MARY MARGARET BELDING
NPI 1639677875
Nurse Practitioner - Psychiatric/Mental Health in Union, NJ
About Mary Margaret Belding NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY MARGARET BELDING (NPI 1639677875) is an individual psychiatric/mental health provider in Union, New Jersey, licensed in New Jersey (26NJ00781700) and active in the NPI registry since January 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2015).
NPPES Registry Identity
Specialties & Licenses
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 Belding 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 Mary Belding reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chatham, NJ 07928
- Reassigned Medicare billing, New Jersey enrollment
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 07083 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.
UNION, NJ 07083
UNION, NJ 07083
UNION, NJ 07083
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 Belding's NPI number?
The NPI number for Mary Belding is 1639677875. It was assigned to this individual provider in the NPPES registry on January 23, 2018.
Where is Mary Belding located?
Mary Belding practices at 2780 Morris Ave, Union, NJ 07083. The listed phone number is (908) 481-5050.
What is Mary Belding's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Mary Belding enrolled in Medicare?
Yes. Mary Belding 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 Mary Belding's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Belding reassigns Medicare benefits to Mary M Belding Apn LLC (Chatham, NJ). 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 Mary Belding'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 Mary Belding was last updated on January 23, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Mary Margaret Belding · NPI 1639677875
Psychiatric/Mental Health physician in Union, New Jersey. Individual provider, active in the CMS NPPES registry since January 23, 2018.
## Identity
- **NPI:** 1639677875 (Entity type: Individual)
- **Enumerated:** January 23, 2018
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** 26NJ00781700 (New Jersey)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2780 MORRIS AVE, Union, NJ 07083-4852
- **Phone:** (908) 481-5050
## 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:** Mary M Belding Apn LLC (NPI 1548115421, Chatham, NJ), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** January 23, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1639677875) · Data from the CMS NPPES public registry.