MRS. HEIDY NICOLE MERIUS N.P.
NPI 1881074615
Nurse Practitioner - Adult Health in Smithtown, NY
About Mrs. Heidy Nicole Merius N.p. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. HEIDY NICOLE MERIUS N.P. (NPI 1881074615) is an individual adult health provider in Smithtown, New York, licensed in New York (308871) and active in the NPI registry since June 2015. She is enrolled in Medicare PECOS, maintains a secondary practice location in Smithtown, and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Location 1
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. Heidy Nicole Merius N.p. 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 Heidy Merius reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Stony Brook, NY 11794
- Reassigned Medicare billing, New York enrollment
- 59 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11787 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.
Referred Medical Equipment & Supplies CMS DME claims 12
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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Heidy Merius's NPI number?
The NPI number for Heidy Merius is 1881074615. It was assigned to this individual provider in the NPPES registry on June 6, 2015. The provider is also known as Ms. Heidy Nicole Thomas R.N..
Where is Heidy Merius located?
Heidy Merius practices at 240 Middle Country Rd Suite A, Smithtown, NY 11787. The listed phone number is (631) 444-2500.
What is Heidy Merius's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.
Is Heidy Merius enrolled in Medicare?
Yes. Heidy Merius 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 Heidy Merius's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Heidy Merius reassigns Medicare benefits to Neurology Associates Of Stony Brook, University Faculty Practice Corpo (Stony Brook, NY). 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 Heidy Merius's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Heidy Merius was last updated on September 30, 2019. 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.
# Mrs. Heidy Nicole Merius, N.P. · NPI 1881074615
Adult Health physician in Smithtown, New York. Individual provider, active in the CMS NPPES registry since June 6, 2015.
## Identity
- **NPI:** 1881074615 (Entity type: Individual)
- **Enumerated:** June 6, 2015
- **Primary specialty:** Nurse Practitioner - Adult Health · taxonomy 363LA2200X
- **State license:** 308871 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 240 MIDDLE COUNTRY RD, SUITE A, Smithtown, NY 11787
- **Phone:** (631) 444-2500
## 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:** Neurology Associates Of Stony Brook, University Faculty Practice Corpo (NPI 1699720888, Stony Brook, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** September 30, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1881074615) · Data from the CMS NPPES public registry.