DR. MARK BAKER M.D.
NPI 1023469640
Emergency Medicine in Pittsfield, IL
About Dr. Mark Baker M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK BAKER M.D. (NPI 1023469640) is an individual emergency medicine provider in Pittsfield, Illinois, licensed in Illinois (036148580) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS, is affiliated with Blessing Hospital, and maintains a secondary practice location in Quincy.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Mark Baker M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Mark Baker reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Pittsfield, IL 62363
- Reassigned Medicare billing, Illinois enrollment
- Also billed through NPI 1720086218 (Illinois)
- 40 clinicians in this Medicare group
Golden, IL 62339
- Reassigned Medicare billing, Illinois enrollment
- 127 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.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Blessing Hospital
Acute Care Hospitals · Quincy, ILIllini Community Hospital
Critical Access Hospitals · Pittsfield, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 62363 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PITTSFIELD, IL 62363
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 Mark Baker's NPI number?
The NPI number for Mark Baker is 1023469640. It was assigned to this individual provider in the NPPES registry on June 24, 2016.
Where is Mark Baker located?
Mark Baker practices at 640 W Washington St, Pittsfield, IL 62363. The listed phone number is (217) 223-8400.
What is Mark Baker's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Mark Baker enrolled in Medicare?
Yes. Mark Baker is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Mark Baker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Baker reassigns Medicare benefits to 2 organizations: Blessingcare Corporation (Pittsfield, IL) and Blessing Hospital (Golden, IL). 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 Mark Baker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Mark Baker affiliated with any hospitals?
According to CMS data, Mark Baker is affiliated with Blessing Hospital and Illini Community Hospital.
When was this NPI record last updated?
The NPPES record for Mark Baker was last updated on September 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 52 days 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.