BARBARA HAMILTON M.D.
NPI 1508123696
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Ann Arbor, MI
About Barbara Hamilton M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BARBARA HAMILTON M.D. (NPI 1508123696) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Ann Arbor, Michigan, licensed in Michigan (4301507097) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS, is affiliated with University Of Michigan Health System, and is a graduate of Other (2012).
NPPES Registry Identity
Specialties & Licenses
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
Barbara Hamilton 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
5Medicare enrollment records show Barbara Hamilton reassigns Medicare billing to 5 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
- 2,377 clinicians in this Medicare group
Mason, MI 48854
- Reassigned Medicare billing, Michigan enrollment
- 916 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 761 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 2
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
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 Barbara Hamilton's NPI number?
The NPI number for Barbara Hamilton is 1508123696. It was assigned to this individual provider in the NPPES registry on April 13, 2012.
Where is Barbara Hamilton located?
Barbara Hamilton practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The listed phone number is (734) 936-4000.
What is Barbara Hamilton's specialty?
The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.
Is Barbara Hamilton enrolled in Medicare?
Yes. Barbara Hamilton 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 Barbara Hamilton's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Barbara Hamilton reassigns Medicare benefits to 5 organizations: Regents Of The University Of Michigan (Ann Arbor, MI), Edward W. Sparrow Hospital Association (Mason, MI), University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA) and Ucsf Dept Of Surgery (San Francisco, CA). 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 Barbara Hamilton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Barbara Hamilton accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 1 other insurer list Barbara Hamilton 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 Barbara Hamilton affiliated with any hospitals?
According to CMS data, Barbara Hamilton is affiliated with University Of Michigan Health System.
When was this NPI record last updated?
The NPPES record for Barbara Hamilton was last updated on July 22, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Barbara Hamilton, M.D. · NPI 1508123696
Thoracic Surgery (Cardiothoracic Vascular Surgery) physician in Ann Arbor, Michigan. Individual provider, active in the CMS NPPES registry since April 13, 2012.
## Identity
- **NPI:** 1508123696 (Entity type: Individual)
- **Enumerated:** April 13, 2012
- **Primary specialty:** Thoracic Surgery (Cardiothoracic Vascular Surgery) · taxonomy 208G00000X
- **State license:** 4301507097 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 1500 E MEDICAL CENTER DR, Ann Arbor, MI 48109-5000
- **Phone:** (734) 936-4000
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Regents Of The University Of Michigan (NPI 1003848144, Ann Arbor, MI); Edward W. Sparrow Hospital Association (NPI 1689683641, Mason, MI); University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); Ucsf Dept Of Surgery (NPI 1477627537, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2012
## Record status
- **NPPES last updated:** July 22, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1508123696) · Data from the CMS NPPES public registry.