Doctor profile · Federal record

Dr. Gennaro Marenga, PMHNP-BC

Psychiatric/Mental Health Nurse Practitioner (CMS: Nurse Practitioner) · Psychiatric/Mental Health Nurse Practitioner · Frederick, MD

  • NPI 1447729058
  • Accepts Medicare
  • MIPS 80.3 / 100 · 2023
  • 8 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
400 W 7Th St
Frederick, MD 217014506
(240) 566-3990
Additional location
1447 York RD Ste 506
Lutherville, MD 21093
(410) 825-2282
Mailing address
Po Box 37086
Baltimore, MD 212973086

Credentials & registration

NPPES · NUCC
NPI registered
November 2018 — 8 yrs on file
Profile last updated
February 25, 2022
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
363LP0808X — NUCC code
State licenses (2)
Maryland #R238002 · New Jersey #26NJ00878500

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1447729058. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
279
Distinct HCPCS
5
Medicare allowed
$28,711
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 126 55 $68
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 87 80 $149
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 29 17 $101
99239 Hospital discharge day management, more than 30 minutes 22 20 $98
90792 Psychiatric diagnostic evaluation with medical services 15 15 $146

In context: peer comparison

Among 8 peers in this city , average services per provider: 103. This provider delivers 2.7× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Gennaro Marenga's medical specialty?
Dr. Gennaro Marenga practices Psychiatric/Mental Health Nurse Practitioner in Frederick, MD.
Where does Dr. Gennaro Marenga practice?
Dr. Gennaro Marenga practices at 400 W 7Th St, Frederick, MD 217014506. Office phone: 2405663990.
What is Dr. Gennaro Marenga's NPI?
Dr. Gennaro Marenga's National Provider Identifier (NPI) is 1447729058, issued by NPPES.
Does Dr. Gennaro Marenga accept Medicare assignment?
Yes. Dr. Gennaro Marenga accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gennaro Marenga commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.