DR. OTHNIEL STEPHEN DOOLITTLE M.D.
NPI 1386965499
Hospitalist in Carbondale, IL
About Dr. Othniel Stephen Doolittle M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. OTHNIEL STEPHEN DOOLITTLE M.D. (NPI 1386965499) is an individual hospitalist provider in Carbondale, Illinois, licensed in Illinois (036133193) and active in the NPI registry since June 2010. He is enrolled in Medicare PECOS, is affiliated with Harrisburg Medical Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Othniel Stephen Doolittle M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
10Medicare enrollment records show Othniel Doolittle reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Carbondale, IL 62901
- Reassigned Medicare billing, Illinois enrollment
- 88 clinicians in this Medicare group
Marion, IL 62959
- Reassigned Medicare billing, Illinois enrollment
- 228 clinicians in this Medicare group
Du Quoin, IL 62832
- Reassigned Medicare billing, Illinois enrollment
- 47 clinicians in this Medicare group
Benton, IL 62812
- Reassigned Medicare billing, Illinois enrollment
- Also billed through NPI 1255369427 (Illinois)
- 34 clinicians in this Medicare group
Harrisburg, IL 62946
- Reassigned Medicare billing, Illinois enrollment
- 169 clinicians in this Medicare group
Albion, IL 62806
- Reassigned Medicare billing, Illinois enrollment
- Also billed through NPI 1194728808 (Illinois)
- 99 clinicians in this Medicare group
Lawrenceville, IL 62439
- Reassigned Medicare billing, Illinois enrollment
- Also billed through NPI 1881643401 (Illinois)
- 78 clinicians in this Medicare group
Watseka, IL 60970
- Reassigned Medicare billing, Illinois enrollment
- 78 clinicians in this Medicare group
- Reassigned Medicare billing, Illinois enrollment
- 208 clinicians in this Medicare group
Harrisburg, IL 62946
- Reassigned Medicare billing, Illinois enrollment
- 60 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Harrisburg Medical Center
Acute Care Hospitals · Harrisburg, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 62901 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CARBONDALE, IL 62901
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Othniel Doolittle's NPI number?
The NPI number for Othniel Doolittle is 1386965499. It was assigned to this individual provider in the NPPES registry on June 14, 2010.
Where is Othniel Doolittle located?
Othniel Doolittle practices at 2250 N Illinois Ave, Carbondale, IL 62901. The listed phone number is (618) 833-1691.
What is Othniel Doolittle's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Othniel Doolittle enrolled in Medicare?
Yes. Othniel Doolittle is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Othniel Doolittle's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Othniel Doolittle reassigns Medicare benefits to 10 organizations: Granite City Hospitalist Services LLC (Carbondale, IL), Deaconess Illinois Specialty Clinic, Inc. (Marion, IL), Marshall Browning Hospital Association (Du Quoin, IL), Franklin Hospital District (Benton, IL), Statera Health Care, LLC (Harrisburg, IL) and 5 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Othniel Doolittle's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Othniel Doolittle accept?
Health plans from CareSource list Othniel Doolittle as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Othniel Doolittle affiliated with any hospitals?
According to CMS data, Othniel Doolittle is affiliated with Harrisburg Medical Center.
When was this NPI record last updated?
The NPPES record for Othniel Doolittle was last updated on August 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Othniel Stephen Doolittle, M.D. · NPI 1386965499
Hospitalist physician in Carbondale, Illinois. Individual provider, active in the CMS NPPES registry since June 14, 2010.
## Identity
- **NPI:** 1386965499 (Entity type: Individual)
- **Enumerated:** June 14, 2010
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 036133193 (Illinois)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2250 N ILLINOIS AVE, Carbondale, IL 62901-5612
- **Phone:** (618) 833-1691
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 10 organizations under Medicare reassignment (form CMS-855R): Granite City Hospitalist Services LLC (NPI 1669926424, Carbondale, IL); Deaconess Illinois Specialty Clinic, Inc. (NPI 1386351856, Marion, IL); Marshall Browning Hospital Association (NPI 1821099441, Du Quoin, IL); Franklin Hospital District (NPI 1699778951, Benton, IL); Statera Health Care, LLC (NPI 1043874449, Harrisburg, IL); and 5 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** August 3, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1386965499) · Data from the CMS NPPES public registry.