NPI registry status
Active
2026 NPPES data Addiction Medicine (Preventive Medicine) Physician NPI 1801979463 M.D.
Verify on CMS → Stephen Holtsford, M.D.
Addiction Medicine (Preventive Medicine) Physician in Saint Charles, 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 343 in Addiction Medicine (Preventive 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
337
Medicare Part D claims · 59 beneficiaries · Addiction Medicine (Preventive Medicine) Physician avg: 929
Generic prescribing
97%
generic claims · 3% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Stephen Holtsford, M.D. filed 337 Medicare Part D claims in 2024 as an Addiction Medicine (Preventive Medicine) Physician in Saint Charles, Illinois, prescribing 97% generic.
- 337
- Part D claims, 2024
- 97%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥56th
- pct by Part D claim volume (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 Stephen Holtsford, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1801979463), first enumerated 10/24/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 337 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- 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
2 CMS Care Compare hospital affiliations 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 Stephen Holtsford, M.D.'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 1801979463 · Addiction Medicine (Preventive Medicine) Physician
NPI-10 · ENUM-LEGACY · TAX-TRACE · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1801979463
- ENUM-LEGACY 2006
- TAX-TRACE 343
- RX-LIGHT 337
- BOOK-THIN 7 in Illinois
- PHOTO-ENUM John Jones, MD · 2006
Stephen Holtsford, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
337 ≥ 56th percentile 56% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. 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 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Stephen Holtsford, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - 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 Stephen Holtsford, M.D.?
Quality data not reportedPrimary specialty
Addiction Medicine (Preventive Medicine) Physician
Medicare Part D claims
337 64% vs specialty avg
Specialty distribution in Illinois
How Addiction Medicine (Preventive Medicine) Physician compares to other specialties among Illinois providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Addiction Medicine (Preventive Medicine) Physician. Verify directly:
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 | 1801979463 |
|---|---|
| Specialty | Addiction Medicine (Preventive Medicine) Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 10/24/2006 |
Hospital and facility affiliations
Facilities where Stephen Holtsford, 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.
County OF Dupage Department OF Health
Wheaton, IL
Lighthouse Recovery
St Charles, IL
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 Stephen Holtsford, M.D.. To verify Stephen Holtsford, M.D.'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.
Brand vs generic prescribing mix · Generic-heavy
Stephen Holtsford, M.D. - brand share 3.0%
Addiction Medicine (Preventive Medicine) Physician average
3% brand-name claims vs 97% generic, on 337 2024 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 2024.
337
Total Claims
$30K
Total Drug Cost
59
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 338
- Total Day Supply
- 7,109
- Brand vs Generic
- 3% brand / 97% generic
- Brand Drug Cost
- $4K
- Generic Drug Cost
- $27K
Patient Demographics
- Average Patient Age
- 56.8 years
- Avg HCC Risk Score
- 1.32
- Gender Split
- 47% female / 53% male
- Age Distribution
- <65: 38, 65-74: 20, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Buprenorphine-Naloxone Buprenorphine Hcl/Naloxone Hcl | 176 |
| Buprenorphine Hcl | 61 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Addiction Medicine (Preventive Medicine) Physician in IL →
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Addiction Medicine (Preventive Medicine) Physician Overview
How Stephen Holtsford, M.D. fits within the Addiction Medicine (Preventive Medicine) Physician landscape nationally.
343
Addiction Medicine (Preventive Medicine) Physician Providers in US
46
States with Addiction Medicine (Preventive Medicine) Physician
929
Avg Claims per Provider
Stephen Holtsford, M.D.'s 337 claims are below the specialty average of 929.
Nationwide Addiction Medicine (Preventive Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Holtsford, both outside Illinois so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Addiction Medicine (Preventive Medicine) Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Holtsford.
One of 7 Addiction Medicine (Preventive Medicine) Physician providers enrolled in Illinois, 5 are shown here.
Frequently Asked Questions
What is Stephen Holtsford, M.D.'s specialty? ▼
Stephen Holtsford, M.D. specializes in Addiction Medicine (Preventive Medicine) Physician and practices in Saint Charles, Illinois. Credentials: M.D..
How much does Stephen Holtsford, M.D. prescribe under Medicare Part D? ▼
In 2024, Stephen Holtsford, M.D. wrote 337 Medicare Part D claims totaling $30K in drug costs for 59 beneficiaries.
Where is Stephen Holtsford, M.D. located? ▼
Stephen Holtsford, M.D. is located at 210 S 5TH ST STE 10, Saint Charles, IL, 60174. Phone: (630) 940-2468.
What is Stephen Holtsford, M.D.'s NPI number? ▼
Stephen Holtsford, M.D.'s National Provider Identifier (NPI) is 1801979463, issued on 10/24/2006.
Does Stephen Holtsford, M.D. prescribe more brand-name or generic drugs? ▼
Stephen Holtsford, M.D.'s prescribing is 3% brand-name and 97% generic drugs by claim count, with $4K in brand drug costs.
How many Addiction Medicine (Preventive Medicine) Physician providers are there in the US? ▼
There are 343 Addiction Medicine (Preventive Medicine) Physician providers across 46 states in the US. The average Addiction Medicine (Preventive Medicine) Physician provider writes 929 Medicare Part D claims per year.
What drugs does Stephen Holtsford, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Stephen Holtsford, M.D.'s most frequently prescribed drugs include Buprenorphine-Naloxone, Buprenorphine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Stephen Holtsford, M.D. accept Medicare? ▼
Stephen Holtsford, M.D. appears in CMS Medicare data with 337 Part D claims and 59 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Stephen Holtsford, M.D.'s credentials? ▼
Stephen Holtsford, M.D.'s NPI is 1801979463 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 (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- 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.