Leslie Ngong-Nassah, NURSE PRACTITIONER
NPI 1265200950 · Psychiatric/Mental Health Nurse Practitioner · Beltsville, MD
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leslie Ngong-Nassah, NURSE PRACTITIONER is a Psychiatric/Mental Health Nurse Practitioner provider in Beltsville, MD (NPI 1265200950).
Provider details
- NPI number
- 1265200950
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NURSE PRACTITIONER
- Sex
- Male
- Sole proprietor
- No
- License
- R215510 (MD)
Specialties & taxonomies
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
2 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
157 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 67 | $120 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 66 | $66 |
| Group Psychotherapy90853 | 12 | $25 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 12 | $207 |
Typical Medicare-allowed amounts for these services range $25–$207 (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
Registry dates
- Enumerated
- 2023-12-13
- Last updated
- 2024-01-22
- Certified
- 2024-01-22
Frequently asked questions
- What is Leslie Ngong-Nassah's NPI number?
- Leslie Ngong-Nassah's National Provider Identifier (NPI) is 1265200950, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leslie Ngong-Nassah's specialty?
- Leslie Ngong-Nassah is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Leslie Ngong-Nassah located?
- Leslie Ngong-Nassah's practice location on file with NPPES is 12401 Brickyard Blvd Apt 2106, Beltsville, MD 20705-1636.
- What is Leslie Ngong-Nassah's phone number?
- The practice phone number listed in the NPPES registry for Leslie Ngong-Nassah is (240) 374-8280.
- Does Leslie Ngong-Nassah accept Medicare?
- Leslie Ngong-Nassah is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leslie Ngong-Nassah's NPI active?
- Yes — Leslie Ngong-Nassah's NPI (1265200950) is active in the NPPES registry as of the last update on 2024-01-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.