Stephen Holtsford, M.D.
Stephen Holtsford, M.D. is an Addiction Medicine (Preventive Medicine) Physician in Saint Charles, IL, registered under NPI 1801979463.
Getting there
The practice address on file is 210 S 5TH ST STE 10, Saint Charles, IL 60174. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 036091535 | IL | Addiction Medicine (Preventive Medicine)… primary |
This provider holds licence 036091535 issued in IL. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Emergency Medicine
- PAC ID
- 2466448329
Enrolled in Medicare 2 times, across 1 state:
| State | Enrollment ID | Provider type |
|---|---|---|
| Illinois | I20110209000111 | Practitioner - Emergency Medicine |
| Illinois | I20240815003098 | Practitioner - Addiction Medicine |
Medicare enrolment is recorded as approved under the provider type Practitioner - Emergency Medicine. There are 2 separate enrolment records. Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Addiction Medicine covers
A physician engaged in the subspecialty practice of Addiction Medicine who specializes in the prevention, evaluation, diagnosis, treatment, and recovery of persons with the disease of addiction. NUCC Health Care Provider Taxonomy, code 2083A0300X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1801979463 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 24, 2006 |
| Last updated | Feb 23, 2024 |
| Status | Active |
| Sole proprietor | No |
| Credential | M.D. |
| Practice address |
210 S 5TH ST STE 10 Saint Charles, IL 60174 (630) 940-2468 |
| Mailing address |
PO BOX 9030 Wheeling, IL 60090 |
| Other identifiers |
451530938
· Other (IL) 930061957 · Other (IL) 036091535 5 · Medicaid (IL) |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 8 | 0 | 1 | 9 | 7 | 9 | 4 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 0 | 1 | 9 | 7 | 9 | 4 | 3 |
Sum = 67 · next multiple of 10 = 70 · check digit = 3 · actual last digit = 3
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.