Active NPI 1891798682 Individual Practitioner Male Practitioner

Dr. William Kent Johnson , MD

Surgery • Round Rock, TX

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. William Johnson, MD is a certified Surgery practicing in Round Rock, TX. With approximately 38 years of clinical experience since completing medical education in 1988, Dr. Johnson delivers high-quality medical care to the local community at 511 OAKWOOD BLVD STE 150.

Dr. Johnson maintains professional affiliations with Srinivas Rao Md Pa, Texas Group Pllc and accepts Medicare assignment.

Frequently performed procedures and clinical services include ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers, injection of chemical agent into multiple incompetent veins of leg, ultrasound study of arm or leg veins with compression and maneuvers. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

511 Oakwood Blvd Ste 150

Round Rock, TX 786814068

Telephone 2486292176

Fax 2488564704

Associated Practice Facility / Clinic

🏢 M&y Care, Llc Facility NPI 1962849570

Medicare Profile & Education

Medical School

Other

Graduation Year

1988

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Round Rock, TX

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

38 Yrs +18.5 yrs vs City Avg

City Avg: 19.5 Yrs

State Avg: 25.2 Yrs

Regional Practice Density

15 Specialists

Practicing in Round Rock, TX (2342 Statewide)

Telehealth Adoption Rate

6.7% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

61.9% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Johnson (38 Years) 38 Yrs

Round Rock Specialty Average (19.5 Years) 19.5 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
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	225	130	$300.11	$117.72
36471 Injection of chemical agent into multiple incompetent veins of leg	175	94	$450.89	$104.84
93970 Ultrasound study of arm or leg veins with compression and maneuvers	132	114	$441.30	$184.15
36475 Destruction of insufficient vein of arm or leg, accessed through the skin	126	68	$3634.89	$1064.09
36478 Laser destruction of incompetent vein of arm or leg using imaging guidance	122	80	$2941.03	$1051.48
99213 Established patient office or other outpatient visit, typically 15 minutes	76	70	$160.60	$90.50
36465 Injection of chemical agent into single incompetent vein of leg using ultrasound guidance	74	64	$3090.19	$1366.17
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	36	36	$175.14	$111.87
36479 Laser destruction of incompetent veins of arm or leg using imaging guidance, subsequent	20	17	$715.29	$302.55
36466 Injection of chemical agent into multiple incompetent veins of same leg using ultrasound guidance	18	16	$3162.38	$1318.84
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	12	12	$248.14	$126.89

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	376	151	$311.00	$121.27
36471 Injection of chemical agent into multiple incompetent veins of leg	213	106	$452.00	$103.90
36475 Destruction of insufficient vein of arm or leg, accessed through the skin	212	104	$3803.53	$1144.28
99213 Established patient office or other outpatient visit, typically 15 minutes	202	145	$149.00	$91.33
93970 Ultrasound study of arm or leg veins with compression and maneuvers	138	136	$505.00	$190.20
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	104	104	$158.00	$114.26
36465 Injection of chemical agent into single incompetent vein of leg using ultrasound guidance	95	74	$3214.85	$1608.58
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	43	21	$34.00	$13.99
36478 Laser destruction of incompetent vein of arm or leg using imaging guidance	42	33	$3090.00	$1028.44
36466 Injection of chemical agent into multiple incompetent veins of same leg using ultrasound guidance	18	17	$3306.22	$1447.61
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	13	13	$337.00	$169.02

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	392	147	$311.00	$124.66
36475 Destruction of insufficient vein of arm or leg, accessed through the skin	243	99	$3947.00	$1256.39
36471 Injection of chemical agent into multiple incompetent veins of leg	185	90	$452.00	$113.44
99213 Established patient office or other outpatient visit, typically 15 minutes	143	104	$149.00	$92.23
36465 Injection of chemical agent into single incompetent vein of leg using ultrasound guidance	116	83	$3145.50	$1656.11
93970 Ultrasound study of arm or leg veins with compression and maneuvers	112	112	$505.00	$199.18
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	102	102	$158.00	$115.41
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	31	12	$34.00	$14.76
36466 Injection of chemical agent into multiple incompetent veins of same leg using ultrasound guidance	25	22	$3306.22	$1536.33
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	22	20	$90.00	$58.36

