Quick answers
- Which hospitals does Louisa Ziglar work at?
- Medicare's official clinician data lists Louisa Ziglar at 1 hospital: Frederick Health Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Louisa Ziglar see patients?
- Medicare's clinician data lists 7 practice locations, including Frederick, MD, Washington, DC and Wheaton, MD. Call before your visit to confirm the address.
- What is Louisa Ziglar's specialty?
- Medicare lists Rheumatology as the primary specialty.
- Does Louisa Ziglar accept Medicare assignment?
- Yes. Medicare's clinician data says Louisa Ziglar 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 Louisa Ziglar offer telehealth?
- Medicare's clinician data says Louisa Ziglar offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Louisa Ziglar?
- (240) 215-6310, as listed in official Medicare / NPI Registry data.
- What is Louisa Ziglar's NPI number?
- 1538336151. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Louisa Ziglar works
Medicare's Facility Affiliation Data lists Louisa Ziglar 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 Louisa Ziglar is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 161 Thomas Johnson Dr, Suite 250Frederick, MD 21702
- 187 Thomas Johnson DrFrederick, MD 21702
- 187 Thomas Johnson Dr, Suite 6Frederick, MD 21702
- 2021 K St NW, Suite 300Washington, DC 20006
- 2730 University Blvd W, Suite 310Wheaton, MD 20902
Group practices
Medicare enrollment lists Louisa Ziglar as a member of these groups (CMS data updated 2026-10-02).
- Amber Hill Physical Therapy Inc334 clinicians in the group
- Frederick Health Hospital Inc127 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 | State University Of New York Downstate Medical Center |
| Graduation year | 2002 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1538336151 |
| 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