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DR. MICHAEL ANDREW STACK M.D.
NPI 1932146685
Family Medicine in Ithaca, MI

Active since June 01, 2006PECOS EnrolledAccepts Medicare Assignment
121 N PINE RIVER ST, ITHACA, MI 48847(989) 875-5111(989) 875-5023 Get Directions Write a Review

NPPES record last updated: September 6, 2012. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Michael Andrew Stack M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MICHAEL ANDREW STACK M.D. (NPI 1932146685) is an individual family medicine provider in Ithaca, Michigan, licensed in Michigan (4301064712) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Mymichigan Medical Center Alma, and is a graduate of Wayne State University School Of Medicine (1994).

NPPES Registry Identity

NPI1932146685
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDR. MICHAEL ANDREW STACKCredential: M.D.
Location Address121 N PINE RIVER STIthaca, MI 48847-1039
Mailing Address121 N Pine River StIthaca, MI 48847-1039 · (989) 875-5111 · Fax (989) 875-5023
Phone(989) 875-5111
Fax(989) 875-5023
Sole ProprietorYes
Medical School CMSWayne State University School Of MedicineGraduated 1994
Enumeration DateJune 1, 2006
Last NPPES UpdateSeptember 6, 2012
✔ NPI 1932146685 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in MI · 4301064712
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
121 N PINE RIVER ST, Ithaca, MI 48847
Open in Google Maps ↗

Other Identifiers 13

Other4424316MI · Molina
Medicare PINN55970001MI
Medicare OSCAR/certification233971MI
Other1005781MI · Mclaren
Medicare PIN080189744MI
Medicare PINM17400024MI
Other200000005888MI · Php Commercial
Medicare UPING53712MI
Other0802900531MI · Bcbsm
Other0802911901MI · Bcbsm
Other1008870MI · Mclaren
Medicaid4424316MI
Other0985726MI · Healthplus Commercial

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Priority Health.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 Andrew Stack 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.

PECOS PAC ID7911956701
PECOS Enrollment IDI20071105000087
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Michael Stack reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mymichigan Medical Center Alma
0.8 mi
Family Medicine
820 N PINE RIVER ST
Ithaca, MI 48847
  • Reassigned Medicare billing, Michigan enrollment
  • 258 clinicians in this Medicare group
NPI 1679506851 (989) 875-3722

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mymichigan Medical Center Alma

Acute Care Hospitals · Alma, MI
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230030
Location300 E Warwick DrAlma, MI 48801 · Gratiot County
Emergency services Birthing friendly

Mymichigan Medical Center Clare

Acute Care Hospitals · Clare, MI
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number230180
Location703 N Mcewan StClare, MI 48617 · Clare County

Sparrow Carson Hospital

Acute Care Hospitals · Carson City, MI
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number230208
Location406 East Elm StCarson City, MI 48811 · Montcalm County
Emergency services

Mymichigan Medical Center Midland

Acute Care Hospitals · Midland, MI
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number230222
Location4000 Wellness DriveMidland, MI 48670 · Midland County
Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48847 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$84.74 typical visit price
range $54.34 – $166.68
Typical copayment $21.18 (range $13.58 – $41.67)
Most-billed visit code 99203
Established Patient
$96.44 typical visit price
range $17.09 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 5

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
7 suppliers33 claims73 services$6.32 avg. paid by Medicare
Normal, low and high calibrator solution / chips A4256
DME-Other DME · category DE000N
3 suppliers11 claims11 services$2.69 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
5 suppliers21 claims23 services$1.09 avg. paid by Medicare
Nebulizer, with compressor E0570
DME-Other DME · category DE000N
3 suppliers14 claims14 services$7.13 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
4 suppliers35 claims35 services$110.58 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MATTHEW A STACK PA C
Physician Assistant
121 N PINE RIVER ST
ITHACA, MI 48847
Gratiot County (989) 287-0662
CORA J PAVLIK FNP
Nurse Practitioner (Family)
121 N PINE RIVER ST
ITHACA, MI 48847
Gratiot County (989) 875-5111
TRAUMA AND ADDICTION SOLUTIONS PLLC
Clinic/Center (Mental Health (Including Community Mental Health Center))
121 N PINE RIVER ST
ITHACA, MI 48847
Gratiot County (989) 287-0662
MICHAEL STACK MD PC
Clinic/Center (Rural Health)
121 N PINE RIVER ST
ITHACA, MI 48847
Gratiot County (989) 875-5111
MRS. ELIZABETH MARIE HACKERT-NEFF MA LPC
Counselor (Professional)
121 N PINE RIVER ST
ITHACA, MI 48847
Gratiot County (989) 875-5111
MYMICHIGAN MEDICAL CENTER ALMA
Clinic/Center (Rural Health)
121 N PINE RIVER ST
ITHACA, MI 48847
Gratiot County (989) 875-5111
AUBREE AKERS FNP
Nurse Practitioner (Family)
121 N PINE RIVER ST
ITHACA, MI 48847
Gratiot County (989) 875-5111

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 Stack's NPI number?

The NPI number for Michael Stack is 1932146685. It was assigned to this individual provider in the NPPES registry on June 1, 2006.

Where is Michael Stack located?

Michael Stack practices at 121 N Pine River St, Ithaca, MI 48847. The listed phone number is (989) 875-5111.

What is Michael Stack's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Michael Stack enrolled in Medicare?

Yes. Michael Stack 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 organization bills Medicare for Michael Stack's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Stack reassigns Medicare benefits to Mymichigan Medical Center Alma (Ithaca, MI). The 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 Stack's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Michael Stack accept?

Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Michael Stack 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 Stack affiliated with any hospitals?

According to CMS data, Michael Stack is affiliated with Mymichigan Medical Center Alma, Mymichigan Medical Center Clare, Sparrow Carson Hospital and Mymichigan Medical Center Midland.

When was this NPI record last updated?

The NPPES record for Michael Stack was last updated on September 6, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.