Dr. Katherine Root , MD
Internal Medicine • Tyler, TX
1000 E 5th St, Suite 400
Tyler, TX 757013346
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. Katherine Root is listed in NPPES under Internal Medicine.
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NPI assigned on May 4, 2010; this date does not establish years in practice.
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Published CMS data list 345 Original Medicare Part B services in 2021.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2021. Published rows only; this is not a quality measure.
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Published Part B service records, 2021:
- 99214 — Established patient outpatient office visit: 88 service units.
- 85025 — Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count: 64 service units.
- 81000 — Manual urinalysis test with examination using microscope, non-automated: 58 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2021. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2020 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2021). CPT notice
See all 6 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 17 Medicare Part D prescriptions, including refills, in 2023.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023. Published rows only; this is not a quality measure.
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Published Part D records, 2023:
- Lisinopril — 17 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – 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 · Guide: How to read Medicare Part D prescriber data
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Medicare Part B services went from 2,464 in 2017 to 345 in 2021.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2017–2021.
Practice Location & Contact Primary Location
1000 E 5th St
Suite 400
Tyler, TX 757013346
NPPES lists 1 additional practice-address record in Tyler, TX. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $22,413 in 2021
The total amount Medicare approved for these services in 2021. 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 – by Provider and Service, 2021.
Paid by Medicare
About $16,115 in 2021
The part of the Medicare-allowed amount that Medicare itself paid in 2021, 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 – by Provider and Service, 2021.
30-day fills
31 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
$61 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 – by Provider and Drug, 2023.
Open Payments general payments, program year 2024
All general payments: $212.62 across 3 records.
By nature of payment
- Food and Beverage: $212.62 across 3 records.
Reporting-company totals
- Genentech, Inc.: $140.25 across 1 record.
- Ethicon Inc.: $54.56 across 1 record.
- ABBVIE INC.: $17.81 across 1 record.
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 2024 (published June 30, 2026).
NPI first issued
2010
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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, “Does your provider accept Medicare as full payment?”
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. Root 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. Root 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 Tyler and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Root are from 2021.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Root are from 2023.
146 active clinicians are listed under Internal Medicine with a practice address in Tyler, TX (9,191 in Texas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Tyler
9.6% of these 146 clinicians have the CMS telehealth indicator.
67.8% of these 146 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 86% from 2,464 in 2017 to 345 in 2021.
- 2017: 2,464
- 2018: 2,358
- 2019: 1,506
- 2020: 1,275
- 2021: 345
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Medicare-allowed amount
Medicare-allowed amount decreased 79% from $108,908 in 2017 to $22,413 in 2021.
- 2017: $108,908
- 2018: $90,546
- 2019: $84,826
- 2020: $61,997
- 2021: $22,413
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Paid by Medicare
Paid by Medicare decreased 81% from $87,023 in 2017 to $16,115 in 2021.
- 2017: $87,023
- 2018: $75,622
- 2019: $68,998
- 2020: $50,981
- 2021: $16,115
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 100% from 7,645 in 2019 to 17 in 2023.
- 2019: 7,645
- 2020: 8,250
- 2021: 4,545
- 2022: 52
- 2023: 17
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30-day fills
30-day fills decreased 100% from 14,164 in 2019 to 31 in 2023.
- 2019: 14,164
- 2020: 15,923
- 2021: 9,560
- 2022: 103
- 2023: 31
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Part D drug cost
Part D drug cost decreased 100% from $264,088 in 2019 to $61 in 2023.
- 2019: $264,088
- 2020: $356,311
- 2021: $159,999
- 2022: $316
- 2023: $61
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $454.14 in 2019 to $212.62 in 2024.
- 2019: $454.14
- 2021: $28.60
- 2022: $76.00
- 2023: $92.18
- 2024: $212.62
Sources: CMS Medicare Physician & Other Practitioners (2021), 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 · 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 – December 31, 2024): fewer than 11 records totaling $212.62.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Genentech, Inc. |
Food and Beverage
In-kind items and services
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— | General | $140.25 |
| Ethicon Inc. |
Food and Beverage
In-kind items and services
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Enseal | General | $54.56 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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QULIPTA | General | $17.81 |
Source: CMS Open Payments, program year 2024, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2020 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 – by Provider and Service data, 2017–2021; 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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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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88 | 75 | $237.73 | $126.80 |
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85025
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count
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64 | 57 | $40.00 | $7.77 |
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81000
Manual urinalysis test with examination using microscope, non-automated
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58 | 54 | $25.00 | $4.02 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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51 | 51 | $154.00 | $129.51 |
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83036
Hemoglobin a1c level
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45 | 41 | $50.00 | $9.71 |
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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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39 | 35 | $159.23 | $89.29 |
Source: CMS Part B by Provider and Service, 2021; 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 |
|---|---|---|---|---|---|
| Lisinopril | Lisinopril | 17 | 853 | $61.45 | — |
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: 2026-02-02NUCC 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.
NUCC Taxonomy Code: 207RA0000X
An internist who specializes in adolescent medicine is a multi-disciplinary healthcare specialist trained in the unique physical, psychological and social characteristics of adolescents, their healthcare problems and needs.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20130916000064
TX
2567606445
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Secondary Practice Locations
2231 W Gentry Pkwy
Tyler, TX 757022809
Phone: 9035359041
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Family Medicine
Doctor of Medicine (M.D.)
Family Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Family Nurse Practitioner (Certified)
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Internal Medicine (license number reported to NPPES: TX P4701)
Internal Medicine (license number reported to NPPES: TX P4701)
NPI status registered as active in NPPES database
Registered at 1000 E 5TH ST, SUITE 400, TYLER, TX 757013346 (Tel: 9035963500)
Registered at 1000 E 5TH ST, SUITE 400, TYLER, TX 757013346 (Tel: 9035963500)
Recorded as KATHERINE ROOT, MD
Specialist (license number reported to NPPES: TX P4701)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Tyler
- Alejandro De Los Santos
- Dr. James Stanford, MD
- Dr. Mestawet Teka, MD
- Dr. Denise Sherman, MD
- Dr. Debasish Dasgupta, MD
- Dr. Michael Gorby, MD
Mailing Address
1000 E 5th St, Suite 400
Tyler, TX 757013346
Phone: 9035963500