2026 NPPES data Student in an Organized Health Care Education/Training Program NPI 1972185890 MD
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Clayton Davis, MD

Student in an Organized Health Care Education/Training Program in Saint Louis, Missouri. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 331,761 in Student in an Organized Health Care Education/Training Program, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
538
Medicare Part D claims · 95 beneficiaries · Student in an Organized Health Care Education/Training Program avg: 459
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Clayton Davis, MD filed 538 Medicare Part D claims in 2023 as a Student in an Organized Health Care Education/Training Program in Saint Louis, Missouri.

538
Part D claims, 2023

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.

Clayton Davis, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023, across all CMS prescribers nationally

538 Top 34% higher than 66% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about Clayton Davis, MD?

Quality data not reported

NPI registry status

Active

Issued 04/21/2021

NPI 1972185890

Primary specialty

Student in an Organized Health Care Education/Training Program

High-volume

331,761 US NPIs in this specialty

Medicare Part D claims

538 17% vs specialty avg

2023 prescription claims

Specialty avg: 459

Specialty distribution in Missouri

How Student in an Organized Health Care Education/Training Program compares to other specialties among Missouri providers

Missouri providers

Largest specialties in Missouri (% of in-state providers)

Pharmacist - 4.8%Pharmacist4.8%Professional Counselor - 4.8%Professional Counselor4.8%Speech-Language Pathologist - 4.5%Speech-Language Pathologist4.5%Clinical Social Worker - 4.5%Clinical Social Worker4.5%Family Nurse Practitioner - 4.3%Family Nurse Practitioner4.3%Physical Therapist - 4%Physical Therapist4%Student in an Organized Health Care Education/Training Program - 3.7%Student in an Organized Health Care Education/Training Program3.7%
Largest specialties in Missouri (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Student in an Organized Health Care Education/Training Program. Verify directly:

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Clayton Davis, MD appears in the CMS NPPES registry as a Student in an Organized Health Care Education/Training Program provider holding MD credentials at 1 BARNES JEWISH HOSPITAL PLZ, Saint Louis, MO, 63110, with a listed phone of (314) 362-8065. NPI 1972185890 was issued on 04/21/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Davis most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 538 prescription claims written by this provider, covering 95 Medicare beneficiaries and totaling roughly $60K in drug spend, with an opioid prescribing rate of 6.1%. These figures capture only Medicare Part D, commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Student in an Organized Health Care Education/Training Program is a high-volume specialty nationwide, with 331,761 enrolled providers across 55 states and an average of 459 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1 BARNES JEWISH HOSPITAL PLZ
Saint Louis, MO 63110

Provider Details

NPI 1972185890
Specialty Student in an Organized Health Care Education/Training Program
Credentials MD
Gender Male
NPI Issued 04/21/2021

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

538
Total Claims
$60K
Total Drug Cost
95
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
858
Total Day Supply
24,570
Generic Drug Cost
$9K
Opioid Claims
33 (6.1% rate)
Antibiotic Claims
14

Patient Demographics

Average Patient Age
65.0 years
Avg HCC Risk Score
2.54
Gender Split
66% female / 34% male
Age Distribution
<65: 43, 65-74: 34, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Clayton Davis, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Pantoprazole Sodium
27
Atorvastatin Calcium
25
Albuterol Sulfate Hfa
Albuterol Sulfate
23
Amlodipine Besylate
23
Carvedilol
19
Fluticasone Propionate
17
Furosemide
15
Gabapentin
15
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
15
Jardiance
Empagliflozin
14

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Student in an Organized Health Care Education/Training Program Overview

How Clayton Davis, MD fits within the Student in an Organized Health Care Education/Training Program landscape nationally.

331,761
Student in an Organized Health Care Education/Training Program Providers in US
55
States with Student in an Organized Health Care Education/Training Program
459
Avg Claims per Provider

Clayton Davis, MD's 538 claims are above the specialty average of 459.

Nearby Student in an Organized Health Care Education/Training Program Providers in Missouri

Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as Davis.

Compare Student in an Organized Health Care Education/Training Program nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Missouri medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Student in an Organized Health Care Education/Training Program peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Clayton Davis, MD's specialty?
Clayton Davis, MD specializes in Student in an Organized Health Care Education/Training Program and practices in Saint Louis, Missouri. Credentials: MD.
How much does Clayton Davis, MD prescribe under Medicare Part D?
In 2023, Clayton Davis, MD wrote 538 Medicare Part D claims totaling $60K in drug costs for 95 beneficiaries.
Where is Clayton Davis, MD located?
Clayton Davis, MD is located at 1 BARNES JEWISH HOSPITAL PLZ, Saint Louis, MO, 63110. Phone: (314) 362-8065.
What is Clayton Davis, MD's NPI number?
Clayton Davis, MD's National Provider Identifier (NPI) is 1972185890, issued on 04/21/2021.
Does Clayton Davis, MD prescribe opioids?
Yes, Clayton Davis, MD had 33 opioid claims in 2023 with an opioid prescribing rate of 6.1%.
How many Student in an Organized Health Care Education/Training Program providers are there in the US?
There are 331,761 Student in an Organized Health Care Education/Training Program providers across 55 states in the US. The average Student in an Organized Health Care Education/Training Program provider writes 459 Medicare Part D claims per year.
What drugs does Clayton Davis, MD prescribe most often?
Based on 2023 Medicare Part D data, Clayton Davis, MD's most frequently prescribed drugs include Pantoprazole Sodium, Atorvastatin Calcium, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Clayton Davis, MD accept Medicare?
Clayton Davis, MD appears in CMS Medicare data with 538 Part D claims and 95 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Clayton Davis, MD's credentials?
Clayton Davis, MD's NPI is 1972185890 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology

Compiled from official public sources by the PlainDoctor editorial team.