Dr. Clayton Cavanaugh Davis , DO
Internal Medicine • Norton, VA
100 15th St Nw
Norton, VA 242731616
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. Clayton Davis is listed in NPPES under Internal Medicine.
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NPI assigned on June 30, 2017; this date does not establish years in practice.
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Published CMS data list 36 Medicare Part D prescriptions, including refills, in 2021.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2021. Published rows only; this is not a quality measure.
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Published Part D records, 2021:
- Atorvastatin Calcium — 23 prescription fills, including refills.
- Metformin Hcl — 13 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2021. 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 D prescriptions went from 13 in 2018 to 36 in 2021.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2018–2021.
Practice Location & Contact Primary Location
100 15th St Nw
Norton, VA 242731616
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
76 standardized 30-day fills in 2021
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
$282 in 2021
The total cost of these prescriptions in 2021, 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, 2021.
Open Payments general payments, program year 2019
All general payments: $41.64 across 3 records.
By nature of payment
- Food and Beverage: $41.64 across 3 records.
Reporting-company totals
- GlaxoSmithKline, LLC.: $22.72 across 2 records.
- ZOLL Services LLC (A/K/A ZOLL LifeCor Corp): $18.92 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 2019 (published June 30, 2026).
NPI first issued
2017
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, CMS release of October 2, 2026; 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, CMS release of October 2, 2026.
Compared with the same specialty in Norton and Virginia
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Davis are from 2021.
52 active clinicians are listed under Internal Medicine with a practice address in Norton, VA (3,626 in Virginia).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Norton
1.9% of these 52 clinicians have the CMS telehealth indicator.
46.2% of these 52 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 D prescriptions
Medicare Part D prescriptions went from 13 in 2018 to 36 in 2021.
- 2018: 13
- 2019: 11
- 2020: 19
- 2021: 36
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30-day fills
30-day fills went from 13 in 2018 to 76 in 2021.
- 2018: 13
- 2019: 11
- 2020: 31
- 2021: 76
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Part D drug cost
Part D drug cost went from $265 in 2018 to $282 in 2021.
- 2018: $265
- 2019: $61
- 2020: $171
- 2021: $282
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2019 only.
Sources: CMS Medicare Part D Prescribers (2021), CMS Open Payments (2019), CMS Doctors and Clinicians, CMS release of October 2, 2026, 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 2019 (payments made January 1 – December 31, 2019): fewer than 11 records totaling $41.64.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) |
Food and Beverage
Cash or cash equivalent
|
LifeVest | General | $18.92 |
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
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TRELEGY ELLIPTA | General | $11.85 |
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
|
TRELEGY ELLIPTA | General | $10.87 |
Source: CMS Open Payments, program year 2019, released June 30, 2026.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2021.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 23 | 1,650 | $215.50 | — |
| Metformin Hcl | Metformin Hcl | 13 | 630 | $66.72 | — |
Source: CMS Part D by Provider and Drug, 2021; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC 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.
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
Doctor of Medicine (M.D.)
Internal Medicine
Internal Medicine
Doctor of Osteopathic Medicine (D.O.)
Internal Medicine
Doctor of Osteopathic Medicine (D.O.)
Nurse Anesthetist, Certified Registered
Certified Registered Nurse Anesthetist
Internal Medicine
Doctor of Osteopathic Medicine (D.O.)
Career & Practice History
NPI enumerated June 30, 2017.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from July 2017 to November 2026.
NPI Administrative Meta
Other Internal Medicine Providers in Norton
- Dr. Jody Bentley, DO
- Dr. Maurice Nida, DO
- Dr. Michael Lilly, MD
- Dr. Parisha Masud, MD
- Dr. Ronald Sheppard, DO
- Dr. Paul Rajan, MD
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Directory navigation, in NPI number order.
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Mailing Address
Po Box 1535
Wise, VA 242931535
Phone: 2764391000