Quick answers
- Which hospitals does Isabelle A. Hertig work at?
- Medicare's official clinician data lists Isabelle A. Hertig at 2 hospitals: Adventist Healthcare Shady Grove Medical Center and Adventist Healthcare White Oak Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Isabelle A. Hertig see patients?
- Medicare's clinician data lists 1 practice location in Rockville, MD. Call before your visit to confirm the address.
- What is Isabelle A. Hertig's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Isabelle A. Hertig accept Medicare assignment?
- Yes. Medicare's clinician data says Isabelle A. Hertig 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 Isabelle A. Hertig?
- (240) 826-7578, as listed in official Medicare / NPI Registry data.
- What is Isabelle A. Hertig's NPI number?
- 1013127695. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Isabelle A. Hertig works
Medicare's Facility Affiliation Data lists Isabelle A. Hertig at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adventist Healthcare Shady Grove Medical CenterRockville, MD · Acute Care Hospital · CCN 210057
- Adventist Healthcare White Oak Medical CenterSilver Spring, MD · Acute Care Hospital · CCN 210016
Practice locations
Addresses where Isabelle A. Hertig is enrolled with Medicare (CMS data updated 2026-10-02).
- 9901 Medical Ctr DrRockville, MD 20850 (240) 826‑7578
Group practices
Medicare enrollment lists Isabelle A. Hertig as a member of this group (CMS data updated 2026-10-02).
- Usacs Critical Care Medicine Services East, LLC30 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Rockville
Clinicians with the same Medicare primary specialty in Rockville, MD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1983 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1013127695 |
| 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