Othniel Stephen Doolittle, M.D.
Internal Medicine (CMS) · Carbondale, IL
At a glance
2250 N Illinois Ave, Carbondale, IL 62901-5612
NPPES record updated Aug 3, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
2250 N Illinois AveCarbondale, IL 62901-5612
Additional reported practice locations
301 S Orange StJonesboro, IL 629521104
Phone: 3098684671 200 E Fairman Ave
Watseka, IL 609701644
Phone: 8154325841
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2010
- CMS specialties
- Internal Medicine
Practice groups
Reported hospital affiliations
- Harrisburg Medical Center Harrisburg, IL
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Service-mix comparison is unavailable for this NPI in the imported Medicare service file.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Internal Medicine (CMS)
- Taxonomy code
- 208M00000X
- Enumeration date
- Jun 14, 2010
- Record updated
- Aug 3, 2026
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
207P00000X
License reported: 036.133193 IL
207R00000X
License reported: 2013004979 MO
208M00000X · Primary
License reported: 036133193 IL
207R00000X
License reported: 125.058047 IL
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
2250 N Illinois AveCarbondale, IL 62901-5612
- Phone
- (618) 833-1691
Mailing address
2250 N ILLINOIS AVECARBONDALE, IL 629015612
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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