IVAN RAFAEL MATOS DIAZ M.D.
NPI 1972859767
Psychiatry & Neurology - Neurology in Minneapolis, MN
About Ivan Rafael Matos Diaz M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
IVAN RAFAEL MATOS DIAZ M.D. (NPI 1972859767) is an individual neurology provider in Minneapolis, Minnesota, licensed in Minnesota (61825) and active in the NPI registry since July 2012. He is enrolled in Medicare PECOS, is affiliated with Allina United Hospital, and is a graduate of Other (2009).
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 and accepts Medicare assignment
Ivan Rafael Matos Diaz 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
11Medicare enrollment records show Ivan Matos Diaz reassigns Medicare billing to 11 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Minneapolis, MN 55407
- Reassigned Medicare billing, Minnesota and Wisconsin enrollments
- Also billed through NPI 1205069325 (Wisconsin)
- 3,733 clinicians in this Medicare group
Minneapolis, MN 55404
- Reassigned Medicare billing, Minnesota enrollment
- 1,247 clinicians in this Medicare group
Chanhassen, MN 55317
- Reassigned Medicare billing, Minnesota enrollment
- 581 clinicians in this Medicare group
Lakeville, MN 55044
- Reassigned Medicare billing, Minnesota enrollment
- 249 clinicians in this Medicare group
Osceola, WI 54020
- Reassigned Medicare billing, Wisconsin enrollment
- 170 clinicians in this Medicare group
Glencoe, MN 55336
- Reassigned Medicare billing, Minnesota enrollment
- 95 clinicians in this Medicare group
Le Sueur, MN 56058
- Reassigned Medicare billing, Minnesota enrollment
- 201 clinicians in this Medicare group
Arlington, MN 55307
- Reassigned Medicare billing, Minnesota enrollment
- 229 clinicians in this Medicare group
Grantsburg, WI 54840
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1356499784 (Wisconsin)
- 92 clinicians in this Medicare group
Brainerd, MN 56401
- Reassigned Medicare billing, Minnesota enrollment
- 127 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, MNSt Francis Regional Medical Center
Acute Care Hospitals · Shakopee, MNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 55407 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MINNEAPOLIS, MN 55407
MINNEAPOLIS, MN 55407
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 Ivan Matos Diaz's NPI number?
The NPI number for Ivan Matos Diaz is 1972859767. It was assigned to this individual provider in the NPPES registry on July 30, 2012.
Where is Ivan Matos Diaz located?
Ivan Matos Diaz practices at 800 E 28th St, Minneapolis, MN 55407. The listed phone number is (612) 863-3200.
What is Ivan Matos Diaz's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Ivan Matos Diaz enrolled in Medicare?
Yes. Ivan Matos Diaz 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 Ivan Matos Diaz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ivan Matos Diaz reassigns Medicare benefits to 11 organizations: Allina Health System (Minneapolis, MN), Hennepin Healthcare System, Inc (Minneapolis, MN), Ridgeview Medical Center (Chanhassen, MN), Northfield Hospital (Lakeville, MN), Ladd Memorial Hospital (Osceola, WI) and 6 more organizations, listed in the Medicare section above. 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 Ivan Matos Diaz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ivan Matos Diaz accept?
Health plans from HealthPartners and Security Health Plan list Ivan Matos Diaz 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 Ivan Matos Diaz affiliated with any hospitals?
According to CMS data, Ivan Matos Diaz is affiliated with Allina United Hospital, Abbott Northwestern Hospital and St Francis Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Ivan Matos Diaz was last updated on January 30, 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.
# Ivan Rafael Matos Diaz, M.D. · NPI 1972859767
Neurology physician in Minneapolis, Minnesota. Individual provider, active in the CMS NPPES registry since July 30, 2012.
## Identity
- **NPI:** 1972859767 (Entity type: Individual)
- **Enumerated:** July 30, 2012
- **Primary specialty:** Psychiatry & Neurology - Neurology · taxonomy 2084N0400X
- **State license:** 61825 (Minnesota)
- **Sole proprietor:** No
## Practice location
- **Address:** 800 E 28TH ST, Minneapolis, MN 55407-3723
- **Phone:** (612) 863-3200 · **Fax:** (612) 863-2837
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 11 organizations under Medicare reassignment (form CMS-855R): Allina Health System (NPI 1053354985, Minneapolis, MN); Hennepin Healthcare System, Inc (NPI 1962914333, Minneapolis, MN); Ridgeview Medical Center (NPI 1558142869, Chanhassen, MN); Northfield Hospital (NPI 1083046874, Lakeville, MN); Ladd Memorial Hospital (NPI 1467560227, Osceola, WI); and 6 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** January 30, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1972859767) · Data from the CMS NPPES public registry.