Quick answers
- Where does Grettel S. Collins see patients?
- Medicare's clinician data lists 2 practice locations, including Bethesda, MD and Germantown, MD. Call before your visit to confirm the address.
- What is Grettel S. Collins's specialty?
- Medicare lists Physical Therapist in Private Practice as the primary specialty.
- Does Grettel S. Collins accept Medicare assignment?
- Yes. Medicare's clinician data says Grettel S. Collins 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 Grettel S. Collins?
- (301) 530-1010, as listed in official Medicare / NPI Registry data.
- What is Grettel S. Collins's NPI number?
- 1649297664. 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 Grettel S. Collins is enrolled with Medicare (CMS data updated 2026-10-02).
- 10215 Fernwood Rd, Suite 506Bethesda, MD 20817 (301) 530‑1010
- 19735 Germantown Rd, Suite 120Germantown, MD 20874 (301) 530‑1010
Group practices
Medicare enrollment lists Grettel S. Collins as a member of this group (CMS data updated 2026-10-02).
- Bethesda Chevy Chase Orthopaedic Associates, LLC134 clinicians in the group
Specialties
Find other clinicians: Physical Therapist in Private Practice, Maryland →
Other physical therapists in Bethesda
Clinicians with the same Medicare primary specialty in Bethesda, MD — not a recommendation.
Clinician information
| Credential | PT |
|---|---|
| Graduation year | 2000 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1649297664 |
| 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