DR. JOSEPH W LEACH M.D.
NPI 1922083336
Internal Medicine - Medical Oncology in Maple Grove, MN
About Dr. Joseph W Leach M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOSEPH W LEACH M.D. (NPI 1922083336) is an individual medical oncology provider in Maple Grove, Minnesota, licensed in Minnesota (41971) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, is affiliated with Allina United Hospital, and maintains a secondary practice location in Minneapolis.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Dr. Joseph W Leach M.d. 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
3Medicare enrollment records show Joseph Leach reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Maple Grove, MN 55369
- Reassigned Medicare billing, Minnesota enrollment
- 3,633 clinicians in this Medicare group
Maple Grove, MN 55369
- Reassigned Medicare billing, Minnesota enrollment
- 3,733 clinicians in this Medicare group
Roseville, MN 55113
- Reassigned Medicare billing, Minnesota enrollment
- 2,361 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 4
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.
Allina United Hospital
Acute Care Hospitals · Saint Paul, MNAbbott Northwestern Hospital
Acute Care Hospitals · Minneapolis, MNAllina Health Faribault Medical Center
Acute Care Hospitals · Faribault, MNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 55369 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MAPLE GROVE, MN 55369
MAPLE GROVE, MN 55369
MAPLE GROVE, MN 55369
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 Leach's NPI number?
The NPI number for Joseph Leach is 1922083336. It was assigned to this individual provider in the NPPES registry on December 8, 2005.
Where is Joseph Leach located?
Joseph Leach practices at 14500 99th Ave N Ste 100, Maple Grove, MN 55369. The listed phone number is (763) 898-1000.
What is Joseph Leach's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.
Is Joseph Leach enrolled in Medicare?
Yes. Joseph Leach 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 Leach's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Leach reassigns Medicare benefits to 3 organizations: Fairview Express Care (Maple Grove, MN), Allina Health System (Maple Grove, MN) and Healtheast Medical Research Institute (Roseville, 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 Leach's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Joseph Leach accept?
Health plans from HealthPartners list Joseph Leach 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 Leach affiliated with any hospitals?
According to CMS data, Joseph Leach is affiliated with Allina United Hospital, Abbott Northwestern Hospital and Allina Health Faribault Medical Center.
When was this NPI record last updated?
The NPPES record for Joseph Leach was last updated on February 29, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.