DR. KATHERINE MARIA TONTILLO MD
NPI 1245681873
Psychiatry & Neurology - Psychiatry in Grand Rapids, MI
About Dr. Katherine Maria Tontillo Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KATHERINE MARIA TONTILLO MD (NPI 1245681873) is an individual psychiatry provider in Grand Rapids, Michigan, licensed in Michigan (4351036679) and active in the NPI registry since June 2016. She is enrolled in Medicare PECOS, is affiliated with University Of Michigan Health - West, and is a graduate of Other (2016).
NPPES Registry Identity
Specialties & Licenses
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. Katherine Maria Tontillo 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.
Medicare Billing Reassignment
Medicare enrollment records show Katherine Tontillo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Grand Rapids, MI 49548
- Reassigned Medicare billing, Michigan enrollment
- 147 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 3
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of Michigan Health - West
Acute Care Hospitals · Wyoming, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49548 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Katherine Tontillo's NPI number?
The NPI number for Katherine Tontillo is 1245681873. It was assigned to this individual provider in the NPPES registry on June 24, 2016.
Where is Katherine Tontillo located?
Katherine Tontillo practices at 300 68th St SE, Grand Rapids, MI 49548. The listed phone number is (616) 455-5000.
What is Katherine Tontillo's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Katherine Tontillo enrolled in Medicare?
Yes. Katherine Tontillo 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 Katherine Tontillo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Tontillo reassigns Medicare benefits to Pine Rest Christian Mental Health Services (Grand Rapids, MI). 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 Katherine Tontillo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Katherine Tontillo accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 4 other insurers list Katherine Tontillo 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 Katherine Tontillo affiliated with any hospitals?
According to CMS data, Katherine Tontillo is affiliated with University Of Michigan Health - West.
When was this NPI record last updated?
The NPPES record for Katherine Tontillo was last updated on February 26, 2019. 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.
# Dr. Katherine Maria Tontillo, MD · NPI 1245681873
Psychiatry physician in Grand Rapids, Michigan. Individual provider, active in the CMS NPPES registry since June 24, 2016.
## Identity
- **NPI:** 1245681873 (Entity type: Individual)
- **Enumerated:** June 24, 2016
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** 4351036679 (Michigan)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 300 68TH ST SE, Grand Rapids, MI 49548-6927
- **Phone:** (616) 455-5000
## 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:** Pine Rest Christian Mental Health Services (NPI 1700894623, Grand Rapids, MI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** February 26, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1245681873) · Data from the CMS NPPES public registry.