NPI registry status
Active
2026 NPPES data Addiction Medicine (Internal Medicine) Physician NPI 1801904636 M.D.
Verify on CMS → William Alldredge, M.D.
Addiction Medicine (Internal Medicine) Physician in Tuscaloosa, Alabama.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 553 in Addiction Medicine (Internal 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
50K
Medicare Part D claims · 2K beneficiaries · Addiction Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
87%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
98.7/100
▲ 16 pts above national avg 83.1 · Exceptional
Industry payments
$1.5K
93 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
William Alldredge, M.D. reported a CMS MIPS final score of 98.7/100 - above the 83.1 national average - and filed 50,152 Medicare Part D claims in 2023.
- 98.7/100
- MIPS score · +16 vs avg
- 50K
- Part D claims, 2023
- 87%
- 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.
William Alldredge, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
99 Top 11% higher than 89% of 477,587 scored providers
Each bar is a band; taller bars hold more scored 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.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where William Alldredge, M.D. sits
This provider among addiction medicine (internal medicine) physician peers
Across the 73 addiction medicine (internal medicine) physician providers who report both Medicare Part D prescribing and a MIPS quality score, William Alldredge, M.D. writes more Part D claims than 99% of them and scores higher on MIPS quality than 92% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one addiction medicine (internal medicine) physician peer from a representative sample of 60; the gold marker is William Alldredge, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
William Alldredge, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - 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 Alldredge, M.D.?
High performer (top quartile)Primary specialty
Addiction Medicine (Internal Medicine) Physician
Medicare Part D claims
50,152 36× vs specialty avg
MIPS final score
98.7/100 15.6 pts vs avg
Specialty distribution in Alabama
How Addiction Medicine (Internal Medicine) Physician compares to other specialties among Alabama providers
Medicare quality performance, MIPS
William Alldredge, M.D.'s 2023 MIPS final score plotted against the Addiction Medicine (Internal Medicine) Physician national average
- MIPS Final Score
- 98.7/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Addiction Medicine (Internal Medicine) Physician) - 98.7/100 vs national avg 83.1
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).
William Alldredge, M.D. appears in the CMS NPPES registry as a Addiction Medicine (Internal Medicine) Physician provider holding M.D. credentials at 100 RICE MINE RD N, Tuscaloosa, AL, 35406, with a listed phone of (205) 349-4200. NPI 1801904636 was issued on 08/29/2006.
Medicare Part D records for calendar year 2023 show 50,152 prescription claims written by this provider, covering 1,797 Medicare beneficiaries and totaling roughly $3.8 million in drug spend, split 12% brand-name and 87% generic by claim count, with an opioid prescribing rate of 6.1%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 98.7/100 for the 2023 performance year (Quality 96.6, Cost 86), compared with the national average of 83.1.
Addiction Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 553 enrolled providers across 46 states and an average of 1,403 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
Provider Details
| NPI | 1801904636 |
|---|---|
| Specialty | Addiction Medicine (Internal Medicine) Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 08/29/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
98.6881
Final Score
Avg: 83.1
96.5798
Quality
86.002
Cost
Reporting: Group practice
Hospital and facility affiliations
Facilities where William Alldredge, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Internal Medicine Associates OF Tuscaloosa, PC
Tuscaloosa, AL
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Alldredge, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$1.5K
Largest payer
PFIZER INC.
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 Alldredge, M.D. - brand share 12.0%
Addiction Medicine (Internal Medicine) Physician average
12% brand-name claims vs 87% generic, on 50,152 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.
