JOSHUA J. WILLIAMS DO
NPI 1609122233
Family Medicine in Carroll, IA
About Joshua J. Williams Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOSHUA J. WILLIAMS DO (NPI 1609122233) is an individual family medicine provider in Carroll, Iowa, licensed in Iowa (DO04740) and active in the NPI registry since August 2012. He is enrolled in Medicare PECOS, is affiliated with Mary Greeley Medical Center, and is a graduate of Other (2012).
NPPES Registry Identity
Specialties & Licenses
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
Joshua J. Williams Do 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 Reassignment
Medicare enrollment records show Joshua Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Ames, IA 50010
- Reassigned Medicare billing, Iowa enrollment
- 331 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 52
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mary Greeley Medical Center
Acute Care Hospitals · Ames, IAAudubon County Memorial Hospital
Critical Access Hospitals · Audubon, IASt Luke's Hospital Bethlehem
Acute Care Hospitals · Bethlehem, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 51401 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 19
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 18
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 Joshua Williams's NPI number?
The NPI number for Joshua Williams is 1609122233. It was assigned to this individual provider in the NPPES registry on August 1, 2012.
Where is Joshua Williams located?
Joshua Williams practices at 1214 S Grant Rd, Carroll, IA 51401. The listed phone number is (712) 792-1500.
What is Joshua Williams's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Joshua Williams enrolled in Medicare?
Yes. Joshua Williams 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 organization bills Medicare for Joshua Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joshua Williams reassigns Medicare benefits to Mcfarland Clinic PC (Ames, IA). The 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 Joshua Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Joshua Williams accept?
Health plans from Wellmark Health Plan of Iowa, Inc. list Joshua Williams 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 Joshua Williams affiliated with any hospitals?
According to CMS data, Joshua Williams is affiliated with Mary Greeley Medical Center, Audubon County Memorial Hospital and St Luke's Hospital Bethlehem.
When was this NPI record last updated?
The NPPES record for Joshua Williams was last updated on November 20, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.