KATHRYN M GROSSMAN MD
NPI 1780658146
Internal Medicine in Kalamazoo, MI
About Kathryn M Grossman Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATHRYN M GROSSMAN MD (NPI 1780658146) is an individual internal medicine provider in Kalamazoo, Michigan, licensed in Michigan (4301080105) and active in the NPI registry since February 2006. She is enrolled in Medicare PECOS, is affiliated with Bronson Methodist Hospital, and maintains a secondary practice location in Vicksburg.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 2
Group Practice 1
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
Kathryn M Grossman 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 Reassignments
5Medicare enrollment records show Kathryn Grossman reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Kalamazoo, MI 49007
- Reassigned Medicare billing, Michigan enrollment
- 1,133 clinicians in this Medicare group
Kalamazoo, MI 49048
- Reassigned Medicare billing, Michigan enrollment
- 247 clinicians in this Medicare group
Kalamazoo, MI 49048
- Reassigned Medicare billing, Michigan enrollment
- 596 clinicians in this Medicare group
Brighton, MI 48114
- Reassigned Medicare billing, Michigan enrollment
- 383 clinicians in this Medicare group
Novi, MI 48375
- Reassigned Medicare billing, Michigan enrollment
- 169 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Bronson Methodist Hospital
Acute Care Hospitals · Kalamazoo, MIBronson Battle Creek Hospital
Acute Care Hospitals · Battle Creek, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49007 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.
Reported Quality Measures
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.
KALAMAZOO, MI 49007
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 Kathryn Grossman's NPI number?
The NPI number for Kathryn Grossman is 1780658146. It was assigned to this individual provider in the NPPES registry on February 14, 2006.
Where is Kathryn Grossman located?
Kathryn Grossman practices at 601 John St, Kalamazoo, MI 49007. The listed phone number is (269) 341-8481.
What is Kathryn Grossman's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Kathryn Grossman enrolled in Medicare?
Yes. Kathryn Grossman 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 Kathryn Grossman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kathryn Grossman reassigns Medicare benefits to 5 organizations: Bronson Methodist Hospital (Kalamazoo, MI), Ascension Borgess Hospital (Kalamazoo, MI), Sound Inpatient Physicians-Michigan, PLLC (Kalamazoo, MI), Theoria Medical (Brighton, MI) and Complexcare Medical Group Midwest H PLLC (Novi, MI). 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 Kathryn Grossman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Kathryn Grossman accept?
Health plans from Priority Health list Kathryn Grossman 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 Kathryn Grossman affiliated with any hospitals?
According to CMS data, Kathryn Grossman is affiliated with Bronson Methodist Hospital and Bronson Battle Creek Hospital.
When was this NPI record last updated?
The NPPES record for Kathryn Grossman was last updated on November 27, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Kathryn M Grossman, MD · NPI 1780658146
Internal Medicine physician in Kalamazoo, Michigan. Individual provider, active in the CMS NPPES registry since February 14, 2006.
## Identity
- **NPI:** 1780658146 (Entity type: Individual)
- **Enumerated:** February 14, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 4301080105 (Michigan)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 601 JOHN ST, Kalamazoo, MI 49007
- **Phone:** (269) 341-8481
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Bronson Methodist Hospital (NPI 1417961137, Kalamazoo, MI); Ascension Borgess Hospital (NPI 1336279827, Kalamazoo, MI); Sound Inpatient Physicians-Michigan, PLLC (NPI 1093967861, Kalamazoo, MI); Theoria Medical (NPI 1164186946, Brighton, MI); Complexcare Medical Group Midwest H PLLC (NPI 1457144933, Novi, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Wayne State University School Of Medicine, class of 2002
## Record status
- **NPPES last updated:** November 27, 2023
- **Other identifiers:** Medicaid 4893119 (MI); Other CA2184 (MI)
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Source: [NPI Profile](https://npiprofile.com/npi/1780658146) · Data from the CMS NPPES public registry.