Quick answers
- Where does Larry S. Harper see patients?
- Medicare's clinician data lists 2 practice locations, including Frederick, MD and Greenbelt, MD. Call before your visit to confirm the address.
- What is Larry S. Harper's specialty?
- Medicare lists Clinical Social Worker as the primary specialty.
- Does Larry S. Harper accept Medicare assignment?
- Yes. Medicare's clinician data says Larry S. Harper 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.
- Does Larry S. Harper offer telehealth?
- Medicare's clinician data says Larry S. Harper offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Larry S. Harper?
- (301) 245-6300, as listed in official Medicare / NPI Registry data.
- What is Larry S. Harper's NPI number?
- 1881620789. 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 Larry S. Harper is enrolled with Medicare (CMS data updated 2026-10-02).
- 1003 W 7th St, Suite 200Frederick, MD 21701 (301) 245‑6300
- 7474 Greenway Ctr Dr, Suite 700aGreenbelt, MD 20770 (301) 982‑3437
Group practices
Medicare enrollment lists Larry S. Harper as a member of this group (CMS data updated 2026-10-02).
- Lifespan Behavioral Health Services PC29 clinicians in the group
Specialties
- Clinical Social Workerprimary
Other clinical social workers in Frederick
Clinicians with the same Medicare primary specialty in Frederick, MD — not a recommendation.
Clinician information
| Credential | CSW |
|---|---|
| Graduation year | 1976 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1881620789 |
| 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