Dr. William Kent Johnson , MD
Surgery โข Round Rock, TX
511 Oakwood Blvd Ste 150
Round Rock, TX 786814068
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on May 24, 2005; this date does not establish years in practice.
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Published CMS data list 1,016 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 93971 โ Ultrasound study of one arm or leg veins with compression and maneuvers: 225 service units.
- 36471 โ Injection of chemical agent into multiple incompetent veins of leg: 175 service units.
- 93970 โ Ultrasound study of arm or leg veins with compression and maneuvers: 132 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 11 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 16 Medicare Part D prescriptions, including refills, in 2023.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2023. Published rows only; this is not a quality measure.
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Published Part D records, 2023:
- Enoxaparin Sodium โ 16 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2023. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 95% of clinicians listed under Surgery in Round Rock, TX (2024, 11 clinicians with data). Median for this group: 135. Middle half: 87 to 292.
More Medicare Part B services than 95% of clinicians listed under Surgery in Texas (2024, 1,113 clinicians with data). Median for this group: 148. Middle half: 72 to 277.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 525 in 2020 to 1,016 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
511 Oakwood Blvd Ste 150
Round Rock, TX 786814068
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 2 distinct group names: Srinivas Rao Md Pa; Texas Group Pllc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
1988
What Public CMS Data Show
Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
238 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $474,812 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Paid by Medicare
About $375,482 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
30-day fills
16 standardized 30-day fills in 2023
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$225 in 2023
The total cost of these prescriptions in 2023, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2023.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $51.36 in 2024
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2024.
Years since graduation
38 years (graduated 1988)
CMS Doctors and Clinicians data list 1988 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2005
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Johnson has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Johnson as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Round Rock and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 95% of clinicians listed under Surgery in Round Rock, TX (2024, 11 clinicians with data). Median for this group: 135. Middle half: 87 to 292.
More Medicare Part B services than 95% of clinicians listed under Surgery in Texas (2024, 1,113 clinicians with data). Median for this group: 148. Middle half: 72 to 277.
Medicare-allowed amount
A higher Medicare-allowed amount than 95% of clinicians listed under Surgery in Round Rock, TX (2024, 11 clinicians with data). Median for this group: $17,148. Middle half: $13,488 to $46,013.
A higher Medicare-allowed amount than 95% of clinicians listed under Surgery in Texas (2024, 1,113 clinicians with data). Median for this group: $20,825. Middle half: $8,873 to $41,247.
Paid by Medicare
A higher Medicare payment amount than 95% of clinicians listed under Surgery in Round Rock, TX (2024, 11 clinicians with data). Median for this group: $13,599. Middle half: $10,156 to $36,152.
A higher Medicare payment amount than 95% of clinicians listed under Surgery in Texas (2024, 1,113 clinicians with data). Median for this group: $15,568. Middle half: $6,700 to $31,964.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Johnson are from 2023.
14 active clinicians are listed under Surgery with a practice address in Round Rock, TX (2,193 in Texas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Round Rock
7.1% of these 14 clinicians have the CMS telehealth indicator.
85.7% of these 14 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 94% from 525 in 2020 to 1,016 in 2024.
- 2020: 525
- 2021: 1,311
- 2022: 1,371
- 2023: 1,456
- 2024: 1,016
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Medicare-allowed amount
Medicare-allowed amount increased 89% from $251,179 in 2020 to $474,812 in 2024.
- 2020: $251,179
- 2021: $636,590
- 2022: $654,683
- 2023: $591,760
- 2024: $474,812
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Paid by Medicare
Paid by Medicare increased 89% from $198,270 in 2020 to $375,482 in 2024.
- 2020: $198,270
- 2021: $504,025
- 2022: $516,236
- 2023: $465,616
- 2024: $375,482
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 86% from 113 in 2016 to 16 in 2023.
- 2016: 113
- 2017: 78
- 2021: 28
- 2022: 33
- 2023: 16
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30-day fills
30-day fills decreased 86% from 113 in 2016 to 16 in 2023.
- 2016: 113
- 2017: 78
- 2021: 28
- 2022: 33
- 2023: 16
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Part D drug cost
Part D drug cost went from $936 in 2016 to $225 in 2023.
- 2016: $936
- 2017: $445
- 2021: $99
- 2022: $548
- 2023: $225
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $29.20 in 2020 to $51.36 in 2024.
