SUSAN D ERNST MD
NPI 1720140023
Obstetrics & Gynecology in Ann Arbor, MI
About Susan D Ernst Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SUSAN D ERNST MD (NPI 1720140023) is an individual obstetrics & gynecology provider in Ann Arbor, Michigan, licensed in Michigan (4301061884) and active in the NPI registry since December 2006. She is enrolled in Medicare PECOS and is a graduate of University Of Michigan Medical School (1993).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 3
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
Susan D Ernst Md 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 Susan Ernst reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Ann Arbor, MI 48109
- Reassigned Medicare billing, Michigan enrollment
- 128 clinicians in this Medicare group
Ann Arbor, MI 48109
- Reassigned Medicare billing, Michigan enrollment
- 30 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48109 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.
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
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 Susan Ernst's NPI number?
The NPI number for Susan Ernst is 1720140023. It was assigned to this individual provider in the NPPES registry on December 14, 2006. The provider is also known as Susan Dwyer.
Where is Susan Ernst located?
Susan Ernst practices at 1500 East Medical Center Dr 9th Floor Recp B, Ann Arbor, MI 48109. The listed phone number is (734) 763-6295.
What is Susan Ernst's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Susan Ernst enrolled in Medicare?
Yes. Susan Ernst 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 Susan Ernst's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Susan Ernst reassigns Medicare benefits to 2 organizations: Regents Of The University Of Michigan (Ann Arbor, MI) and Regents Of The University Of Michigan-Uhs-University Health Ser (Ann Arbor, MI). 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 Susan Ernst's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Susan Ernst accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Susan Ernst 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.
When was this NPI record last updated?
The NPPES record for Susan Ernst was last updated on April 4, 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.
# Susan D Ernst, MD · NPI 1720140023
Obstetrics & Gynecology physician in Ann Arbor, Michigan. Individual provider, active in the CMS NPPES registry since December 14, 2006.
## Identity
- **NPI:** 1720140023 (Entity type: Individual)
- **Enumerated:** December 14, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 4301061884 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 1500 EAST MEDICAL CENTER DR, 9TH FLOOR RECP B, Ann Arbor, MI 48109-4276
- **Phone:** (734) 763-6295
## 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): Regents Of The University Of Michigan (NPI 1639104854, Ann Arbor, MI); Regents Of The University Of Michigan-Uhs-University Health Ser (NPI 1265610570, Ann Arbor, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Michigan Medical School, class of 1993
## Record status
- **NPPES last updated:** April 4, 2012
- **Other identifiers:** Medicare ID-Type Unspecified 0H16063107 (MI); Medicare UPIN G60144 (MI); Medicaid 4166070 (MI)
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Source: [NPI Profile](https://npiprofile.com/npi/1720140023) · Data from the CMS NPPES public registry.