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DR. MICHAEL GRASSI M.D.
NPI 1952340143
Internal Medicine in Robbinsdale, MN

Active since June 05, 2006PECOS Enrolled
3300 OAKDALE AVE N, ROBBINSDALE, MN 55422(763) 581-6560(763) 581-4771 Get Directions Write a Review

NPPES record last updated: January 23, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Michael Grassi M.d. NPPES

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

DR. MICHAEL GRASSI M.D. (NPI 1952340143) is an individual internal medicine provider in Robbinsdale, Minnesota, licensed in Minnesota (62868) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in Hinsdale.

NPPES Registry Identity

NPI1952340143
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. MICHAEL GRASSICredential: M.D.
Location Address3300 OAKDALE AVE NRobbinsdale, MN 55422-2926
Mailing Address3300 Oakdale Ave NRobbinsdale, MN 55422-2926 · (763) 581-6560 · Fax (763) 581-4771
Phone(763) 581-6560
Fax(763) 581-4771
Sole ProprietorYes
Enumeration DateJune 5, 2006
Last NPPES UpdateJanuary 23, 2018
✔ NPI 1952340143 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in MN · 62868✔ Licensed in IL · 036068517
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
3300 OAKDALE AVE N, Robbinsdale, MN 55422
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Secondary Practice Location 1

Location 115 Salt Creek Ln, Suite 111Hinsdale, IL 60521-2926 · Phone (630) 371-0133 ext. 102 · Fax (630) 371-0138

Other Identifiers 1

Medicaid036068517IL

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Michael Grassi M.d. 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

3

Medicare enrollment records show Michael Grassi reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Rockford Health Physicians
283 mi
Anesthesiology
2400 N ROCKTON AVE
Rockford, IL 61103
  • Reassigned Medicare billing, Illinois enrollment
  • 1,375 clinicians in this Medicare group
NPI 1023275278 (815) 971-5000
Sound Physicians Of Illinois, LLC
457 mi
Hospitalist
12303 DE PAUL DR
Bridgeton, MO 63044
  • Reassigned Medicare billing, Illinois enrollment
  • 419 clinicians in this Medicare group
NPI 1043598865 (314) 344-6000
Comprehensive Hospitalists Of Ms, LLC
761 mi
Hospitalist
1970 HOSPITAL DR
Clarksdale, MS 38614
  • Reassigned Medicare billing, Mississippi enrollment
  • 170 clinicians in this Medicare group
NPI 1710371679 (662) 627-3211

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 55422 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$127.61 typical visit price
range $56.00 – $168.28
Typical copayment $31.90 (range $14.00 – $42.07)
Most-billed visit code 99204
Established Patient
$98.61 typical visit price
range $18.32 – $138.04
Typical copayment $24.65 (range $4.58 – $34.51)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

MICHAELA ANNE MCLAIN FNP
Nurse Practitioner (Family)
3300 OAKDALE AVE N
ROBBINSDALE, MN 55422
Hennepin County (763) 520-5110
ALYSSA WARDEN DO
Physical Medicine & Rehabilitation
3300 OAKDALE AVE N
ROBBINSDALE, MN 55422
Hennepin County (763) 520-5200
ABDULAZIZ GABOW MBBS
Family Medicine
3300 OAKDALE AVE N
ROBBINSDALE, MN 55422
Hennepin County (763) 520-5200
WILLIAM NATHAN LISBERG MD
Radiology (Diagnostic Radiology)
3300 OAKDALE AVE N
ROBBINSDALE, MN 55422
Hennepin County (763) 559-2171
DR. LAURA L SCHMITZ MD
Pathology (Anatomic Pathology & Clinical Pathology)
3300 OAKDALE AVE N
MINNEAPOLIS, MN 55422
Hennepin County (763) 581-4150
DR. MARY DELLING MCLAURIN MD
Internal Medicine (Cardiovascular Disease)
3300 OAKDALE AVE N, #200
MINNEAPOLIS, MN 55422
Hennepin County (763) 520-2001
DR. ALOK MAHESHWARI MD
Internal Medicine (Interventional Cardiology)
3300 OAKDALE AVE N
ROBBINSDALE, MN 55422
Hennepin County (763) 581-5400
MS. TINA MARIE ALLENBURG NURSE PRACTITIONER
Nurse Practitioner
3300 OAKDALE AVE N, SUITE 200
MINNEAPOLIS, MN 55422
Hennepin County (763) 520-2000

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 Michael Grassi's NPI number?

The NPI number for Michael Grassi is 1952340143. It was assigned to this individual provider in the NPPES registry on June 5, 2006.

Where is Michael Grassi located?

Michael Grassi practices at 3300 Oakdale Ave N, Robbinsdale, MN 55422. The listed phone number is (763) 581-6560.

What is Michael Grassi's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Michael Grassi enrolled in Medicare?

Yes. Michael Grassi is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Michael Grassi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Grassi reassigns Medicare benefits to 3 organizations: Rockford Health Physicians (Rockford, IL), Sound Physicians Of Illinois, LLC (Bridgeton, MO) and Comprehensive Hospitalists Of Ms, LLC (Clarksdale, MS). 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 Michael Grassi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Michael Grassi accept?

Health plans from Anthem Blue Cross and Blue Shield list Michael Grassi 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.

When was this NPI record last updated?

The NPPES record for Michael Grassi was last updated on January 23, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.