DR. MICHAEL D ALTER M.D.
NPI 1225072812
Internal Medicine - Pulmonary Disease in St. Paul, MN
About Dr. Michael D Alter M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MICHAEL D ALTER M.D. (NPI 1225072812) is an individual pulmonary disease provider in St. Paul, Minnesota, licensed in Minnesota (40442) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Lakeview Memorial Hospital, and is a graduate of University Of Toledo College Of Medicine (1994).
NPPES Registry Identity
Specialties & Licenses 4
Other Identifiers 13
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
Dr. Michael D Alter 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
3Medicare enrollment records show Michael Alter reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Paul, MN 55107
- Reassigned Medicare billing, Minnesota enrollment
- 2,274 clinicians in this Medicare group
Minneapolis, MN 55454
- Reassigned Medicare billing, Minnesota enrollment
- 4,038 clinicians in this Medicare group
Minneapolis, MN 55403
- Reassigned Medicare billing, Minnesota enrollment
- 2,527 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 11
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.
Lakeview Memorial Hospital
Acute Care Hospitals · Stillwater, MNRegions Hospital
Acute Care Hospitals · Saint Paul, MNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 55130 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 14
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ST. PAUL, MN 55130
ST. PAUL, MN 55130
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 Alter's NPI number?
The NPI number for Michael Alter is 1225072812. It was assigned to this individual provider in the NPPES registry on June 15, 2006.
Where is Michael Alter located?
Michael Alter practices at 401 Phalen Blvd - Ms 41102D Healthpartners Specialty Center 401, St. Paul, MN 55130. The listed phone number is (651) 254-7670.
What is Michael Alter's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is Michael Alter enrolled in Medicare?
Yes. Michael Alter 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 Alter's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Alter reassigns Medicare benefits to 3 organizations: Group Health, Inc. (Saint Paul, MN), Fairview Health Services (Minneapolis, MN) and Park Nicollet Clinic (Minneapolis, 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 Michael Alter's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Alter accept?
Health plans from HealthPartners list Michael Alter 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 Alter affiliated with any hospitals?
According to CMS data, Michael Alter is affiliated with Lakeview Memorial Hospital and Regions Hospital.
When was this NPI record last updated?
The NPPES record for Michael Alter was last updated on January 24, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Dr. Michael D Alter, M.D. · NPI 1225072812
Pulmonary Disease physician in St. Paul, Minnesota. Individual provider, active in the CMS NPPES registry since June 15, 2006.
## Identity
- **NPI:** 1225072812 (Entity type: Individual)
- **Enumerated:** June 15, 2006
- **Primary specialty:** Internal Medicine - Pulmonary Disease · taxonomy 207RP1001X
- **State license:** 40442 (Minnesota)
- **Sole proprietor:** No
## Practice location
- **Address:** 401 PHALEN BLVD - MS 41102D, HEALTHPARTNERS SPECIALTY CENTER 401, St. Paul, MN 55130-5302
- **Phone:** (651) 254-7670 · **Fax:** (651) 254-7676
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Group Health, Inc. (NPI 1801941943, Saint Paul, MN); Fairview Health Services (NPI 1316008212, Minneapolis, MN); Park Nicollet Clinic (NPI 1912315144, Minneapolis, MN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Toledo College Of Medicine, class of 1994
## Record status
- **NPPES last updated:** January 24, 2014
- **Other identifiers:** Other B700 (MN); Other 1019748 (MN); Other 48-00478 (MN); and 10 more
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Source: [NPI Profile](https://npiprofile.com/npi/1225072812) · Data from the CMS NPPES public registry.