Patrick Lester Ong
NPI 1538974563 · Nurse Practitioner · Fort Washington, MD
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Patrick Lester Ong is a Nurse Practitioner provider in Fort Washington, MD (NPI 1538974563).
Provider details
- NPI number
- 1538974563
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- R271503 (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 tenure38% of score
1 yr in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2025-02-07
- Last updated
- 2025-07-03
- Certified
- 2025-07-03
Frequently asked questions
- What is Patrick Lester Ong's NPI number?
- Patrick Lester Ong's National Provider Identifier (NPI) is 1538974563, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Patrick Lester Ong's specialty?
- Patrick Lester Ong is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Patrick Lester Ong located?
- Patrick Lester Ong's practice location on file with NPPES is 9550 Livingston Rd Ste 102, Fort Washington, MD 20744-4975.
- What is Patrick Lester Ong's phone number?
- The practice phone number listed in the NPPES registry for Patrick Lester Ong is (240) 253-6312.
- Does Patrick Lester Ong accept Medicare?
- Patrick Lester Ong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Patrick Lester Ong's NPI active?
- Yes — Patrick Lester Ong's NPI (1538974563) is active in the NPPES registry as of the last update on 2025-07-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.