JOSEPH HENRY HAMM MD
NPI 1568419638
Family Medicine in St James, MN
About Joseph Henry Hamm Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOSEPH HENRY HAMM MD (NPI 1568419638) is an individual family medicine provider in St James, Minnesota, licensed in Minnesota (39056) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Sanford Westbrook Medical Center, and is a graduate of Sanford School Of Medicine Of University Of South Dakota (1989).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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
Joseph Henry Hamm Md 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
4Medicare enrollment records show Joseph Hamm reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint James, MN 56081
- Reassigned Medicare billing, Minnesota enrollment
- Also billed through NPI 1023177730 (Minnesota)
- 390 clinicians in this Medicare group
Mountain Lake, MN 56159
- Reassigned Medicare billing, Minnesota enrollment
- Also billed through NPI 1942253547 (Minnesota), NPI 1003851171 (Minnesota)
- 279 clinicians in this Medicare group
Fairmont, MN 56031
- Reassigned Medicare billing, Minnesota enrollment
- 806 clinicians in this Medicare group
Mankato, MN 56001
- Reassigned Medicare billing, Minnesota enrollment
- 1,572 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 7
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.
Sanford Westbrook Medical Center
Critical Access Hospitals · Westbrook, MNSanford Tracy Medical Center
Critical Access Hospitals · Tracy, MNMayo Clinic Health System St. James
Critical Access Hospitals · St James, MNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 56081 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 5
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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ST JAMES, MN 56081
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 Joseph Hamm's NPI number?
The NPI number for Joseph Hamm is 1568419638. It was assigned to this individual provider in the NPPES registry on May 27, 2006.
Where is Joseph Hamm located?
Joseph Hamm practices at 1101 Moulton And Parsons Drive, St James, MN 56081. The listed phone number is (507) 375-3391.
What is Joseph Hamm's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Joseph Hamm enrolled in Medicare?
Yes. Joseph Hamm 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 Joseph Hamm's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Hamm reassigns Medicare benefits to 4 organizations: Mayo Clinic Health System-St James (Saint James, MN), Sanford Health Network (Mountain Lake, MN), Mayo Clinic Health System-Fairmont (Fairmont, MN) and Mayo Clinic Health System-Southwest Minnesota Region (Mankato, MN). 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 Joseph Hamm's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Joseph Hamm accept?
Health plans from Sanford Health Plan list Joseph Hamm 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 Joseph Hamm affiliated with any hospitals?
According to CMS data, Joseph Hamm is affiliated with Sanford Westbrook Medical Center, Sanford Tracy Medical Center and Mayo Clinic Health System St. James.
When was this NPI record last updated?
The NPPES record for Joseph Hamm was last updated on February 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.