Quick answers
- Where does Patrick Lester D. Ong see patients?
- Medicare's clinician data lists 4 practice locations, including Eldersburg, MD, Laurel, MD and Clinton, MD. Call before your visit to confirm the address.
- What is Patrick Lester D. Ong's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Patrick Lester D. Ong accept Medicare assignment?
- Yes. Medicare's clinician data says Patrick Lester D. Ong accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Patrick Lester D. Ong?
- (410) 617-9129, as listed in official Medicare / NPI Registry data.
- What is Patrick Lester D. Ong's NPI number?
- 1538974563. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Patrick Lester D. Ong is enrolled with Medicare (CMS data updated 2026-10-02).
- 1211 Liberty RdEldersburg, MD 21784 (410) 617‑9129
- 14421 Baltimore AveLaurel, MD 20707 (240) 786‑6684
- 8825 Woodyard Rd, Suite 100Clinton, MD 20735 (240) 746‑1330
- 9550 Livingston Rd, Suite 102Fort Washington, MD 20744 (240) 253‑6312
Group practices
Medicare enrollment lists Patrick Lester D. Ong as a member of this group (CMS data updated 2026-10-02).
- CRH MD Management LLC71 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Eldersburg
Clinicians with the same Medicare primary specialty in Eldersburg, MD — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2024 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1538974563 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians