Diana Oakley, APN
NPI 1033431580 · Nurse Practitioner · Mattoon, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Oakley, APN is a Nurse Practitioner provider in Mattoon, IL (NPI 1033431580).
Provider details
- NPI number
- 1033431580
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APN
- Sex
- Female
- Sole proprietor
- No
- License
- 209008054 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 934 N Route 49 Ste aCasey, IL 62420-1454Phone: (217) 932-4061Fax: (217) 932-5191
Registry dates
- Enumerated
- 2010-02-25
- Last updated
- 2020-01-16
- Certified
- 2020-01-16
Frequently asked questions
- What is Diana Oakley's NPI number?
- Diana Oakley's National Provider Identifier (NPI) is 1033431580, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Oakley's specialty?
- Diana Oakley is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Diana Oakley located?
- Diana Oakley's practice location on file with NPPES is 1005 Health Center Dr Ste 104, Mattoon, IL 61938-4637.
- What is Diana Oakley's phone number?
- The practice phone number listed in the NPPES registry for Diana Oakley is (217) 258-2178.
- Does Diana Oakley accept Medicare?
- Diana Oakley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Oakley's NPI active?
- Yes — Diana Oakley's NPI (1033431580) is active in the NPPES registry as of the last update on 2020-01-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.