HARMONY ANN SIERENS M.D.
NPI 1326201252
Physical Medicine & Rehabilitation - Pediatric Rehabilitation Medicine in Grand Blanc, MI
About Harmony Ann Sierens M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HARMONY ANN SIERENS M.D. (NPI 1326201252) is an individual pediatric rehabilitation medicine provider in Grand Blanc, Michigan, licensed in Michigan (4301092154) and active in the NPI registry since July 2008. She is enrolled in Medicare PECOS, is affiliated with Ascension Genesys Hospital, and is a graduate of Wayne State University School Of Medicine (2008).
NPPES Registry Identity
Specialties & Licenses 2
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
Harmony Ann Sierens M.d. 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 Harmony Sierens reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Grand Blanc, MI 48439
- Reassigned Medicare billing, Michigan enrollment
- 7 clinicians in this Medicare group
Detroit, MI 48201
- Reassigned Medicare billing, Michigan enrollment
- 360 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 7
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.
Ascension Genesys Hospital
Acute Care Hospitals · Grand Blanc, MIMedicare 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
Referred Medical Equipment & Supplies CMS DME claims 14
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GRAND BLANC, MI 48439
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 Harmony Sierens's NPI number?
The NPI number for Harmony Sierens is 1326201252. It was assigned to this individual provider in the NPPES registry on July 10, 2008.
Where is Harmony Sierens located?
Harmony Sierens practices at 4632 Genesys Pkwy, Grand Blanc, MI 48439. The listed phone number is (810) 606-7181.
What is Harmony Sierens's specialty?
The primary specialty registered for this NPI is Physical Medicine & Rehabilitation, specializing in Pediatric Rehabilitation Medicine, with taxonomy code 2081P0010X.
Is Harmony Sierens enrolled in Medicare?
Yes. Harmony Sierens 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 Harmony Sierens's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Harmony Sierens reassigns Medicare benefits to 2 organizations: Medical Rehabilitation Group PC (Grand Blanc, MI) and University Pediatricians (Detroit, 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 Harmony Sierens's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Harmony Sierens 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 Harmony Sierens 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 Harmony Sierens affiliated with any hospitals?
According to CMS data, Harmony Sierens is affiliated with Ascension Genesys Hospital.
When was this NPI record last updated?
The NPPES record for Harmony Sierens was last updated on November 20, 2018. 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.