- 2020: $29.20
- 2021: $235.86
- 2022: $578.59
- 2023: $280.05
- 2024: $51.36
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2023), CMS Open Payments (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2024 (payments made January 1 โ December 31, 2024): fewer than 11 records totaling $51.36.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Boston Scientific Corporation |
Food and Beverage
In-kind items and services
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Varithena Administration Pack | General | $51.36 |
Source: CMS Open Payments, program year 2024, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ by Provider and Service data, 2017โ2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
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93971
Ultrasound study of one arm or leg veins with compression and maneuvers
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225 | 130 | $300.11 | $117.72 |
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36471
Injection of chemical agent into multiple incompetent veins of leg
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175 | 94 | $450.89 | $104.84 |
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93970
Ultrasound study of arm or leg veins with compression and maneuvers
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132 | 114 | $441.30 | $184.15 |
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36475
Destruction of first incompetent vein of arm or leg using radiofrequency and imaging guidance
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126 | 68 | $3634.89 | $1064.09 |
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36478
Laser destruction of incompetent vein of arm or leg using imaging guidance
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122 | 80 | $2941.03 | $1051.48 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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76 | 70 | $160.60 | $90.50 |
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36465
Injection of chemical agent into single incompetent vein of leg using ultrasound guidance
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74 | 64 | $3090.19 | $1366.17 |
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99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
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36 | 36 | $175.14 | $111.87 |
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36479
Laser destruction of incompetent veins of arm or leg using imaging guidance, subsequent
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20 | 17 | $715.29 | $302.55 |
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36466
Injection of chemical agent into multiple incompetent veins of same leg using ultrasound guidance
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18 | 16 | $3162.38 | $1318.84 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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12 | 12 | $248.14 | $126.89 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2023.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Enoxaparin Sodium | Enoxaparin Sodium | 16 | 34 | $224.79 | 15 |
Source: CMS Part D by Provider and Drug, 2023; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-09-18NUCC Taxonomy Code: 208600000X
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.
NUCC Taxonomy Code: 2085R0202X
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - GENERAL SURGERY
I20080317000390
TX
9638175946
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
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
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 511 OAKWOOD BLVD STE 150, ROUND ROCK, TX 786814068 (Tel: 2486292176)
Registered at 7125 ORCHARD LAKE RD STE 210, WEST BLOOMFIELD, MI 483223618 (Tel: 2486292176)
Surgery (license number reported to NPPES: TX H6320)
Registered at 11221 KATY FWY STE 115, HOUSTON, TX 770792105 (Tel: 2818881464)
Registered at 11221 KATY FWY STE 115, HOUSTON, TX 770792105 (Tel: 2818881464)
Radiology (license number reported to NPPES: TX H6320)
NPI status registered as active in NPPES database
Registered at 111 VISION PARK BLVD STE 250, SHENANDOAH, TX 773843004 (Tel: 8884243882)
Registered at 111 VISION PARK BLVD STE 250, SHENANDOAH, TX 773843004 (Tel: 8884243882)
Recorded as WILLIAM JOHNSON, M.D.
Surgery (license number reported to NPPES: TX H6320)
NPI status registered as active in NPPES database
Registered at 2255 E MOSSY OAKS RD STE 500, SPRING, TX 773891813 (Tel: (281) 440-5300)
Registered at 2255 E MOSSY OAKS RD STE 500, SPRING, TX 773891813 (Tel: (281) 440-5300)
Recorded as WILLIAM JOHNSON, M.D.
Surgery (license number reported to NPPES: TX H6320)
NPI status registered as active in NPPES database
Registered at 17203 RED OAK DR, STE 103, HOUSTON, TX 770902640 (Tel: 2818932288)
Registered at 17203 RED OAK DR, STE 103, HOUSTON, TX 770902640 (Tel: 2818932288)
Recorded as WILLIAM JOHNSON, M.D.
Specialist (license number reported to NPPES: TX H6320)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Surgery Specialists in Round Rock
- Dr. Bao Nguyen, MD
- Dr. Colin Doyle, MD
- Dr. John Eckford, MD
- Dr. Robin Watson, MD
- Dr. Caitlin Marsh, DO
- Dr. Mario Longoria, MD
Mailing Address
7125 Orchard Lake Rd Ste 210
West Bloomfield, MI 483223618
Phone: 2486292176