Quick answers
- Which hospitals does Maria L. Lao work at?
- Medicare's official clinician data lists Maria L. Lao at 4 hospitals: Knoxville Hospital & Clinics, Mahaska Health Partnership, MercyOne Des Moines Medical Center and Pella Regional Health Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Maria L. Lao see patients?
- Medicare's clinician data lists 1 practice location in Pella, IA. Call before your visit to confirm the address.
- What is Maria L. Lao's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Maria L. Lao accept Medicare assignment?
- Yes. Medicare's clinician data says Maria L. Lao 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 Maria L. Lao?
- (641) 628-3832, as listed in official Medicare / NPI Registry data.
- What is Maria L. Lao's NPI number?
- 1801851498. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Maria L. Lao works
Medicare's Facility Affiliation Data lists Maria L. Lao at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Knoxville Hospital & ClinicsKnoxville, IA · Critical Access Hospital · CCN 161355
- Mahaska Health PartnershipOskaloosa, IA · Critical Access Hospital · CCN 161379
- MercyOne Des Moines Medical CenterDes Moines, IA · Acute Care Hospital · CCN 160083
- Pella Regional Health CenterPella, IA · Critical Access Hospital · CCN 161367
Practice locations
Addresses where Maria L. Lao is enrolled with Medicare (CMS data updated 2026-10-02).
- 405 Monroe StPella, IA 50219 (641) 628‑3832
Group practices
Medicare enrollment lists Maria L. Lao as a member of this group (CMS data updated 2026-10-02).
- Pella Regional Health Center98 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Pella
Clinicians with the same Medicare primary specialty in Pella, IA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Wisconsin School Of Medicine |
| Graduation year | 1998 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1801851498 |
| 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