NPI registry status
Active
2026 NPPES data Anatomic Pathology & Clinical Pathology Physician NPI 1295865590 MD
Verify on CMS → William Boyce, MD
Anatomic Pathology & Clinical Pathology Physician in St 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 13,978 in Anatomic Pathology & Clinical Pathology 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
16
Medicare Part D claims · Anatomic Pathology & Clinical Pathology Physician avg: 399
MIPS score
63.6/100
▼ 20 pts below national avg 83.5 · Mid-tier
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
William Boyce, MD reported a CMS MIPS final score of 63.6/100 - below the 83.5 national average - and filed 16 Medicare Part D claims in 2024.
- 63.6/100
- MIPS score · -20 vs avg
- 16
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥6th
- pct among measured MIPS (lower-bound band)
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.
Federal trust snapshot
What official records show about William Boyce, MD
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1295865590), first enumerated 03/06/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 16 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 63.6/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1295865590 · Anatomic Pathology & Clinical Pathology Physician
NPI-10 · ENUM-MID · TAX-MID · MIPS-LOW · RX-TRACE · BOOK-THIN · PHOTO-FINISH
- NPI-10 1295865590
- ENUM-MID 2007
- TAX-MID 14K Anatomic Pathology
- MIPS-LOW 63.6/100
- RX-TRACE 16
- BOOK-THIN 307 in Missouri
- PHOTO-FINISH John Andelin, M.D. · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Alfredo Asuncion…
Alfredo Asuncion, M.D.
63.5 MIPS pts
- Boyce · this pro…
Boyce · this provider
63.6 MIPS pts
- John Andelin, M.…
John Andelin, M.D.
63.6 MIPS pts
- Megan Redelman, …
Megan Redelman, M.D.
63.8 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
William Boyce, 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.
64 ≥ 6th percentile 6% 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 Boyce, MD sits
This provider among anatomic pathology & clinical pathology physician peers
Across the 80 anatomic pathology & clinical pathology physician providers who report both Medicare Part D prescribing and a MIPS quality score, William Boyce, MD writes more Part D claims than 33% of them and scores higher on MIPS quality than 8% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one anatomic pathology & clinical pathology physician peer from a representative sample of 60; the gold marker is William Boyce, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
William Boyce, MD 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 Boyce, MD?
Below national averagePrimary specialty
Anatomic Pathology & Clinical Pathology Physician
Medicare Part D claims
16 96% vs specialty avg
MIPS final score
63.6/100 19.9 pts vs avg
Specialty distribution in Missouri
How Anatomic Pathology & Clinical Pathology Physician compares to other specialties among Missouri providers
Medicare quality performance, MIPS
William Boyce, MD's 2023 MIPS final score plotted against the Anatomic Pathology & Clinical Pathology Physician national average
- MIPS Final Score
- 63.6/100
- 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 | 1295865590 |
|---|---|
| Specialty | Anatomic Pathology & Clinical Pathology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 03/06/2007 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
63.6378
Final Score
Measured-score avg: 83.5
20.1939
Quality
58.5987
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where William Boyce, MD 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.
Sarah Bush Lincoln Health Center
★★★☆☆ 3/5
Mattoon, IL
Acute Care Hospitals
CMS CCN: 140189
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 2024.
16
Total Claims
$51
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 38.333
- Total Day Supply
- 1,074
- Brand Drug Cost
- $0
- Generic Drug Cost
- $51
Patient Demographics
- Average Patient Age
- 74.3 years
- Avg HCC Risk Score
- 0.86
More Anatomic Pathology & Clinical Pathology Physician in MO →
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Anatomic Pathology & Clinical Pathology Physician Overview
How William Boyce, MD fits within the Anatomic Pathology & Clinical Pathology Physician landscape nationally.
13,978
Anatomic Pathology & Clinical Pathology Physician Providers in US
55
States with Anatomic Pathology & Clinical Pathology Physician
399
Avg Claims per Provider
William Boyce, MD's 16 claims are below the specialty average of 399.
Nationwide Anatomic Pathology & Clinical Pathology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Boyce, both outside Missouri so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (63.6 here).
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Anatomic Pathology & Clinical Pathology Physician Providers in Missouri
Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as Boyce.
One of 307 Anatomic Pathology & Clinical Pathology Physician providers enrolled in Missouri, 5 are shown here.
Frequently Asked Questions
What is William Boyce, MD's specialty? ▼
William Boyce, MD specializes in Anatomic Pathology & Clinical Pathology Physician and practices in St Louis, Missouri. Credentials: MD.
How much does William Boyce, MD prescribe under Medicare Part D? ▼
In 2024, William Boyce, MD wrote 16 Medicare Part D claims totaling $51 in drug costs for N/A beneficiaries.
What is William Boyce, MD's Medicare quality score? ▼
William Boyce, MD has a CMS MIPS Final Score of 63.6/100 (Quality: 20.2, Cost: 58.6). 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 Boyce, MD located? ▼
William Boyce, MD is located at 525 COUCH AVE, St Louis, MO, 63122. Phone: (314) 721-1531.
What is William Boyce, MD's NPI number? ▼
William Boyce, MD's National Provider Identifier (NPI) is 1295865590, issued on 03/06/2007.
How many Anatomic Pathology & Clinical Pathology Physician providers are there in the US? ▼
There are 13,978 Anatomic Pathology & Clinical Pathology Physician providers across 55 states in the US. The average Anatomic Pathology & Clinical Pathology Physician provider writes 399 Medicare Part D claims per year.
Does William Boyce, MD accept Medicare? ▼
William Boyce, MD appears in CMS Medicare data with 16 Part D claims and N/A Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Boyce, MD's credentials? ▼
William Boyce, MD's NPI is 1295865590 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.