Dr. Stuart Carpenter Mckennon , MD
Internal Medicine โข Marble Falls, TX
810 W Highway 71
Marble Falls, TX 78654
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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Dr. Stuart Mckennon is listed in NPPES under Internal Medicine.
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NPI assigned on June 29, 2006; this date does not establish years in practice.
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Published CMS data list 674 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:
- 99233 โ Subsequent hospital care with moderate levelof medical decision making: 430 service units.
- 99234 โ Initial hospital care with same-day admission and discharge with straightforward or low level of medical decision making, per day: 163 service units.
- 99223 โ Initial hospital care with moderate level of medical decision making: 81 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 the full table ยท Guide: How to read Medicare Part B data
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Published CMS data list 422 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Prednisone โ 40 prescription fills, including refills.
- Potassium Chloride โ 38 prescription fills, including refills.
- Atorvastatin Calcium โ 36 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 19 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 70% of clinicians listed under Internal Medicine in Marble Falls, TX (2024, 12 clinicians with data). Median for this group: 407. Middle half: 271 to 688.
Close to the middle for Medicare Part B services among clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: 645. Middle half: 277 to 1,322.
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 915 in 2020 to 674 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
810 W Highway 71
Marble Falls, TX 78654
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Austin, TX. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 1 group name: Scott And White Clinic. 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
1980
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
270 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 $76,897 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 $59,716 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
557 standardized 30-day fills in 2024
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
$15,622 in 2024
The total cost of these prescriptions in 2024, 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, 2024.
Open Payments general payments, program year 2023
All general payments: $77.36 across 2 records.
By nature of payment
- Food and Beverage: $77.36 across 2 records.
Reporting-company totals
- Janssen Pharmaceuticals, Inc: $77.36 across 2 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2023 (published June 30, 2026).
Years since graduation
46 years (graduated 1980)
CMS Doctors and Clinicians data list 1980 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
2006
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. Mckennon 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. Mckennon 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 Marble Falls and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 70% of clinicians listed under Internal Medicine in Marble Falls, TX (2024, 12 clinicians with data). Median for this group: 407. Middle half: 271 to 688.
Close to the middle for clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: 645. Middle half: 277 to 1,322.
Medicare-allowed amount
A higher Medicare-allowed amount than 80% of clinicians listed under Internal Medicine in Marble Falls, TX (2024, 12 clinicians with data). Median for this group: $49,558. Middle half: $26,037 to $72,793.
Close to the middle for clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: $61,221. Middle half: $27,420 to $115,826.
Paid by Medicare
A higher Medicare payment amount than 80% of clinicians listed under Internal Medicine in Marble Falls, TX (2024, 12 clinicians with data). Median for this group: $39,052. Middle half: $20,642 to $56,324.
Close to the middle for clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: $47,501. Middle half: $20,446 to $90,051.
Medicare Part D prescriptions
Close to the middle for clinicians listed under Internal Medicine in Marble Falls, TX (2024, 11 clinicians with data). Median for this group: 422. Middle half: 61 to 849.
Close to the middle for clinicians listed under Internal Medicine in Texas (2024, 5,674 clinicians with data). Median for this group: 828. Middle half: 121 to 4,824.
Part D drug cost
Close to the middle for clinicians listed under Internal Medicine in Marble Falls, TX (2024, 11 clinicians with data). Median for this group: $15,622. Middle half: $710 to $50,865.
A lower Part D drug cost than 60% of clinicians listed under Internal Medicine in Texas (2024, 5,674 clinicians with data). Median for this group: $64,859. Middle half: $4,211 to $436,775.
15 active clinicians are listed under Internal Medicine with a practice address in Marble Falls, TX (9,191 in Texas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Marble Falls
6.7% of these 15 clinicians have the CMS telehealth indicator.
73.3% of these 15 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 decreased 26% from 915 in 2020 to 674 in 2024.
- 2020: 915
- 2021: 746
- 2022: 915
- 2023: 699
- 2024: 674
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Medicare-allowed amount
Medicare-allowed amount decreased 24% from $100,535 in 2020 to $76,897 in 2024.
- 2020: $100,535
- 2021: $80,407
- 2022: $96,361
- 2023: $81,247
- 2024: $76,897
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Paid by Medicare
Paid by Medicare decreased 23% from $77,833 in 2020 to $59,716 in 2024.
- 2020: $77,833
- 2021: $68,128
- 2022: $75,924
- 2023: $64,072
- 2024: $59,716
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Medicare Part D prescriptions
Medicare Part D prescriptions varied from year to year: 386 in 2020 and 422 in 2024.
- 2020: 386
- 2021: 363
- 2022: 417
- 2023: 296
- 2024: 422
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30-day fills
30-day fills increased 17% from 475 in 2020 to 557 in 2024.
