Craig Showalter, MD
NPI 1548299340 · Addiction Psychiatry Physician · Northfield, IL
Enrolled with Medicare as Practitioner - Addiction Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Craig Showalter, MD is a Addiction Psychiatry Physician provider in Northfield, IL (NPI 1548299340).
Provider details
- NPI number
- 1548299340
- Entity type
- Individual
- Primary specialty
- Addiction Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 36 |
| Alprazolam | 26 |
| Diazepam | 23 |
| Fluoxetine Hcl | 13 |
| Clonazepam | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-02
- Last updated
- 2007-07-08
Frequently asked questions
- What is Craig Showalter's NPI number?
- Craig Showalter's National Provider Identifier (NPI) is 1548299340, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Craig Showalter's specialty?
- Craig Showalter is listed in the NPPES registry with a primary specialty of Addiction Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Craig Showalter located?
- Craig Showalter's practice location on file with NPPES is 1829 Winnetka Ave, Northfield, IL 60093-3256.
- What is Craig Showalter's phone number?
- The practice phone number listed in the NPPES registry for Craig Showalter is (847) 446-6464.
- Does Craig Showalter accept Medicare?
- Craig Showalter is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Craig Showalter's NPI active?
- Yes — Craig Showalter's NPI (1548299340) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.