JACK MIZELLE MD
NPI 1629710157
Family Medicine in Mason City, IA
About Jack Mizelle Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JACK MIZELLE MD (NPI 1629710157) is an individual family medicine provider in Mason City, Iowa, licensed in Iowa (54186) and active in the NPI registry since April 2022. He is enrolled in Medicare PECOS, is affiliated with Mercyone North Iowa Medical Center, and is a graduate of Boston University School Of Medicine (2022).
NPPES Registry Identity
Specialties & Licenses 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 (PECOS)
Jack Mizelle Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
5Medicare enrollment records show Jack Mizelle reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mason City, IA 50401
- Reassigned Medicare billing, Iowa enrollment
- 420 clinicians in this Medicare group
New Hampton, IA 50659
- Reassigned Medicare billing, Iowa enrollment
- Also billed through NPI 1770651515 (Iowa)
- 46 clinicians in this Medicare group
Postville, IA 52162
- Reassigned Medicare billing, Iowa enrollment
- Also billed through NPI 1164599643 (Iowa)
- 89 clinicians in this Medicare group
Sac City, IA 50583
- Reassigned Medicare billing, Iowa enrollment
- Also billed through NPI 1144378621 (Iowa)
- 26 clinicians in this Medicare group
Cedar Rapids, IA 52403
- Reassigned Medicare billing, Iowa enrollment
- 153 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercyone North Iowa Medical Center
Acute Care Hospitals · Mason City, IALoring Hospital
Critical Access Hospitals · Sac City, IAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 50401 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
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 Jack Mizelle's NPI number?
The NPI number for Jack Mizelle is 1629710157. It was assigned to this individual provider in the NPPES registry on April 13, 2022.
Where is Jack Mizelle located?
Jack Mizelle practices at 1010 4th St SW Ste 240, Mason City, IA 50401. The listed phone number is (641) 428-7766.
What is Jack Mizelle's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Jack Mizelle enrolled in Medicare?
Yes. Jack Mizelle is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Jack Mizelle's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jack Mizelle reassigns Medicare benefits to 5 organizations: North Iowa Mercy Clinics (Mason City, IA), Mercy Medical Center - New Hampton (New Hampton, IA), Veterans Memorial Hospital City Of Waukon Ia (Postville, IA), Loring Hospital (Sac City, IA) and Cogent Healthcare Of Iowa, PC (Cedar Rapids, IA). 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 Jack Mizelle's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jack Mizelle accept?
Health plans from Medica and Wellmark Health Plan of Iowa, Inc. list Jack Mizelle 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 Jack Mizelle affiliated with any hospitals?
According to CMS data, Jack Mizelle is affiliated with Mercyone North Iowa Medical Center and Loring Hospital.
When was this NPI record last updated?
The NPPES record for Jack Mizelle was last updated on July 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.