MRS. KATHRYN M SEMMELROCK AGPCNP
NPI 1245756808
Nurse Practitioner - Adult Health in Hackensack, NJ
About Mrs. Kathryn M Semmelrock Agpcnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. KATHRYN M SEMMELROCK AGPCNP (NPI 1245756808) is an individual adult health provider in Hackensack, New Jersey, licensed in New Jersey (26NJ01049100) and active in the NPI registry since August 2017. She is enrolled in Medicare PECOS, is affiliated with White Plains Hospital Center, and maintains a secondary practice location in White Plains.
NPPES Registry Identity
Specialties & Licenses
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
Mrs. Kathryn M Semmelrock Agpcnp 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 Kathryn Semmelrock reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
White Plains, NY 10601
- Reassigned Medicare billing, New York enrollment
- 445 clinicians in this Medicare group
Red Bank, NJ 07701
- Reassigned Medicare billing, New Jersey enrollment
- 2,844 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.
White Plains Hospital Center
Acute Care Hospitals · White Plains, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 07601 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.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HACKENSACK, NJ 07601
HACKENSACK, NJ 07601
HACKENSACK, NJ 07601
HACKENSACK, NJ 07601
HACKENSACK, NJ 07601
HACKENSACK, NJ 07601
HACKENSACK, NJ 07601
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 Kathryn Semmelrock's NPI number?
The NPI number for Kathryn Semmelrock is 1245756808. It was assigned to this individual provider in the NPPES registry on August 16, 2017.
Where is Kathryn Semmelrock located?
Kathryn Semmelrock practices at 20 Prospect Ave, Hackensack, NJ 07601. The listed phone number is (551) 996-4424.
What is Kathryn Semmelrock's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.
Is Kathryn Semmelrock enrolled in Medicare?
Yes. Kathryn Semmelrock 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 Kathryn Semmelrock's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kathryn Semmelrock reassigns Medicare benefits to 2 organizations: White Plains Physician Services PC (White Plains, NY) and Hackensack Meridian Health Medical Group - Specialty Care PC (Red Bank, NJ). 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 Kathryn Semmelrock's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Kathryn Semmelrock accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Kathryn Semmelrock 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 Kathryn Semmelrock affiliated with any hospitals?
According to CMS data, Kathryn Semmelrock is affiliated with White Plains Hospital Center.
When was this NPI record last updated?
The NPPES record for Kathryn Semmelrock was last updated on February 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Mrs. Kathryn M Semmelrock, AGPCNP · NPI 1245756808
Adult Health physician in Hackensack, New Jersey. Individual provider, active in the CMS NPPES registry since August 16, 2017.
## Identity
- **NPI:** 1245756808 (Entity type: Individual)
- **Enumerated:** August 16, 2017
- **Primary specialty:** Nurse Practitioner - Adult Health · taxonomy 363LA2200X
- **State license:** 26NJ01049100 (New Jersey)
- **Sole proprietor:** No
## Practice location
- **Address:** 20 PROSPECT AVE, Hackensack, NJ 07601-1997
- **Phone:** (551) 996-4424 · **Fax:** (551) 996-0831
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): White Plains Physician Services PC (NPI 1124502687, White Plains, NY); Hackensack Meridian Health Medical Group - Specialty Care PC (NPI 1215989249, Red Bank, NJ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** February 9, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1245756808) · Data from the CMS NPPES public registry.