Quick answers
- Which hospitals does Katherine A. Maher work at?
- Medicare's official clinician data lists Katherine A. Maher at 1 hospital: Frederick Health Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Katherine A. Maher see patients?
- Medicare's clinician data lists 5 practice locations, including Frederick, MD, Wheaton, MD and Rockville, MD. Call before your visit to confirm the address.
- What is Katherine A. Maher's specialty?
- Medicare lists Rheumatology as the primary specialty.
- Does Katherine A. Maher accept Medicare assignment?
- Yes. Medicare's clinician data says Katherine A. Maher 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 Katherine A. Maher offer telehealth?
- Medicare's clinician data says Katherine A. Maher offers telehealth services. Ask the office which visits can be done by video or phone.
- What is Katherine A. Maher's NPI number?
- 1225353865. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Katherine A. Maher works
Medicare's Facility Affiliation Data lists Katherine A. Maher at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Frederick Health HospitalFrederick, MD · Acute Care Hospital · CCN 210005
Practice locations
Addresses where Katherine A. Maher is enrolled with Medicare (CMS data updated 2026-10-02).
- 161 Thomas Johnson Dr, Suite 250Frederick, MD 21702
- 187 Thomas Johnson DrFrederick, MD 21702
- 187 Thomas Johnson Dr, Suite 6Frederick, MD 21702
- 2730 University Blvd W, Suite 310Wheaton, MD 20902
- 7361 Calhoun Pl, Suite 600Rockville, MD 20855
Group practices
Medicare enrollment lists Katherine A. Maher as a member of these groups (CMS data updated 2026-10-02).
- Amber Hill Physical Therapy Inc334 clinicians in the group
- Arthritis and Rheumatism Associates PC50 clinicians in the group
Specialties
- Rheumatologyprimary
Other rheumatologists in Frederick
Clinicians with the same Medicare primary specialty in Frederick, MD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Georgetown University School Of Medicine |
| Graduation year | 2010 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1225353865 |
| 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