TAMMY MARIE CASTLES FNP-BC
NPI 1295517373
Family Medicine in Hackettstown, NJ
About Tammy Marie Castles Fnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TAMMY MARIE CASTLES FNP-BC (NPI 1295517373) is an individual family medicine provider in Hackettstown, New Jersey, licensed in New Jersey (26NJ14936600) and active in the NPI registry since October 2023. She is enrolled in Medicare PECOS, is affiliated with Hackettstown Medical Center, and is a graduate of Other (2023).
NPPES Registry Identity
Specialties & Licenses 3
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
Tammy Marie Castles Fnp-bc 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 Tammy Castles reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Bernardsville, NJ 07924
- Reassigned Medicare billing, New Jersey enrollment
- 103 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 2
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.
Hackettstown Medical Center
Acute Care Hospitals · Hackettstown, NJPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 07840 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 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HACKETTSTOWN, NJ 07840
HACKETTSTOWN, NJ 07840
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 Tammy Castles's NPI number?
The NPI number for Tammy Castles is 1295517373. It was assigned to this individual provider in the NPPES registry on October 16, 2023.
Where is Tammy Castles located?
Tammy Castles practices at 254B Mountain Ave Ste 100, Hackettstown, NJ 07840. The listed phone number is (908) 852-6400.
What is Tammy Castles's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Tammy Castles enrolled in Medicare?
Yes. Tammy Castles 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 Tammy Castles's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tammy Castles reassigns Medicare benefits to Primary Care Partners, LLC (Bernardsville, 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 Tammy Castles's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Tammy Castles accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Tammy Castles 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 Tammy Castles affiliated with any hospitals?
According to CMS data, Tammy Castles is affiliated with Hackettstown Medical Center.
When was this NPI record last updated?
The NPPES record for Tammy Castles was last updated on December 21, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Tammy Marie Castles, FNP-BC · NPI 1295517373
Family Medicine physician in Hackettstown, New Jersey. Individual provider, active in the CMS NPPES registry since October 16, 2023.
## Identity
- **NPI:** 1295517373 (Entity type: Individual)
- **Enumerated:** October 16, 2023
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 26NJ14936600 (New Jersey)
- **Sole proprietor:** No
## Practice location
- **Address:** 254B MOUNTAIN AVE STE 100, Hackettstown, NJ 07840-2413
- **Phone:** (908) 852-6400
## 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:** Primary Care Partners, LLC (NPI 1366722175, Bernardsville, NJ), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** December 21, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1295517373) · Data from the CMS NPPES public registry.