MALLORY GROFF
NPI 1255961959
Nurse Practitioner - Psychiatric/Mental Health in Hockessin, DE
About Mallory Groff NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MALLORY GROFF (NPI 1255961959) is an individual psychiatric/mental health provider in Hockessin, Delaware, licensed in North Dakota (R48854) and active in the NPI registry since January 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mallory Groff 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19707 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 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HOCKESSIN, DE 19707
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 Mallory Groff's NPI number?
The NPI number for Mallory Groff is 1255961959. It was assigned to this individual provider in the NPPES registry on January 22, 2020. The provider is also known as Mallory Hodgkinson Mallory Martha.
Where is Mallory Groff located?
Mallory Groff practices at 724 Yorklyn Rd Ste 250, Hockessin, DE 19707. The listed phone number is (302) 215-2228.
What is Mallory Groff's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Mallory Groff enrolled in Medicare?
Yes. Mallory Groff 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.
What insurance does Mallory Groff accept?
Health plans from Highmark Blue Cross Blue Shield Delaware list Mallory Groff 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.
When was this NPI record last updated?
The NPPES record for Mallory Groff was last updated on July 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days 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.
# Mallory Groff · NPI 1255961959
Psychiatric/Mental Health physician in Hockessin, Delaware. Individual provider, active in the CMS NPPES registry since January 22, 2020.
## Identity
- **NPI:** 1255961959 (Entity type: Individual)
- **Enumerated:** January 22, 2020
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** R48854 (North Dakota)
- **Sole proprietor:** No
## Practice location
- **Address:** 724 YORKLYN RD STE 250, Hockessin, DE 19707-8736
- **Phone:** (302) 215-2228 · **Fax:** (302) 208-4943
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** July 25, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1255961959) · Data from the CMS NPPES public registry.