MRS. CASSANDRA A. GUENTHARDT NP-C
NPI 1427729979
Nurse Practitioner - Family in Manistee, MI
About Mrs. Cassandra A. Guenthardt Np-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. CASSANDRA A. GUENTHARDT NP-C (NPI 1427729979) is an individual family provider in Manistee, Michigan, licensed in Michigan (4704257000) and active in the NPI registry since September 2021. She is enrolled in Medicare PECOS, is affiliated with Munson Healthcare Cadillac Hospital, and maintains a secondary practice location in Manistee.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 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
Mrs. Cassandra A. Guenthardt Np-c 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 Cassandra Guenthardt reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Manistee, MI 49660
- Reassigned Medicare billing, Michigan enrollment
- 55 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Munson Healthcare Cadillac Hospital
Acute Care Hospitals · Cadillac, MIMunson Healthcare Manistee Hospital
Acute Care Hospitals · Manistee, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49660 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.
MANISTEE, MI 49660
MANISTEE, MI 49660
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 Cassandra Guenthardt's NPI number?
The NPI number for Cassandra Guenthardt is 1427729979. It was assigned to this individual provider in the NPPES registry on September 24, 2021.
Where is Cassandra Guenthardt located?
Cassandra Guenthardt practices at 1293 E Parkdale Ave, Manistee, MI 49660. The listed phone number is (231) 398-1840.
What is Cassandra Guenthardt's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Cassandra Guenthardt enrolled in Medicare?
Yes. Cassandra Guenthardt 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 Cassandra Guenthardt's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cassandra Guenthardt reassigns Medicare benefits to Munson Healthcare Manistee Hospital (Manistee, 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 Cassandra Guenthardt's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Cassandra Guenthardt accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Cassandra Guenthardt 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 Cassandra Guenthardt affiliated with any hospitals?
According to CMS data, Cassandra Guenthardt is affiliated with Munson Healthcare Cadillac Hospital and Munson Healthcare Manistee Hospital.
When was this NPI record last updated?
The NPPES record for Cassandra Guenthardt was last updated on October 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 days 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.
# Mrs. Cassandra A. Guenthardt, NP-C · NPI 1427729979
Family physician in Manistee, Michigan. Individual provider, active in the CMS NPPES registry since September 24, 2021.
## Identity
- **NPI:** 1427729979 (Entity type: Individual)
- **Enumerated:** September 24, 2021
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 4704257000 (Michigan)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1293 E PARKDALE AVE, Manistee, MI 49660-8904
- **Phone:** (231) 398-1840 · **Fax:** (231) 398-1835
## 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:** Munson Healthcare Manistee Hospital (NPI 1851753032, Manistee, MI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** October 14, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1427729979) · Data from the CMS NPPES public registry.