LAUREN ALISSA HEIDEMANN M.D.
NPI 1699038224
Internal Medicine in Ann Arbor, MI
About Lauren Alissa Heidemann M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LAUREN ALISSA HEIDEMANN M.D. (NPI 1699038224) is an individual internal medicine provider in Ann Arbor, Michigan, licensed in Michigan (4301100302) and active in the NPI registry since June 2012. She is enrolled in Medicare PECOS, is affiliated with University Of Michigan Health System, and is a graduate of University Of Michigan Medical School (2012).
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
Lauren Alissa Heidemann 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 Reassignment
Medicare enrollment records show Lauren Heidemann 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.
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 Lauren Heidemann's NPI number?
The NPI number for Lauren Heidemann is 1699038224. It was assigned to this individual provider in the NPPES registry on June 19, 2012.
Where is Lauren Heidemann located?
Lauren Heidemann practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The listed phone number is (734) 936-4000.
What is Lauren Heidemann's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Lauren Heidemann enrolled in Medicare?
Yes. Lauren Heidemann 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 Lauren Heidemann's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lauren Heidemann 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 Lauren Heidemann's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Lauren Heidemann accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and Priority Health list Lauren Heidemann 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 Lauren Heidemann affiliated with any hospitals?
According to CMS data, Lauren Heidemann is affiliated with University Of Michigan Health System.
When was this NPI record last updated?
The NPPES record for Lauren Heidemann was last updated on March 20, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Lauren Alissa Heidemann, M.D. · NPI 1699038224
Internal Medicine physician in Ann Arbor, Michigan. Individual provider, active in the CMS NPPES registry since June 19, 2012.
## Identity
- **NPI:** 1699038224 (Entity type: Individual)
- **Enumerated:** June 19, 2012
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 4301100302 (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:** 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 Michigan Medical School, class of 2012
## Record status
- **NPPES last updated:** March 20, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1699038224) · Data from the CMS NPPES public registry.