DR. ANDREW A HOLLATZ M.D.
NPI 1154525087
Anesthesiology in Duluth, MN
About Dr. Andrew A Hollatz M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ANDREW A HOLLATZ M.D. (NPI 1154525087) is an individual anesthesiology provider in Duluth, Minnesota, licensed in Minnesota (62901) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS, is affiliated with St Lukes Hospital, and maintains a secondary practice location in Madison.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Andrew A Hollatz M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Andrew Hollatz reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Duluth, MN 55805
- Reassigned Medicare billing, Minnesota and Wisconsin enrollments
- 513 clinicians in this Medicare group
Two Harbors, MN 55616
- Reassigned Medicare billing, Minnesota enrollment
- 95 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 14
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Lukes Hospital
Acute Care Hospitals · Duluth, MNOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Andrew Hollatz's NPI number?
The NPI number for Andrew Hollatz is 1154525087. It was assigned to this individual provider in the NPPES registry on June 13, 2007.
Where is Andrew Hollatz located?
Andrew Hollatz practices at 915 E 1st St, Duluth, MN 55805. The listed phone number is (218) 249-5352.
What is Andrew Hollatz's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Andrew Hollatz enrolled in Medicare?
Yes. Andrew Hollatz is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Andrew Hollatz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Hollatz reassigns Medicare benefits to 2 organizations: St. Luke's Hospital Of Duluth (Duluth, MN) and Lake View Memorial Hospital, Inc (Two Harbors, MN). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Andrew Hollatz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Andrew Hollatz affiliated with any hospitals?
According to CMS data, Andrew Hollatz is affiliated with St Lukes Hospital.
When was this NPI record last updated?
The NPPES record for Andrew Hollatz was last updated on December 4, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.