50,152
Total Claims
$3.8M
Total Drug Cost
1,797
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 72,557
- Total Day Supply
- 1,980,108
- Brand vs Generic
- 12% brand / 87% generic
- Brand Drug Cost
- $2.8M
- Generic Drug Cost
- $1.1M
- Opioid Claims
- 3,045 (6.1% rate)
- Antibiotic Claims
- 999
Patient Demographics
- Average Patient Age
- 72.8 years
- Avg HCC Risk Score
- 1.63
- Gender Split
- 59% female / 41% male
- Age Distribution
- <65: 307, 65-74: 710, 75-84: 526, 85+: 254
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What William Alldredge, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
1,779 claims
- Atorvastatin Calcium
Atorvastatin Calcium
1,775 claims
- Levothyroxine Sodium
Levothyroxine Sodium
1,522 claims
- Amlodipine Besylate
Amlodipine Besylate
1,496 claims
- Gabapentin
Gabapentin
1,471 claims
- Trazodone Hcl
Trazodone Hcl
1,269 claims
- Pantoprazole Sodium
Pantoprazole Sodium
1,143 claims
- Potassium Chloride
Potassium Chloride
1,041 claims
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 1,779 |
| Atorvastatin Calcium | 1,775 |
| Levothyroxine Sodium | 1,522 |
| Amlodipine Besylate | 1,496 |
| Gabapentin | 1,471 |
| Trazodone Hcl | 1,269 |
| Pantoprazole Sodium | 1,143 |
| Potassium Chloride | 1,041 |
| Eliquis Apixaban | 1,012 |
| Lisinopril | 894 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Addiction Medicine (Internal Medicine) Physician in AL →
All providers in Alabama →
Compare specialties →
Addiction Medicine (Internal Medicine) Physician Overview
How William Alldredge, M.D. fits within the Addiction Medicine (Internal Medicine) Physician landscape nationally.
553
Addiction Medicine (Internal Medicine) Physician Providers in US
46
States with Addiction Medicine (Internal Medicine) Physician
1,403
Avg Claims per Provider
William Alldredge, M.D.'s 50,152 claims are above the specialty average of 1,403.
Nearby Addiction Medicine (Internal Medicine) Physician Providers in Alabama
Other clinicians with the same primary specialty enrolled in Alabama, drawn from the same CMS NPPES roster as Alldredge.
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 Alabama medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Addiction Medicine (Internal Medicine) Physician 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Alabama
Frequently Asked Questions
What is William Alldredge, M.D.'s specialty? ▼
William Alldredge, M.D. specializes in Addiction Medicine (Internal Medicine) Physician and practices in Tuscaloosa, Alabama. Credentials: M.D..
How much does William Alldredge, M.D. prescribe under Medicare Part D? ▼
In 2023, William Alldredge, M.D. wrote 50,152 Medicare Part D claims totaling $3.8M in drug costs for 1,797 beneficiaries.
What is William Alldredge, M.D.'s Medicare quality score? ▼
William Alldredge, M.D. has a CMS MIPS Final Score of 98.7/100 (Quality: 96.6, Cost: 86). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is William Alldredge, M.D. located? ▼
William Alldredge, M.D. is located at 100 RICE MINE RD N, Tuscaloosa, AL, 35406. Phone: (205) 349-4200.
What is William Alldredge, M.D.'s NPI number? ▼
William Alldredge, M.D.'s National Provider Identifier (NPI) is 1801904636, issued on 08/29/2006.
Does William Alldredge, M.D. prescribe more brand-name or generic drugs? ▼
William Alldredge, M.D.'s prescribing is 12% brand-name and 87% generic drugs by claim count, with $2.8M in brand drug costs.
Does William Alldredge, M.D. prescribe opioids? ▼
Yes, William Alldredge, M.D. had 3,045 opioid claims in 2023 with an opioid prescribing rate of 6.1%.
How many Addiction Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 553 Addiction Medicine (Internal Medicine) Physician providers across 46 states in the US. The average Addiction Medicine (Internal Medicine) Physician provider writes 1,403 Medicare Part D claims per year.
What drugs does William Alldredge, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, William Alldredge, M.D.'s most frequently prescribed drugs include Hydrocodone-Acetaminophen, Atorvastatin Calcium, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does William Alldredge, M.D. accept Medicare? ▼
William Alldredge, M.D. appears in CMS Medicare data with 50,152 Part D claims and 1,797 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Alldredge, M.D.'s credentials? ▼
William Alldredge, M.D.'s NPI is 1801904636 with credentials M.D.. 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
Compiled from official public sources by the PlainDoctor editorial team.