NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1003295171 D.O.
Verify on CMS → William Andrew, D.O.
Internal Medicine Physician in Columbia, South Carolina.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,737 in 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
282
Medicare Part D claims · 104 beneficiaries · Internal Medicine Physician avg: 3K
MIPS score
99.3/100
▲ 16 pts above national avg 83.1 · Exceptional
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
William Andrew, D.O. reported a CMS MIPS final score of 99.3/100 - above the 83.1 national average - and filed 282 Medicare Part D claims in 2023.
- 99.3/100
- MIPS score · +16 vs avg
- 282
- Part D claims, 2023
- 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 Andrew, D.O.'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 9% higher than 91% 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 Andrew, D.O. sits
This provider among internal medicine physician peers
Across the 36,260 internal medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, William Andrew, D.O. writes more Part D claims than 31% of them and scores higher on MIPS quality than 92% - placing this provider in the lower-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 internal medicine physician peer from a representative sample of 60; the gold marker is William Andrew, D.O.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
William Andrew, D.O. 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 Andrew, D.O.?
High performer (top quartile)Primary specialty
Internal Medicine Physician
Medicare Part D claims
282 90% vs specialty avg
MIPS final score
99.3/100 16.2 pts vs avg
Specialty distribution in South Carolina
How Internal Medicine Physician compares to other specialties among South Carolina providers
Medicare quality performance, MIPS
William Andrew, D.O.'s 2023 MIPS final score plotted against the Internal Medicine Physician national average
- MIPS Final Score
- 99.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Internal Medicine Physician) - 99.3/100 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 Andrew, D.O. appears in the CMS NPPES registry as an Internal Medicine Physician provider holding D.O. credentials at 14 RICHLAND MEDICAL PARK DR STE 320, Columbia, SC, 29203, with a listed phone of (803) 434-8721. NPI 1003295171 was issued on 05/22/2015.
Medicare Part D records for calendar year 2023 show 282 prescription claims written by this provider, covering 104 Medicare beneficiaries and totaling roughly $23K in drug spend, with an opioid prescribing rate of 7.1%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 99.3/100 for the 2023 performance year (Quality 90.6), compared with the national average of 83.1.
Internal Medicine Physician is a high-volume specialty nationwide, with 172,737 enrolled providers across 56 states and an average of 2,716 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 | 1003295171 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | D.O. |
| Gender | Male |
| NPI Issued | 05/22/2015 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
99.3294
Final Score
Avg: 83.1
90.5979
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where William Andrew, D.O. 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.
Prisma Health Medical Group-Midlands
Columbia, SC
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
282
Total Claims
$23K
Total Drug Cost
104
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 305
- Total Day Supply
- 6,999
- Generic Drug Cost
- $4K
- Opioid Claims
- 20 (7.1% rate)
- Antibiotic Claims
- 30
Patient Demographics
- Average Patient Age
- 69.4 years
- Avg HCC Risk Score
- 3.93
- Gender Split
- 57% female / 43% male
- Age Distribution
- <65: 26, 65-74: 39, 75-84: 28, 85+: 11
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What William Andrew, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Prednisone
Prednisone
18 claims
- Oxycodone Hcl
Oxycodone Hcl
14 claims
- Metoprolol Succinate
Metoprolol Succinate
12 claims
- Pantoprazole Sodium
Pantoprazole Sodium
12 claims
- Furosemide
Furosemide
11 claims
| Drug | Claims |
|---|---|
| Prednisone | 18 |
| Oxycodone Hcl | 14 |
| Metoprolol Succinate | 12 |
| Pantoprazole Sodium | 12 |
| Furosemide | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How William Andrew, D.O. fits within the Internal Medicine Physician landscape nationally.
172,737
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
William Andrew, D.O.'s 282 claims are below the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in South Carolina
Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as Andrew.
Dr. John Abbott
M.D.
Sumter, SC
Dr. Murad Abdelsalam
MD
Rock Hill, SC
Dr. Mohammed Abdulfatah
MD
Orangeburg, SC
Dr. Amjad Abdulrahman
MD
Irmo, SC
Dr. Elizabeth Abell
MD
Spartanburg, SC
Compare Internal Medicine Physician 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 South Carolina medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby 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 South Carolina
Frequently Asked Questions
What is William Andrew, D.O.'s specialty? ▼
William Andrew, D.O. specializes in Internal Medicine Physician and practices in Columbia, South Carolina. Credentials: D.O..
How much does William Andrew, D.O. prescribe under Medicare Part D? ▼
In 2023, William Andrew, D.O. wrote 282 Medicare Part D claims totaling $23K in drug costs for 104 beneficiaries.
What is William Andrew, D.O.'s Medicare quality score? ▼
William Andrew, D.O. has a CMS MIPS Final Score of 99.3/100 (Quality: 90.6). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is William Andrew, D.O. located? ▼
William Andrew, D.O. is located at 14 RICHLAND MEDICAL PARK DR STE 320, Columbia, SC, 29203. Phone: (803) 434-8721.
What is William Andrew, D.O.'s NPI number? ▼
William Andrew, D.O.'s National Provider Identifier (NPI) is 1003295171, issued on 05/22/2015.
Does William Andrew, D.O. prescribe opioids? ▼
Yes, William Andrew, D.O. had 20 opioid claims in 2023 with an opioid prescribing rate of 7.1%.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,737 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does William Andrew, D.O. prescribe most often? ▼
Based on 2023 Medicare Part D data, William Andrew, D.O.'s most frequently prescribed drugs include Prednisone, Oxycodone Hcl, Metoprolol Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does William Andrew, D.O. accept Medicare? ▼
William Andrew, D.O. appears in CMS Medicare data with 282 Part D claims and 104 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Andrew, D.O.'s credentials? ▼
William Andrew, D.O.'s NPI is 1003295171 with credentials D.O.. 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.
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.