ALEXANDER THOMAS CLARK MD
NPI 1033793237
Emergency Medicine in Ann Arbor, MI
About Alexander Thomas Clark Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDER THOMAS CLARK MD (NPI 1033793237) is an individual emergency medicine provider in Ann Arbor, Michigan, licensed in Michigan (4301511059) and active in the NPI registry since May 2021. He is enrolled in Medicare PECOS, is affiliated with University Of Michigan Health System, and is a graduate of University Of Pittsburgh School Of Medicine (2021).
NPPES Registry Identity
Specialties & Licenses 2
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
Alexander Thomas Clark 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 Reassignment
Medicare enrollment records show Alexander Clark reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Ann Arbor, MI 48109
- Reassigned Medicare billing, Michigan enrollment
- 2,377 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of Michigan Health System
Acute Care Hospitals · Ann Arbor, MIPhysician 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
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 Alexander Clark's NPI number?
The NPI number for Alexander Clark is 1033793237. It was assigned to this individual provider in the NPPES registry on May 12, 2021.
Where is Alexander Clark located?
Alexander Clark practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The listed phone number is (615) 936-1160.
What is Alexander Clark's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Alexander Clark enrolled in Medicare?
Yes. Alexander Clark 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 Alexander Clark's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Clark reassigns Medicare benefits to Regents Of The University Of Michigan (Ann Arbor, 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 Alexander Clark's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alexander Clark accept?
Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Alexander Clark 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 Alexander Clark affiliated with any hospitals?
According to CMS data, Alexander Clark is affiliated with University Of Michigan Health System.
When was this NPI record last updated?
The NPPES record for Alexander Clark was last updated on August 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Alexander Thomas Clark, MD · NPI 1033793237
Emergency Medicine physician in Ann Arbor, Michigan. Individual provider, active in the CMS NPPES registry since May 12, 2021.
## Identity
- **NPI:** 1033793237 (Entity type: Individual)
- **Enumerated:** May 12, 2021
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 4301511059 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 1500 E MEDICAL CENTER DR, Ann Arbor, MI 48109-5000
- **Phone:** (615) 936-1160
## 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:** Regents Of The University Of Michigan (NPI 1003848144, Ann Arbor, MI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Pittsburgh School Of Medicine, class of 2021
## Record status
- **NPPES last updated:** August 4, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1033793237) · Data from the CMS NPPES public registry.