NPI registry status
Active
2026 NPPES data Cardiovascular Disease Physician NPI 1639581127 D.O.
Verify on CMS → Alexander Bolton, D.O.
Cardiovascular Disease Physician in Belleville, Illinois.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 25,298 in Cardiovascular Disease 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
170
Medicare Part D claims · 77 beneficiaries · Cardiovascular Disease Physician avg: 3K
MIPS score
99.4/100
▲ 16 pts above national avg 83.5 · Exceptional
What the federal data shows
Alexander Bolton, D.O. reported a CMS MIPS final score of 99.4/100 - above the 83.5 national average - and filed 170 Medicare Part D claims in 2024.
- 99.4/100
- MIPS score · +16 vs avg
- 170
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥91st
- 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 Alexander Bolton, D.O.
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 1639581127), first enumerated 06/02/2014.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 170 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 99.4/100 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
- State context
State board disciplinary context
Illinois statewide board action statistics are published annually — these figures describe aggregate state activity, not Alexander Bolton, D.O.'s individual license status. Verify directly with the state medical board.
Source: IDFPR annual report 2023
- 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 1639581127 · Cardiovascular Disease Physician
NPI-10 · ENUM-MID · TAX-MID · MIPS-ELITE · RX-LIGHT · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1639581127
- ENUM-MID 2014
- TAX-MID 25K Cardiovascular Disease
- MIPS-ELITE 99.4/100
- RX-LIGHT 170
- BOOK-LIGHT 992 in Illinois
- PHOTO-FINISH Steven Young · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- James Ampadu · l…
James Ampadu
99.3 MIPS pts
- John Baugh · near
John Baugh
99.3 MIPS pts
- Bolton · this pr…
Bolton · this provider
99.4 MIPS pts
- Steven Young · h…
Steven Young
99.4 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Alexander Bolton, D.O.'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.
99 ≥ 91st percentile 91% 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 Alexander Bolton, D.O. sits
This provider among cardiovascular disease physician peers
Across the 7,999 cardiovascular disease physician providers who report both Medicare Part D prescribing and a MIPS quality score, Alexander Bolton, D.O. writes more Part D claims than 7% of them and scores higher on MIPS quality than 90% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one cardiovascular disease physician peer from a representative sample of 60; the gold marker is Alexander Bolton, D.O.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Alexander Bolton, 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 Alexander Bolton, D.O.?
High performer (top quartile)Primary specialty
Cardiovascular Disease Physician
Medicare Part D claims
170 95% vs specialty avg
MIPS final score
99.4/100 15.9 pts vs avg
Specialty distribution in Illinois
How Cardiovascular Disease Physician compares to other specialties among Illinois providers
Medicare quality performance, MIPS
Alexander Bolton, D.O.'s 2023 MIPS final score plotted against the Cardiovascular Disease Physician national average
- MIPS Final Score
- 99.4/100
- 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 | 1639581127 |
|---|---|
| Specialty | Cardiovascular Disease Physician |
| Credentials | D.O. |
| Gender | Male |
| NPI Issued | 06/02/2014 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
99.3791
Final Score
Measured-score avg: 83.5
95.6994
Quality
98.9577
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Alexander Bolton, 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.
Pines Health Services
Caribou, ME
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
License & disciplinary context - Illinois IDFPR 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~42K Illinois medical licensees in 2023 - they are NOT specific to Alexander Bolton, D.O.. To verify Alexander Bolton, D.O.'s current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases
IDFPR publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
170
Total Claims
$10K
Total Drug Cost
77
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 195.4
- Total Day Supply
- 4,322
- Generic Drug Cost
- $2K
- Opioid Claims
- 11 (6.5% rate)
- Antibiotic Claims
- 26
Patient Demographics
- Average Patient Age
- 75.8 years
- Avg HCC Risk Score
- 2.41
- Gender Split
- 52% female / 48% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Furosemide | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Cardiovascular Disease Physician Overview
How Alexander Bolton, D.O. fits within the Cardiovascular Disease Physician landscape nationally.
25,298
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,149
Avg Claims per Provider
Alexander Bolton, D.O.'s 170 claims are below the specialty average of 3,149.
Nationwide Cardiovascular Disease Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Bolton, both outside Illinois so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (99.4 here).
Same NPPES enumeration year (2014)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Cardiovascular Disease Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Bolton.
One of 992 Cardiovascular Disease Physician providers enrolled in Illinois, 5 are shown here.
Dr. Nicolaos Abariotis
MD
Chicago, IL
Dr. Tahir Abbasi
M.D.
Hazel Crest, IL
Dr. Ashraf Abourahma
M.D.
Oak Lawn, IL
Dr. Bruce Abramowitz
M.D.,F.A.C.C.
Oak Lawn, IL
Dr. Amjad Abualsuod
MD
Peoria, IL
Compare Cardiovascular Disease Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Alexander Bolton, D.O.'s specialty? ▼
Alexander Bolton, D.O. specializes in Cardiovascular Disease Physician and practices in Belleville, Illinois. Credentials: D.O..
How much does Alexander Bolton, D.O. prescribe under Medicare Part D? ▼
In 2024, Alexander Bolton, D.O. wrote 170 Medicare Part D claims totaling $10K in drug costs for 77 beneficiaries.
What is Alexander Bolton, D.O.'s Medicare quality score? ▼
Alexander Bolton, D.O. has a CMS MIPS Final Score of 99.4/100 (Quality: 95.7). 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 Alexander Bolton, D.O. located? ▼
Alexander Bolton, D.O. is located at 4600 MEMORIAL DR STE W1, Belleville, IL, 62226. Phone: (618) 233-3066.
What is Alexander Bolton, D.O.'s NPI number? ▼
Alexander Bolton, D.O.'s National Provider Identifier (NPI) is 1639581127, issued on 06/02/2014.
Does Alexander Bolton, D.O. prescribe opioids? ▼
Yes, Alexander Bolton, D.O. had 11 opioid claims in 2024 with an opioid prescribing rate of 6.5%.
How many Cardiovascular Disease Physician providers are there in the US? ▼
There are 25,298 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,149 Medicare Part D claims per year.
What drugs does Alexander Bolton, D.O. prescribe most often? ▼
Based on 2024 Medicare Part D data, Alexander Bolton, D.O.'s most frequently prescribed drugs include Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Alexander Bolton, D.O. accept Medicare? ▼
Alexander Bolton, D.O. appears in CMS Medicare data with 170 Part D claims and 77 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Alexander Bolton, D.O.'s credentials? ▼
Alexander Bolton, D.O.'s NPI is 1639581127 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 (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.