Gennaro Marenga, PMHNP-BC
NPI 1447729058 · Psychiatric/Mental Health Nurse Practitioner · Frederick, MD
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gennaro Marenga, PMHNP-BC is a Psychiatric/Mental Health Nurse Practitioner provider in Frederick, MD (NPI 1447729058).
Provider details
- NPI number
- 1447729058
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PMHNP-BC
- Sex
- Male
- Sole proprietor
- No
- License
- 26NJ00878500 (NJ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
390 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 223 | $68 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 86 | $147 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 52 | $100 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 18 | $96 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 11 | $105 |
Typical Medicare-allowed amounts for these services range $68–$147 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (2)
- 1447 York Rd Ste 506Lutherville, MD 21093Phone: (410) 825-2282
- 1447 York Rd Ste 506Lutherville, MD 21093Phone: (757) 478-7008
Registry dates
- Enumerated
- 2018-11-13
- Last updated
- 2022-02-25
- Certified
- 2022-02-25
Frequently asked questions
- What is Gennaro Marenga's NPI number?
- Gennaro Marenga's National Provider Identifier (NPI) is 1447729058, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gennaro Marenga's specialty?
- Gennaro Marenga is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Gennaro Marenga located?
- Gennaro Marenga's practice location on file with NPPES is 400 W 7th St, Frederick, MD 21701-4506.
- What is Gennaro Marenga's phone number?
- The practice phone number listed in the NPPES registry for Gennaro Marenga is (240) 566-3990.
- Does Gennaro Marenga accept Medicare?
- Gennaro Marenga is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gennaro Marenga's NPI active?
- Yes — Gennaro Marenga's NPI (1447729058) is active in the NPPES registry as of the last update on 2022-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.