Quick answers
- Which hospitals does Amy Tien work at?
- Medicare's official clinician data lists Amy Tien at 1 hospital: Holy Cross Germantown Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Amy Tien see patients?
- Medicare's clinician data lists 2 practice locations, including Silver Spring, MD and Germantown, MD. Call before your visit to confirm the address.
- What is Amy Tien's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Amy Tien accept Medicare assignment?
- Yes. Medicare's clinician data says Amy Tien 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 Amy Tien?
- (301) 754-7000, as listed in official Medicare / NPI Registry data.
- What is Amy Tien's NPI number?
- 1437987294. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Amy Tien works
Medicare's Facility Affiliation Data lists Amy Tien at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Holy Cross Germantown HospitalGermantown, MD · Acute Care Hospital · CCN 210065
Practice locations
Addresses where Amy Tien is enrolled with Medicare (CMS data updated 2026-10-02).
- 1500 Forest Glen RdSilver Spring, MD 20910 (301) 754‑7000
- 19801 Observation DrGermantown, MD 20876 (301) 557‑6000
Group practices
Medicare enrollment lists Amy Tien as a member of this group (CMS data updated 2026-10-02).
- Professional Services of Holy Cross158 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Silver Spring
Clinicians with the same Medicare primary specialty in Silver Spring, MD — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2024 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1437987294 |
| 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