provider Name / Credentials Updated October 23, 2015

Recorded as WILLIAM BARKER, ACNP

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) October 23, 2015

Nurse Practitioner (License #AP117340 in TX)

🟢

Initial NPI Registration & Enumeration September 19, 2008

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: 1457501025

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: September 19, 2008

Last Update: October 23, 2015

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 4207

Longview, TX 756064207

Phone: 9033154119

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.