MARY MARGARET KRZYSTOWCZYK NP
NPI 1912504978
Nurse Practitioner - Primary Care in Traverse City, MI
About Mary Margaret Krzystowczyk Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY MARGARET KRZYSTOWCZYK NP (NPI 1912504978) is an individual primary care provider in Traverse City, Michigan, licensed in Michigan (4704301134) and active in the NPI registry since October 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses 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
Mary Margaret Krzystowczyk Np 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
2Medicare enrollment records show Mary Krzystowczyk reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Traverse City, MI 49684
- Reassigned Medicare billing, Michigan enrollment
- 492 clinicians in this Medicare group
Ann Arbor, MI 48103
- Reassigned Medicare billing, Michigan enrollment
- 45 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49684 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.
TRAVERSE CITY, MI 49684
TRAVERSE CITY, MI 49684
TRAVERSE CITY, MI 49684
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 Mary Krzystowczyk's NPI number?
The NPI number for Mary Krzystowczyk is 1912504978. It was assigned to this individual provider in the NPPES registry on October 2, 2020.
Where is Mary Krzystowczyk located?
Mary Krzystowczyk practices at 1105 Sixth St, Traverse City, MI 49684. The listed phone number is (231) 935-5000.
What is Mary Krzystowczyk's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Primary Care, with taxonomy code 363LP2300X.
Is Mary Krzystowczyk enrolled in Medicare?
Yes. Mary Krzystowczyk 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 Mary Krzystowczyk's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Krzystowczyk reassigns Medicare benefits to 2 organizations: Munson Medical Center (Traverse City, MI) and Northstar Palliative Care Inc (Ann Arbor, 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 Mary Krzystowczyk's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Krzystowczyk 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 1 other insurer list Mary Krzystowczyk 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 Mary Krzystowczyk was last updated on July 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.
# Mary Margaret Krzystowczyk, NP · NPI 1912504978
Primary Care physician in Traverse City, Michigan. Individual provider, active in the CMS NPPES registry since October 2, 2020.
## Identity
- **NPI:** 1912504978 (Entity type: Individual)
- **Enumerated:** October 2, 2020
- **Primary specialty:** Nurse Practitioner - Primary Care · taxonomy 363LP2300X
- **State license:** 4704301134 (Michigan)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1105 SIXTH ST, Traverse City, MI 49684-2300
- **Phone:** (231) 935-5000
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Munson Medical Center (NPI 1205864220, Traverse City, MI); Northstar Palliative Care Inc (NPI 1033638077, Ann Arbor, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** July 16, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1912504978) · Data from the CMS NPPES public registry.