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Obstetrics/Gynecology

Alison L. Mall, MD

Works at hospitals in Louisville, CO · Columbus, WI · Colorado, Wisconsin

Summary

Alison L. Mall, MD (Obstetrics/Gynecology) is listed by Medicare at 2 hospitals in Louisville, CO and Columbus, WI. NPI 1891773149. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Alison L. Mall, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Obstetrics/GynecologyPrimary specialty
YesAccepts Medicare assignment
29Years since medical school (graduated 1997)
University Of California, Irvine, California College Of MedicineMedical school
FemaleGender (as listed)
Portercare Adventist Health SystemGroup practice

Quick answers

Which hospitals does Alison L. Mall work at?
Medicare's official clinician data lists Alison L. Mall at 2 hospitals: AdventHealth Avista and Columbus Community Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Alison L. Mall see patients?
Medicare's clinician data lists 3 practice locations, including Denver, CO, Erie, CO and Louisville, CO. Call before your visit to confirm the address.
What is Alison L. Mall's specialty?
Medicare lists Obstetrics/Gynecology as the primary specialty.
Does Alison L. Mall accept Medicare assignment?
Yes. Medicare's clinician data says Alison L. Mall 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 Alison L. Mall?
(303) 778-5797, as listed in official Medicare / NPI Registry data.
What is Alison L. Mall's NPI number?
1891773149. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Alison L. Mall works

Medicare's Facility Affiliation Data lists Alison L. Mall at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Alison L. Mall is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Alison L. Mall as a member of this group (CMS data updated 2026-10-02).

  • Portercare Adventist Health System774 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Colorado →

Other OB-GYNs in Denver

Clinicians with the same Medicare primary specialty in Denver, CO — not a recommendation.

All OB-GYNs in Denver →

Clinician information

CredentialMD
Medical schoolUniversity Of California, Irvine, California College Of Medicine
Graduation year1997
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1891773149
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians