DR. MICHAEL TING GRASSI MD
NPI 1093276941
Pediatrics - Pediatric Critical Care Medicine in Iowa City, IA

Q: What is Michael Grassi's NPI number?

The NPI number for Michael Grassi is 1093276941. It was assigned to this individual provider in the NPPES registry on March 25, 2019.

Q: What is Michael Grassi's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Critical Care Medicine, with taxonomy code 2080P0203X.

Q: When was this NPI record last updated?

The NPPES record for Michael Grassi was last updated on April 6, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.

Active since March 25, 2019PECOS EnrolledAccepts Medicare Assignment

200 HAWKINS DR, IOWA CITY, IA 52242(319) 467-8561(319) 356-8443 Get Directions Write a Review

NPPES record last updated: April 6, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Dr. Michael Ting Grassi Md NPPES

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

DR. MICHAEL TING GRASSI MD (NPI 1093276941) is an individual pediatric critical care medicine provider in Iowa City, Iowa, licensed in Iowa (49536) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS and is a graduate of University Of Oklahoma College Of Medicine (2019).

NPPES Registry Identity

NPI1093276941

Entity TypeIndividualMale

Primary Taxonomy2080P0203X

Provider Legal NameDR. MICHAEL TING GRASSICredential: MD

Location Address200 HAWKINS DRIowa City, IA 52242-1009

Mailing Address200 Hawkins DrIowa City, IA 52242-1009 · (319) 467-8561 · Fax (319) 356-8443

Phone(319) 467-8561

Fax(319) 356-8443

Sole ProprietorYes

Medical School CMSUniversity Of Oklahoma College Of MedicineGraduated 2019

Enumeration DateMarch 25, 2019

Last NPPES UpdateApril 6, 2022

NPPES CertifiedApril 6, 2022

✔ NPI 1093276941 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric Critical Care MedicineAllopathic & Osteopathic Physicians

Taxonomy Code2080P0203X

License✔ Licensed in IA · 49536

Definition

A pediatrician expert in advanced life support for children from the term or near-term neonate to the adolescent. This competence extends to the critical care management of life-threatening organ system failure from any cause in both medical and surgical patients and to the support of vital physiological functions. This specialist may have administrative responsibilities for intensive care units and also facilitates patient care among other specialists.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

200 HAWKINS DR, Iowa City, IA 52242

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Oklahoma, Mending Health.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. Michael Ting Grassi 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.

PECOS PAC ID8820323371

PECOS Enrollment IDI20250827003025

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 Reassignment

Medicare enrollment records show Michael Grassi reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Ou Health Partners, Inc

534 mi

Multi-Specialty

1200 CHILDRENS AVE STE 11200
Oklahoma City, OK 73104

Reassigned Medicare billing, Oklahoma enrollment
1,795 clinicians in this Medicare group

NPI 1528642642 (405) 271-3932

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.

SANGIL LEE M.D.

Emergency Medicine

200 HAWKINS DR
IOWA CITY, IA 52242

Johnson County (319) 356-2233

RAMI G. EL ABIAD M.D.

Internal Medicine (Gastroenterology)

200 HAWKINS DR
IOWA CITY, IA 52242

Johnson County (319) 356-4901

GRERK SUTAMTEWAGUL MD

Internal Medicine (Hematology & Oncology)

200 HAWKINS DR, DEPT OF INTERNAL MEDICINE
IOWA CITY, IA 52242

Johnson County (319) 356-1616

DR. KALEB TANNER VEIT D.O.

Internal Medicine (Critical Care Medicine)

200 HAWKINS DR
IOWA CITY, IA 52242

Johnson County (319) 356-2320

OMAR JABER M.D

Chronic Disease Hospital

200 HAWKINS DR
IOWA CITY, IA 52242

Johnson County (319) 471-8958

JENNIFER MANCUSO MS, CGC

Genetic Counselor, MS

200 HAWKINS DR, 31663 PFP
IOWA CITY, IA 52242

Johnson County (319) 384-7983

ASHLEY KAISER M.D.

Obstetrics & Gynecology

200 HAWKINS DR, DEPT OF OBGYN
IOWA CITY, IA 52242

Johnson County (319) 356-2294

MRS. NANCY JANE MILLICE

Health Educator

200 HAWKINS DR, 0733 JPP
IOWA CITY, IA 52242

Johnson County (319) 356-3825

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 1093276941. It was assigned to this individual provider in the NPPES registry on March 25, 2019.

Where is Michael Grassi located?

Michael Grassi practices at 200 Hawkins Dr, Iowa City, IA 52242. The listed phone number is (319) 467-8561.

What is Michael Grassi's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Critical Care Medicine, with taxonomy code 2080P0203X.

Is Michael Grassi enrolled in Medicare?

Yes. Michael Grassi 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 organization bills Medicare for Michael Grassi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Grassi reassigns Medicare benefits to Ou Health Partners, Inc (Oklahoma City, OK). The 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 Blue Cross and Blue Shield of Oklahoma and Mending Health 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 April 6, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.