DR. MASSIMO GRISELLI MD MS FRCS
NPI 1659877181
Pediatrics - Pediatric Cardiology in Minneapolis, MN

Active since April 03, 2018PECOS Enrolled
UNIVERSITY OF MINNESOTA PHYSICIANS, 500 HARVARD STREET SE, MINNEAPOLIS, MN 55455(612) 884-0649(612) 676-8992 Get Directions Write a Review

NPPES record last updated: December 12, 2018. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Massimo Griselli Md Ms Frcs NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MASSIMO GRISELLI MD MS FRCS (NPI 1659877181) is an individual pediatric cardiology provider in Minneapolis, Minnesota, licensed in Minnesota (63854) and active in the NPI registry since April 2018. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1659877181
Entity TypeIndividualMale
Primary Taxonomy2080P0202X
Provider Legal NameDR. MASSIMO GRISELLICredential: MD MS FRCS
Location AddressUNIVERSITY OF MINNESOTA PHYSICIANS, 500 HARVARD STREET SEMinneapolis, MN 55455-0363
Mailing AddressUniversity Of Minnesota Physicians, 500 Harvard Street SeMinneapolis, MN 55455-0363 · (612) 884-0649 · Fax (612) 676-8992
Fax(612) 676-8992
Sole ProprietorNo
Enumeration DateApril 3, 2018
Last NPPES UpdateDecember 12, 2018
✔ NPI 1659877181 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric CardiologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0202X
License✔ Licensed in MN · 63854
Definition
A pediatric cardiologist provides comprehensive care to patients with cardiovascular problems. This specialist is skilled in selecting, performing and evaluating the structural and functional assessment of the heart and blood vessels, and the clinical evaluation of cardiovascular disease.
UNIVERSITY OF MINNESOTA PHYSICIANS, Minneapolis, MN 55455

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Massimo Griselli Md Ms Frcs is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Massimo Griselli reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Multi-Specialty
2312 S 6TH ST STE F105
Minneapolis, MN 55454
  • Reassigned Medicare billing, Minnesota enrollment
  • 3,633 clinicians in this Medicare group
General Acute Care Hospital
2450 RIVERSIDE AVE
Minneapolis, MN 55454
  • Reassigned Medicare billing, Minnesota enrollment
  • 4,038 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.

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.

Pediatrics (Pediatric Hematology-Oncology)
UNIVERSITY OF MINNESOTA PHYSICIANS, 516 DELAWARE STREET SE, PWB FOURTH FLOOR, ROOM 4-100
MINNEAPOLIS, MN 55455
Physician Assistant
UNIVERSITY OF MINNESOTA PHYSICIANS, 420 DELAWARE ST SE, MMC276
MINNEAPOLIS, MN 55455
Pediatrics (Pediatric Emergency Medicine)
UNIVERSITY OF MINNESOTA PHYSICIANS, 516 DELAWARE STREET SE, PWB FOURTH FLOOR, ROOM 4-100
MINNEAPOLIS, MN 55455
Internal Medicine (Hematology)
UNIVERSITY OF MINNESOTA PHYSICIANS, 516 DELAWARE STREET SE, SUITE 5-100, CLINIC 5B
MINNEAPOLIS, MN 55455
Nurse Practitioner (Adult Health)
UNIVERSITY OF MINNESOTA PHYSICIANS, 606 24TH AVENUE SOUTH, SUITE 500
MINNEAPOLIS, MN 55455
Physical Medicine & Rehabilitation
UNIVERSITY OF MINNESOTA PHYSICIANS, 516 DELAWARE STREET SE, PWB FIRST FLOOR, CLINIC 1A
MINNEAPOLIS, MN 55455
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
UNIVERSITY OF MINNESOTA PHYSICIANS, 516 DELAWARE STREET SE
MINNEAPOLIS, MN 55455
Surgery (Surgical Critical Care)
UNIVERSITY OF MINNESOTA PHYSICIANS, 516 DELAWARE STREET SE, PWB FIRST FLOOR, CLINIC 1E
MINNEAPOLIS, MN 55455

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 Massimo Griselli's NPI number?

The NPI number for Massimo Griselli is 1659877181. It was assigned to this individual provider in the NPPES registry on April 3, 2018.

Where is Massimo Griselli located?

Massimo Griselli practices at University Of Minnesota Physicians 500 Harvard Street SE, Minneapolis, MN 55455. The listed phone number is (612) 884-0649.

What is Massimo Griselli's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Cardiology, with taxonomy code 2080P0202X.

Is Massimo Griselli enrolled in Medicare?

Yes. Massimo Griselli is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Massimo Griselli's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Massimo Griselli reassigns Medicare benefits to 2 organizations: Fairview Express Care (Minneapolis, MN) and Fairview Health Services (Minneapolis, 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 Massimo Griselli's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Massimo Griselli was last updated on December 12, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.