Michael Workman, MD
NPI 1184731267 · Family Medicine Physician · Herrin, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Workman, MD is a Family Medicine Physician provider in Herrin, IL (NPI 1184731267).
Provider details
- NPI number
- 1184731267
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036109719 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 196 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 826 | 212 |
| Lisinopril | 780 | 198 |
| Levothyroxine Sodium | 603 | 132 |
| Amlodipine Besylate | 595 | 149 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 526 | 84 |
| Gabapentin | 456 | 89 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$550 across 35 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-24
- Last updated
- 2021-09-30
- Certified
- 2021-09-30
Frequently asked questions
- What is Michael Workman's NPI number?
- Michael Workman's National Provider Identifier (NPI) is 1184731267, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Workman's specialty?
- Michael Workman is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Workman located?
- Michael Workman's practice location on file with NPPES is 405 Rushing Drive, Herrin, IL 62948.
- What is Michael Workman's phone number?
- The practice phone number listed in the NPPES registry for Michael Workman is (618) 993-3300.
- Does Michael Workman accept Medicare?
- Michael Workman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Workman's NPI active?
- Yes — Michael Workman's NPI (1184731267) is active in the NPPES registry as of the last update on 2021-09-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.