NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1578540654 MD
Verify on CMS → William Cornwell, MD
Family Medicine Physician in Ringgold, Georgia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 147,760 in Family Medicine Physician, 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
8K
Medicare Part D claims · 387 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
94.7/100
▲ 11 pts above national avg 83.5 · Exceptional
Industry payments
$153.22
2 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
William Cornwell, MD reported a CMS MIPS final score of 94.7/100 - above the 83.5 national average - and filed 7,643 Medicare Part D claims in 2023.
- 94.7/100
- MIPS score · +11 vs avg
- 8K
- Part D claims, 2023
- 88%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
CMS NPPES provider registry desk
NPI 1578540654 · Family Medicine Physician
NPI-10 · ENUM-LEGACY · TAX-MEGA · MIPS-ELITE · RX-MID · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1578540654
- ENUM-LEGACY 2005
- TAX-MEGA 148K Family Medicine
- MIPS-ELITE 94.7/100
- RX-MID 7,643
- BOOK-LIGHT 3,727 in Georgia
- PHOTO-FINISH William Bates · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Cornwell · this …
Cornwell · this provider
94.7 MIPS pts
- Kimberly Carlton…
Kimberly Carlton
94.7 MIPS pts
- William Bates · …
William Bates
94.7 MIPS pts
- Eileen Boroughs …
Eileen Boroughs
94.7 MIPS pts
- Timothy Brichett…
Timothy Brichetto
94.7 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
William Cornwell, MD's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
95 ≥ 73rd percentile 73% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where William Cornwell, MD sits
This provider among family medicine physician peers
Across the 21,266 family medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, William Cornwell, MD writes more Part D claims than 81% of them and scores higher on MIPS quality than 76% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one family medicine physician peer from a representative sample of 60; the gold marker is William Cornwell, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
William Cornwell, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about William Cornwell, MD?
High performer (top quartile)Primary specialty
Family Medicine Physician
Medicare Part D claims
7,643 124% vs specialty avg
MIPS final score
94.7/100 11.2 pts vs avg
Specialty distribution in Georgia
How Family Medicine Physician compares to other specialties among Georgia providers
Medicare quality performance, MIPS
William Cornwell, MD's 2023 MIPS final score plotted against the Family Medicine Physician national average
- MIPS Final Score
- 94.7/100
- vs 83.5 national avg · 2023 performance year
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1578540654 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 12/29/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
94.7056
Final Score
Measured-score avg: 83.5
89.4112
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for William Cornwell, MD. Source: openpaymentsdata.cms.gov.
Total received
$153
Largest payer
Abbott Laboratories
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Typical
William Cornwell, MD - brand share 12.0%
Family Medicine Physician average
12% brand-name claims vs 88% generic, on 7,643 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
7,643
Total Claims
$723K
Total Drug Cost
387
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 15,633
- Total Day Supply
- 455,161
- Brand vs Generic
- 12% brand / 88% generic
- Brand Drug Cost
- $577K
- Generic Drug Cost
- $144K
- Opioid Claims
- 574 (7.5% rate)
- Antibiotic Claims
- 215
Patient Demographics
- Average Patient Age
- 73.5 years
- Avg HCC Risk Score
- 1.49
- Gender Split
- 57% female / 43% male
- Age Distribution
- <65: 51, 65-74: 144, 75-84: 147, 85+: 45
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What William Cornwell, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
291 claims
- Omeprazole
Omeprazole
282 claims
- Atorvastatin Calcium
Atorvastatin Calcium
274 claims
- Losartan Potassium
Losartan Potassium
251 claims
- Levothyroxine Sodium
Levothyroxine Sodium
249 claims
- Alprazolam
Alprazolam
248 claims
- Gabapentin
Gabapentin
224 claims
- Alendronate Sodium
Alendronate Sodium
173 claims
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 291 |
| Omeprazole | 282 |
| Atorvastatin Calcium | 274 |
| Losartan Potassium | 251 |
| Levothyroxine Sodium | 249 |
| Alprazolam | 248 |
| Gabapentin | 224 |
| Alendronate Sodium | 173 |
| Buspirone Hcl | 167 |
| Lisinopril | 148 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Medicine Physician Overview
How William Cornwell, MD fits within the Family Medicine Physician landscape nationally.
147,760
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
William Cornwell, MD's 7,643 claims are above the specialty average of 3,418.
Nationwide Family Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Cornwell, both outside Georgia so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (94.7 here).
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Medicine Physician Providers in Georgia
Other clinicians with the same primary specialty enrolled in Georgia, drawn from the same CMS NPPES roster as Cornwell.
One of 3,727 Family Medicine Physician providers enrolled in Georgia, 5 are shown here.
Dr. Hayden Aaron
MD
Atlanta, GA
Dr. Margaret Abate
MD
Covington, GA
Dr. Suzanne Abbasi
MD
Grovetown, GA
Dr. Zia Abdi
MD
Atlanta, GA
Dr. Hamdi Abdirahman
MD
Dahlonega, GA
Compare Family Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is William Cornwell, MD's specialty? ▼
William Cornwell, MD specializes in Family Medicine Physician and practices in Ringgold, Georgia. Credentials: MD.
How much does William Cornwell, MD prescribe under Medicare Part D? ▼
In 2023, William Cornwell, MD wrote 7,643 Medicare Part D claims totaling $723K in drug costs for 387 beneficiaries.
What is William Cornwell, MD's Medicare quality score? ▼
William Cornwell, MD has a CMS MIPS Final Score of 94.7/100 (Quality: 89.4). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is William Cornwell, MD located? ▼
William Cornwell, MD is located at 4700 BATTLEFIELD PKWY, Ringgold, GA, 30736. Phone: (706) 861-4990.
What is William Cornwell, MD's NPI number? ▼
William Cornwell, MD's National Provider Identifier (NPI) is 1578540654, issued on 12/29/2005.
Does William Cornwell, MD prescribe more brand-name or generic drugs? ▼
William Cornwell, MD's prescribing is 12% brand-name and 88% generic drugs by claim count, with $577K in brand drug costs.
Does William Cornwell, MD prescribe opioids? ▼
Yes, William Cornwell, MD had 574 opioid claims in 2023 with an opioid prescribing rate of 7.5%.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,760 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does William Cornwell, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, William Cornwell, MD's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Omeprazole, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does William Cornwell, MD accept Medicare? ▼
William Cornwell, MD appears in CMS Medicare data with 7,643 Part D claims and 387 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Cornwell, MD's credentials? ▼
William Cornwell, MD's NPI is 1578540654 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
View source datasets and methodology notes
- 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.