Mallory Groff
Psychiatric/Mental Health Nurse Practitioner · Hockessin, DE
Mallory Groff is a psychiatric/mental health nurse practitioner with a practice address in Hockessin, Delaware, and NPI 1255961959, issued on Jan 22, 2020. Check the license with the Delaware board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mallory Groff
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License numbers
- R48854 ND
161921 AK
9426584 FL
7531 MN
828441 NV
Self-reported in NPPES; status is on the state search - Practice location
- 724 Yorklyn RD Ste 250, Hockessin, DE 19707
- Phone
- (302) 215-2228
- Enumerated
- Jan 22, 2020
- Record last updated
- Jul 25, 2026
- Fax
- (302) 208-4943
- Medicare enrollment
- Enrolled (PECOS I20251229000213); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 273 in Delaware → Look up another NPI →
Also registered at 724 Yorklyn RD Ste 250
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Barbara Ridge, LCSWClinical Social Worker1871699025
Verify Mallory Groff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Delaware board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
27 Medicare Part D claims, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $242.13
8 payments; by number, the most common kind was food and beverage; the largest payer was Neurocrine Biosciences, Inc. The 23,362 providers of this specialty with any payment received $1,027.77 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Mallory Groff among 273 psychiatric/mental health nurse practitioner records in Delaware
Mallory Groff is one of 273 psychiatric/mental health nurse practitioner records with a practice address in Delaware. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 40% of them.
- NPI issued2020 · 40% of these records are older, 57% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2019 · median 2021 among the 172 with a school on file
- Record last updated2026 · 15% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatric/Mental Health Nurse Practitioner providers in Delaware
There are 273 psychiatric/mental health nurse practitioner records in Delaware.
All 273 in Delaware → Every provider in Hockessin → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Christine Hanna-Ronald, PMHNPHockessin, DE 197071629567557
- Bradley Why, FPMHNPNewark, DE 197071871821322
- Sarah Abugah, PMHNPMiddletown, DE 197091396457883
- Bernard Addogoh, DNP, PMHNP-BC, FNP-CMiddletown, DE 197091841534120
- Kingsley AyoolaMiddletown, DE 197091720628910
- Hilda Azefor, NPMiddletown, DE 197091477075844
- Jacqueline BoisMiddletown, DE 197091972153500
- Hallie Forsythe-Dennison, CRNPMiddletown, DE 197091568852358
Common questions
What is Mallory Groff's NPI number?
Mallory Groff's National Provider Identifier (NPI) is 1255961959, issued on Jan 22, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Mallory Groff located?
The NPPES record lists a practice address at 724 Yorklyn RD Ste 250, Hockessin, DE, 19707. Phone: (302) 215-2228. Providers update this record themselves, so call before visiting.
How can I verify Mallory Groff's license?
Search the Delaware board that licenses this profession; the NPPES record confirms identity only.
How much does Mallory Groff prescribe under Medicare Part D?
In 2024, Mallory Groff had 27 Medicare Part D claims; the average among psychiatric/mental health nurse practitioner prescribers was 906. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.