Quick answers
- Which hospitals does Lawrence E. Klein work at?
- Medicare's official clinician data lists Lawrence E. Klein at 1 hospital: Sibley Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Lawrence E. Klein see patients?
- Medicare's clinician data lists 2 practice locations, including Washington, DC and Bethesda, MD. Call before your visit to confirm the address.
- What is Lawrence E. Klein's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Lawrence E. Klein accept Medicare assignment?
- Medicare's clinician data says Lawrence E. Klein may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Lawrence E. Klein?
- (202) 362-4467, as listed in official Medicare / NPI Registry data.
- What is Lawrence E. Klein's NPI number?
- 1477615680. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Lawrence E. Klein works
Medicare's Facility Affiliation Data lists Lawrence E. Klein at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Sibley Memorial HospitalWashington, DC · Acute Care Hospital · CCN 090005
Practice locations
Addresses where Lawrence E. Klein is enrolled with Medicare (CMS data updated 2026-10-02).
- 3301 New Mexico Ave NW, Suite 348Washington, DC 20016 (202) 362‑4467
- 6410 Rockledge Dr, Suite 600Bethesda, MD 20817
Group practices
Medicare enrollment lists Lawrence E. Klein as a member of these groups (CMS data updated 2026-10-02).
- Suburban/Nrh Medical Rehabilitation Inc941 clinicians in the group
- Foxhall Internists, PC8 clinicians in the group
Specialties
- Internal Medicineprimary
Find other Internal Medicine doctors in District of Columbia →
Other internal medicine doctors in Washington
Clinicians with the same Medicare primary specialty in Washington, DC — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Johns Hopkins University School Of Medicine |
| Graduation year | 1976 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1477615680 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- 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