NPPES file of Aug 9, 2026

Stephen Holtsford, M.D.

Addiction Medicine (Preventive Medicine) Physician · Saint Charles, IL

Stephen Holtsford, M.D. is an addiction medicine (preventive medicine) physician with a practice address in Saint Charles, Illinois, and NPI 1801979463, issued on Oct 24, 2006. Check the license (Illinois 036091535, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1801979463
Name
Stephen Holtsford
Credential
M.D.
Primary taxonomy
Addiction Medicine (Preventive Medicine) Physician 2083A0300X
License number
036091535 IL
Self-reported in NPPES; status is on the state search
Practice location
210 S 5TH St Ste 10, Saint Charles, IL 60174
Phone
(630) 940-2468
Enumerated
Oct 24, 2006
Record last updated
Feb 23, 2024
Medicaid ID
036091535 5 IL
Medicare enrollment
Enrolled (PECOS I20240815003098); accepts Medicare assignment
Medical or professional school
University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1993
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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5 nearest addiction medicine (preventive medicine) physician records → All 6 in Illinois → Look up another NPI →

Verify Stephen Holtsford in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036091535    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

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20% fewer Medicare Part D claims than the average addiction medicine (preventive medicine) physician in 2024

337 Medicare Part D claims for 59 beneficiaries, against an average of 420 among the 224 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.

  1. Stephen Holtsford337
  2. Specialty average420

Most prescribed

  1. Buprenorphine-Naloxone176 claims
  2. Buprenorphine Hcl61 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through 2 group practices

  1. County OF Dupage Department OF HealthWheaton, IL
  2. Lighthouse RecoverySt Charles, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Addiction Medicine (Preventive Medicine) Physician providers in Illinois

There are 6 addiction medicine (preventive medicine) physician records in Illinois.

All 6 in Illinois → Every provider in Saint Charles → Addiction Medicine (Preventive Medicine) Physician nationwide →

The 5 addiction medicine (preventive medicine) physician records with the nearest ZIP codes

  1. Humna Fayyaz, MDChicago, IL 606251447746466
  2. Luciana Ribeiro, M.D.; PH.D.Chicago, IL 606571437481355
  3. Darrell Rust, MDRock Island, IL 612011811960933
  4. Adeyemi Fatoki, M.D.Ottawa, IL 613501760449938
  5. Paul Bonucci, MDPrinceton, IL 613561922114677

Common questions

What is Stephen Holtsford, M.D.'s NPI number?

Stephen Holtsford, M.D.'s National Provider Identifier (NPI) is 1801979463, issued on Oct 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stephen Holtsford, M.D. located?

The NPPES record lists a practice address at 210 S 5TH St Ste 10, Saint Charles, IL, 60174. Phone: (630) 940-2468. Providers update this record themselves, so call before visiting.

How can I verify Stephen Holtsford, M.D.'s license?

NPPES lists Illinois license number 036091535, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Stephen Holtsford, M.D. prescribe under Medicare Part D?

In 2024, Stephen Holtsford, M.D. had 337 Medicare Part D claims for 59 beneficiaries; the average among addiction medicine (preventive medicine) physician prescribers was 420. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.