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	343	140	$311.00	$129.44
36475 Destruction of insufficient vein of arm or leg, accessed through the skin	200	89	$3947.00	$1466.25
99213 Established patient office or other outpatient visit, typically 15 minutes	177	127	$149.00	$94.83
93970 Ultrasound study of arm or leg veins with compression and maneuvers	168	168	$503.15	$205.78
36471 Injection of chemical agent into multiple incompetent veins of leg	151	83	$452.00	$120.11
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	138	138	$158.00	$116.54
36465 Injection of chemical agent into single incompetent vein of leg using ultrasound guidance	97	68	$3145.50	$1956.91
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	24	23	$90.00	$58.37
36466 Injection of chemical agent into multiple incompetent veins of same leg using ultrasound guidance	13	11	$3306.22	$1703.50

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	139	71	$346.41	$124.90
36475 Destruction of insufficient vein of arm or leg, accessed through the skin	91	41	$3996.78	$1464.54
99213 Established patient office or other outpatient visit, typically 15 minutes	76	52	$238.21	$75.52
36471 Injection of chemical agent into multiple incompetent veins of leg	72	39	$452.00	$112.51
93970 Ultrasound study of arm or leg veins with compression and maneuvers	59	55	$545.68	$192.65
36465 Injection of chemical agent into single incompetent vein of leg using ultrasound guidance	39	29	$3758.08	$1781.31
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	37	37	$157.57	$109.60
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	12	12	$418.00	$150.97

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	244	50	$375.00	$71.07
J1650 Injection, enoxaparin sodium, 10 mg	193	12	$30.00	$0.79
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	192	46	$525.00	$113.37
36478 Laser destruction of incompetent vein of arm or leg using imaging guidance	142	40	$5992.96	$1059.81
93970 Ultrasound study of arm or leg veins with compression and maneuvers	117	69	$625.00	$183.50
93970 Ultrasound study of arm or leg veins with compression and maneuvers	77	74	$153.00	$34.84
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	65	64	$394.14	$156.75
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	56	55	$115.00	$22.99
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	49	12	$45.00	$15.31
36465 Injection of chemical agent into single incompetent vein of leg using ultrasound guidance	43	27	$5800.00	$2080.22
93880 Ultrasound of both sides of head and neck blood flow	40	40	$150.00	$40.95
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	18	16	$195.00	$104.77

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	129	29	$345.54	$70.23
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	110	30	$485.00	$115.04
93970 Ultrasound study of arm or leg veins with compression and maneuvers	106	54	$566.51	$187.54
36478 Laser destruction of incompetent vein of arm or leg using imaging guidance	106	28	$5350.94	$1140.42
93880 Ultrasound of both sides of head and neck blood flow	57	57	$128.18	$40.90
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	56	54	$95.05	$22.97
93970 Ultrasound study of arm or leg veins with compression and maneuvers	56	52	$141.11	$35.17
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	53	53	$384.62	$158.82
36471 Injection of chemical agent into multiple incompetent veins of leg	36	20	$575.69	$254.03
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	35	19	$380.00	$57.76
93925 Ultrasound of leg arteries or artery grafts	30	30	$125.83	$40.57

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	75	74	$53.00	$22.55
93970 Ultrasound study of arm or leg veins with compression and maneuvers	68	65	$81.00	$35.41
93880 Ultrasound of both sides of head and neck blood flow	67	67	$72.00	$40.22
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	58	58	$621.00	$201.90
36415 Insertion of needle into vein for collection of blood sample	42	37	$28.86	$2.94
80053 Blood test, comprehensive group of blood chemicals	37	34	$109.73	$13.86
81001 Manual urinalysis test with examination using microscope, automated	36	33	$43.89	$4.26
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	36	33	$73.83	$10.45
93925 Ultrasound of leg arteries or artery grafts	31	31	$68.00	$40.09
71020 X-ray of chest, 2 views, front and side	27	27	$82.00	$16.05
99213 Established patient office or other outpatient visit, typically 15 minutes	24	19	$228.00	$72.04
85730 Coagulation assessment blood test, plasma or whole blood	23	22	$58.74	$8.08
85610 Blood test, clotting time	23	22	$46.83	$5.28
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	21	21	$493.00	$160.53
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	18	17	$437.00	$140.69
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	17	17	$62.82	$19.35
93000 Routine ekg using at least 12 leads including interpretation and report	12	12	$121.58	$16.20
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	12	11	$337.33	$105.27

