MICHAEL EMANUEL AUSTER DO
NPI 1164929451
Internal Medicine - Hematology & Oncology in South Portland, ME
About Michael Emanuel Auster Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL EMANUEL AUSTER DO (NPI 1164929451) is an individual hematology & oncology provider in South Portland, Maine, licensed in Maine (DO3773) and active in the NPI registry since April 2018. He is enrolled in Medicare PECOS, is affiliated with Maine Medical Center, and maintains a secondary practice location in North Conway.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Accepted Insurance
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
Michael Emanuel Auster Do 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 Michael Auster reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
South Portland, ME 04106
- Reassigned Medicare billing, Maine enrollment
- 3,140 clinicians in this Medicare group
North Conway, NH 03860
- Reassigned Medicare billing, New Hampshire enrollment
- 173 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
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Maine Medical Center
Acute Care Hospitals · Portland, MEMemorial Hospital, The
Critical Access Hospitals · North Conway, NHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04106 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SOUTH PORTLAND, ME 04106
SOUTH PORTLAND, ME 04106
SOUTH PORTLAND, ME 04106
SOUTH PORTLAND, ME 04106
SOUTH PORTLAND, ME 04106
SOUTH PORTLAND, ME 04106
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 Michael Auster's NPI number?
The NPI number for Michael Auster is 1164929451. It was assigned to this individual provider in the NPPES registry on April 12, 2018.
Where is Michael Auster located?
Michael Auster practices at 265 Western Ave Ste 2, South Portland, ME 04106. The listed phone number is (207) 661-0200.
What is Michael Auster's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Michael Auster enrolled in Medicare?
Yes. Michael Auster 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 Michael Auster's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Auster reassigns Medicare benefits to 2 organizations: Mainehealth (South Portland, ME) and The Memorial Hospital (North Conway, NH). 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 Michael Auster's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Auster accept?
Health plans from Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and Taro Health list Michael Auster as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Michael Auster affiliated with any hospitals?
According to CMS data, Michael Auster is affiliated with Maine Medical Center and Memorial Hospital, The.
When was this NPI record last updated?
The NPPES record for Michael Auster was last updated on May 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months 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.
# Michael Emanuel Auster, DO · NPI 1164929451
Hematology & Oncology physician in South Portland, Maine. Individual provider, active in the CMS NPPES registry since April 12, 2018.
## Identity
- **NPI:** 1164929451 (Entity type: Individual)
- **Enumerated:** April 12, 2018
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** DO3773 (Maine)
- **Sole proprietor:** No
## Practice location
- **Address:** 265 WESTERN AVE STE 2, South Portland, ME 04106-2458
- **Phone:** (207) 661-0200
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Mainehealth (NPI 1679887400, South Portland, ME); The Memorial Hospital (NPI 1366421141, North Conway, NH) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** May 27, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1164929451) · Data from the CMS NPPES public registry.