- 2020: 475
- 2021: 451
- 2022: 513
- 2023: 367
- 2024: 557
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Part D drug cost
Part D drug cost increased 287% from $4,036 in 2020 to $15,622 in 2024.
- 2020: $4,036
- 2021: $11,625
- 2022: $9,226
- 2023: $2,252
- 2024: $15,622
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2023 only.
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2023), 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 2023 (payments made January 1 โ December 31, 2023): fewer than 11 records totaling $77.36.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
|
XARELTO | General | $41.44 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
|
XARELTO | General | $35.92 |
Source: CMS Open Payments, program year 2023, 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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99233
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
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430 | 204 | $201.00 | $112.66 |
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99234
Initial hospital care with same-day admission and discharge with straightforward or low level of medical decision making, per day, if using time, at least 45 minutes
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163 | 155 | $260.00 | $92.65 |
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99223
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
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81 | 79 | $392.00 | $164.83 |
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 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Prednisone | Prednisone | 40 | 524 | $137.98 | 36 |
| Potassium Chloride | Potassium Chloride | 38 | 1,045 | $384.59 | 24 |
| Atorvastatin Calcium | Atorvastatin Calcium | 36 | 2,910 | $320.09 | 23 |
| Pantoprazole Sodium | Pantoprazole Sodium | 35 | 1,138 | $169.50 | 29 |
| Metoprolol Succinate | Metoprolol Succinate | 28 | 860 | $267.47 | 20 |
| Furosemide | Furosemide | 26 | 754 | $58.97 | 19 |
| Torsemide | Torsemide | 26 | 863 | $423.96 | 20 |
| Eliquis | Apixaban | 23 | 634 | $12,773.51 | 16 |
| Lisinopril | Lisinopril | 21 | 1,650 | $171.08 | 18 |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 21 | 160 | $201.07 | 21 |
| Amlodipine Besylate | Amlodipine Besylate | 18 | 540 | $51.25 | 16 |
| Spironolactone | Spironolactone | 18 | 600 | $74.00 | 14 |
| Doxycycline Hyclate | Doxycycline Hyclate | 17 | 91 | $71.50 | 17 |
| Levofloxacin | Levofloxacin | 16 | 102 | $55.27 | 16 |
| Ciprofloxacin Hcl | Ciprofloxacin Hcl | 14 | 97 | $80.10 | 13 |
| Cefdinir | Cefdinir | 12 | 69 | $130.70 | 11 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 11 | 39 | $58.86 | 11 |
| Carvedilol | Carvedilol | 11 | 334 | $31.47 | โ |
| Losartan Potassium | Losartan Potassium | 11 | 960 | $160.54 | โ |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2022-06-14NUCC Taxonomy Code: 207R00000X
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.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20100526000468
TX
1850420019
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
Scott And White Clinic
800 W Hwy 71, Marble Falls, TX 786548602
Phone: 8302017100
Scott And White Clinic
810 W Hwy 71, Marble Falls, TX 786548602
Phone: 8302017100
Scott And White Clinic
1605 S 31st St, Temple, TX 765080001
Phone: 2542150100
Scott And White Clinic
2401 S 31st St, Temple, TX 765080001
Phone: 2547242459
Scott And White Clinic
2401 S 31st St Bldg, Temple, TX 765080001
Phone: 2547242663
Scott And White Clinic
1300 E Polk St, Burnet, TX 786112136
Phone: 5127156400
Scott And White Clinic
810 W U Ave, Temple, TX 765080001
Phone: 2547242585
Secondary Practice Locations
7000 North Mopac, Suite #420
Austin, TX 78731
Phone: 5124820045
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine - Gastroenterology
Doctor of Medicine (M.D.)
Obstetrics & Gynecology
Doctor of Medicine (M.D.)
Nurse Practitioner - Acute Care
Adult-Gerontology Acute Care Nurse Practitioner
Obstetrics & Gynecology
Doctor of Medicine (M.D.)
Orthopaedic Surgery
Doctor of Medicine (M.D.)
Nurse Anesthetist, Certified Registered
Certified Registered Nurse Anesthetist
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 810 W HIGHWAY 71, MARBLE FALLS, TX 78654 (Tel: 8302017100)
Registered at PO BOX 844658, DALLAS, TX 752844658
NPI status registered as active in NPPES database
Registered at 7000 NORTH MOPAC, SUITE #420, AUSTIN, TX 78731 (Tel: 5124820045)
Registered at 7000 NORTH MOPAC, SUITE #420, AUSTIN, TX 78731 (Tel: 5124820045)
Recorded as STUART MCKENNON, M.D.
Internal Medicine (license number reported to NPPES: TX F6933)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Marble Falls
- Deep Patel
- Dr. Sixian Welch, DO
- Dr. Simran Sedani, MD
- Dr. Samreena Memon, MD
- Dr. Clayton Mccuan, DO
- Dr. Ronald Johns, MD
Mailing Address
Po Box 844658
Dallas, TX 752844658