Jefferson County
NPI 1235253907 · Public Health or Welfare Agency · Mount Vernon, IL
Enrolled with Medicare as Part B Supplier - Mass Immunization (roster Biller Only) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jefferson County is a Public Health or Welfare Agency organization in Mount Vernon, IL (NPI 1235253907).
Provider details
- NPI number
- 1235253907
- Entity type
- Organization
- Primary specialty
- Public Health or Welfare AgencyAgencies
- Organization subpart
- No
- Authorized official
- Jessica Mcdermott, Assistant Administrator(618) 244-7134
Specialties & taxonomies
Agencies
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
100% 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.
Practice location
Mailing address
Other names (DBA / former)
- Other name
- Jefferson County
Registry dates
- Enumerated
- 2007-03-19
- Last updated
- 2024-10-30
- Certified
- 2024-10-30
Frequently asked questions
- What is Jefferson County's NPI number?
- Jefferson County's National Provider Identifier (NPI) is 1235253907, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Jefferson County?
- Jefferson County is classified in the NPPES registry as Public Health or Welfare Agency (Agencies).
- Where is Jefferson County located?
- Jefferson County's practice location on file with NPPES is 4102 S Water Tower Pl, Mount Vernon, IL 62864-6544.
- What is Jefferson County's phone number?
- The practice phone number listed in the NPPES registry for Jefferson County is (618) 244-7134.
- Does Jefferson County accept Medicare?
- Jefferson County is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Jefferson County?
- The authorized official listed on Jefferson County's NPPES record is Jessica Mcdermott, Assistant Administrator. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Jefferson County's NPI active?
- Yes — Jefferson County's NPI (1235253907) is active in the NPPES registry as of the last update on 2024-10-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.