CYNTHIA R. MERRILLS NP
NPI 1871067041
Nurse Practitioner - Family in Saginaw, MI
About Cynthia R. Merrills Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CYNTHIA R. MERRILLS NP (NPI 1871067041) is an individual family provider in Saginaw, Michigan, licensed in Michigan (4704190056) and active in the NPI registry since January 2019. She is enrolled in Medicare PECOS, is affiliated with Ascension St Mary's Hospital, and maintains a secondary practice location in Saginaw.
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
Cynthia R. Merrills 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
5Medicare enrollment records show Cynthia Merrills reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saginaw, MI 48604
- Reassigned Medicare billing, Michigan enrollment
- Also billed through NPI 1336637719 (Michigan)
- 7 clinicians in this Medicare group
Midland, MI 48640
- Reassigned Medicare billing, Michigan enrollment
- Also billed through NPI 1689623506 (Michigan)
- 197 clinicians in this Medicare group
Midland, MI 48670
- Reassigned Medicare billing, Michigan enrollment
- 536 clinicians in this Medicare group
Owosso, MI 48867
- Reassigned Medicare billing, Michigan enrollment
- 44 clinicians in this Medicare group
Grand Blanc, MI 48439
- Reassigned Medicare billing, Michigan enrollment
- 47 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ascension St Mary's Hospital
Acute Care Hospitals · Saginaw, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48604 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 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAGINAW, MI 48604
SAGINAW, MI 48604
SAGINAW, MI 48604
SAGINAW, MI 48604
SAGINAW, MI 48604
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 Cynthia Merrills's NPI number?
The NPI number for Cynthia Merrills is 1871067041. It was assigned to this individual provider in the NPPES registry on January 21, 2019.
Where is Cynthia Merrills located?
Cynthia Merrills practices at 4599 Towne Centre Rd, Saginaw, MI 48604. The listed phone number is (989) 839-1927.
What is Cynthia Merrills's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Cynthia Merrills enrolled in Medicare?
Yes. Cynthia Merrills 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 Cynthia Merrills's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cynthia Merrills reassigns Medicare benefits to 5 organizations: Dialysis Associates, P.C. (Saginaw, MI), Mymichigan Medical Group (Midland, MI), Mymichigan Medical Center Midland (Midland, MI), Prime Radiology Consultants P.C. (Owosso, MI) and Art Of Radiology Imaging Associates, PLLC (Grand Blanc, 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 Cynthia Merrills's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Cynthia Merrills accept?
Health plans from Priority Health list Cynthia Merrills 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 Cynthia Merrills affiliated with any hospitals?
According to CMS data, Cynthia Merrills is affiliated with Ascension St Mary's Hospital.
When was this NPI record last updated?
The NPPES record for Cynthia Merrills was last updated on September 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Cynthia R. Merrills, NP · NPI 1871067041
Family physician in Saginaw, Michigan. Individual provider, active in the CMS NPPES registry since January 21, 2019.
## Identity
- **NPI:** 1871067041 (Entity type: Individual)
- **Enumerated:** January 21, 2019
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 4704190056 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 4599 TOWNE CENTRE RD, Saginaw, MI 48604-2804
- **Phone:** (989) 839-1927
## 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): Dialysis Associates, P.C. (NPI 1467549618, Saginaw, MI); Mymichigan Medical Group (NPI 1568412948, Midland, MI); Mymichigan Medical Center Midland (NPI 1205889490, Midland, MI); Prime Radiology Consultants P.C. (NPI 1811723679, Owosso, MI); Art Of Radiology Imaging Associates, PLLC (NPI 1003571076, Grand Blanc, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** September 23, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1871067041) · Data from the CMS NPPES public registry.