Quick answers
- Which hospitals does Anna A. Klass work at?
- Medicare's official clinician data lists Anna A. Klass at 1 hospital: Mercy Hospital St Louis. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Anna A. Klass see patients?
- Medicare's clinician data lists 1 practice location in Saint Peters, MO. Call before your visit to confirm the address.
- What is Anna A. Klass's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Anna A. Klass accept Medicare assignment?
- Yes. Medicare's clinician data says Anna A. Klass 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 Anna A. Klass offer telehealth?
- Medicare's clinician data says Anna A. Klass offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Anna A. Klass?
- (636) 939-0648, as listed in official Medicare / NPI Registry data.
- What is Anna A. Klass's NPI number?
- 1043898505. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Anna A. Klass works
Medicare's Facility Affiliation Data lists Anna A. Klass at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Hospital St LouisSaint Louis, MO · Acute Care Hospital · CCN 260020
Practice locations
Addresses where Anna A. Klass is enrolled with Medicare (CMS data updated 2026-10-02).
- 107 Piper Hill Dr, Suite 100Saint Peters, MO 63376 (636) 939‑0648
Group practices
Medicare enrollment lists Anna A. Klass as a member of this group (CMS data updated 2026-10-02).
- Mercy Clinic East Communities571 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Saint Peters
Clinicians with the same Medicare primary specialty in Saint Peters, MO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2021 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1043898505 |
| 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