WILLIAM R COLLIER MD
NPI 1811953730
Family Medicine in Marion, OH
About William R Collier Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM R COLLIER MD (NPI 1811953730) is an individual family medicine provider in Marion, Ohio, licensed in Ohio (35083497) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 6
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
William R Collier Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show William Collier reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Seaman, OH 45679
- Reassigned Medicare billing, Ohio enrollment
- 894 clinicians in this Medicare group
- Reassigned Medicare billing, Ohio enrollment
- 179 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 3
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 43302 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.
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 William Collier's NPI number?
The NPI number for William Collier is 1811953730. It was assigned to this individual provider in the NPPES registry on April 21, 2006.
Where is William Collier located?
William Collier practices at 1000 Mckinley Park Dr, Marion, OH 43302. The listed phone number is (740) 383-8728.
What is William Collier's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is William Collier enrolled in Medicare?
Yes. William Collier is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for William Collier's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Collier reassigns Medicare benefits to 2 organizations: Emergency Professional Services, Inc. (Seaman, OH) and Ohio Emergency Care Services Inc (OH). 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 William Collier's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for William Collier was last updated on December 29, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.
# William R Collier, MD · NPI 1811953730
Family Medicine physician in Marion, Ohio. Individual provider, active in the CMS NPPES registry since April 21, 2006.
## Identity
- **NPI:** 1811953730 (Entity type: Individual)
- **Enumerated:** April 21, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 35083497 (Ohio)
- **Sole proprietor:** No
## Practice location
- **Address:** 1000 MCKINLEY PARK DR, Marion, OH 43302-6399
- **Phone:** (740) 383-8728
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Emergency Professional Services, Inc. (NPI 1093762353, Seaman, OH); Ohio Emergency Care Services Inc (OH) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 29, 2022
- **Other identifiers:** Other P00217253 (OH); Other 000000384658 (OH); Other 000000545410 (OH); and 3 more
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Source: [NPI Profile](https://npiprofile.com/npi/1811953730) · Data from the CMS NPPES public registry.