Medical Specialties & State Licenses

CMS Verified: 2025-09-18

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License TX H6320

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Radiology - Diagnostic Radiology

NUCC Taxonomy Code: 2085R0202X

State License TX H6320

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

096817404 (TX)

Medicaid State Provider ID

P000662G2 (TX)

Medicaid State Provider ID

096817403 (TX)

Hospital & Practice Group Affiliations

Srinivas Rao Md Pa

9303 Pinecroft Dr, The Woodlands, TX 773803183

Phone: 8009916117

Srinivas Rao Md Pa

635 Medical Pkwy, Brenham, TX 778335412

Phone: 8009916117

Texas Group Pllc

16840 Buccaneer Ln, Houston, TX 770582563

Phone: 8666072308

Srinivas Rao Md Pa

5585 Weslayan St, Houston, TX 770051941

Phone: 8009916117

Career & Practice History Timeline

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

22 Historical Events

📍

Updated Practice Location September 18, 2025

Registered at 511 OAKWOOD BLVD STE 150, ROUND ROCK, TX 786814068 (Tel: 2486292176)

📍

Updated Business Mailing Address September 18, 2025

Registered at 7125 ORCHARD LAKE RD STE 210, WEST BLOOMFIELD, MI 483223618 (Tel: 2486292176)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) September 18, 2025

Surgery (License #H6320 in TX)

📍

Updated Practice Location June 17, 2020

Registered at 11221 KATY FWY STE 115, HOUSTON, TX 770792105 (Tel: 2818881464)

📍

Updated Business Mailing Address June 17, 2020

Registered at 11221 KATY FWY STE 115, HOUSTON, TX 770792105 (Tel: 2818881464)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) May 09, 2018

Radiology (License #H6320 in TX)

✅

NPI Profile Active February 22, 2018

NPI status registered as active in NPPES database

📍

Updated Practice Location February 22, 2018

Registered at 111 VISION PARK BLVD STE 250, SHENANDOAH, TX 773843004 (Tel: 8884243882)

📍

Updated Business Mailing Address February 22, 2018

Registered at 111 VISION PARK BLVD STE 250, SHENANDOAH, TX 773843004 (Tel: 8884243882)

👤

Provider Name / Credentials Updated February 22, 2018

Recorded as WILLIAM JOHNSON, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) February 22, 2018

Surgery (License #H6320 in TX)

✅

NPI Profile Active June 29, 2017

NPI status registered as active in NPPES database

📍

Updated Practice Location June 29, 2017

Registered at 2255 E MOSSY OAKS RD STE 500, SPRING, TX 773891813 (Tel: (281) 440-5300)

📍

Updated Business Mailing Address June 29, 2017

Registered at 2255 E MOSSY OAKS RD STE 500, SPRING, TX 773891813 (Tel: (281) 440-5300)

👤

Provider Name / Credentials Updated June 29, 2017

Recorded as WILLIAM JOHNSON, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 29, 2017

Surgery (License #H6320 in TX)

✅

NPI Profile Active October 19, 2016

NPI status registered as active in NPPES database

📍

Updated Practice Location October 19, 2016

Registered at 17203 RED OAK DR, STE 103, HOUSTON, TX 770902640 (Tel: 2818932288)

📍

Updated Business Mailing Address October 19, 2016

Registered at 17203 RED OAK DR, STE 103, HOUSTON, TX 770902640 (Tel: 2818932288)

👤

Provider Name / Credentials Updated October 19, 2016

Recorded as WILLIAM JOHNSON, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) October 19, 2016

Specialist (License #H6320 in TX)

🟢

Initial NPI Registration & Enumeration May 24, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1891798682

Entity Type:

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

Enumeration Date: May 24, 2005

Last Update: September 18, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

7125 Orchard Lake Rd Ste 210

West Bloomfield, MI 483223618

Phone: 2486292176

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.