SARAH ASHLEY LAWRENCE MD
NPI 1730708256
Internal Medicine in Ann Arbor, MI
About Sarah Ashley Lawrence Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SARAH ASHLEY LAWRENCE MD (NPI 1730708256) is an individual internal medicine provider in Ann Arbor, Michigan, licensed in Michigan (EMC0006873) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS, is affiliated with University Of Michigan Health System, and maintains a secondary practice location in Alexandria.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Location 1
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
Sarah Ashley Lawrence 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
6Medicare enrollment records show Sarah Lawrence reassigns Medicare billing to 6 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
Dubuque, IA 52001
- Reassigned Medicare billing, Iowa enrollment
- 177 clinicians in this Medicare group
Rochester, MN 55905
- Reassigned Medicare billing, Minnesota enrollment
- 6,534 clinicians in this Medicare group
Red Wing, MN 55066
- Reassigned Medicare billing, Minnesota enrollment
- 1,571 clinicians in this Medicare group
Waseca, MN 56093
- Reassigned Medicare billing, Minnesota enrollment
- Also billed through NPI 1124035282 (Minnesota)
- 1,572 clinicians in this Medicare group
Alexandria, MN 56308
- Reassigned Medicare billing, Minnesota enrollment
- 137 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
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 Sarah Lawrence's NPI number?
The NPI number for Sarah Lawrence is 1730708256. It was assigned to this individual provider in the NPPES registry on April 14, 2020. The provider is also known as Sarah Ashley Porter.
Where is Sarah Lawrence located?
Sarah Lawrence practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The listed phone number is (734) 936-4000.
What is Sarah Lawrence's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Sarah Lawrence enrolled in Medicare?
Yes. Sarah Lawrence 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 Sarah Lawrence's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sarah Lawrence reassigns Medicare benefits to 6 organizations: Regents Of The University Of Michigan (Ann Arbor, MI), The Finley Hospital (Dubuque, IA), Mayo Clinic (Rochester, MN), Mayo Clinic Health System-Southeast Minnesota Region (Red Wing, MN), Mayo Clinic Health System-Southwest Minnesota Region (Waseca, MN) and 1 more organization, listed in the Medicare section above. 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 Sarah Lawrence's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sarah Lawrence accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and Priority Health list Sarah Lawrence 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 Sarah Lawrence affiliated with any hospitals?
According to CMS data, Sarah Lawrence is affiliated with University Of Michigan Health System.
When was this NPI record last updated?
The NPPES record for Sarah Lawrence was last updated on August 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Sarah Ashley Lawrence, MD · NPI 1730708256
Internal Medicine physician in Ann Arbor, Michigan. Individual provider, active in the CMS NPPES registry since April 14, 2020.
## Identity
- **NPI:** 1730708256 (Entity type: Individual)
- **Enumerated:** April 14, 2020
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** EMC0006873 (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:** 6 organizations under Medicare reassignment (form CMS-855R): Regents Of The University Of Michigan (NPI 1003848144, Ann Arbor, MI); The Finley Hospital (NPI 1073560462, Dubuque, IA); Mayo Clinic (NPI 1114343860, Rochester, MN); Mayo Clinic Health System-Southeast Minnesota Region (NPI 1114453883, Red Wing, MN); Mayo Clinic Health System-Southwest Minnesota Region (NPI 1518494251, Waseca, MN); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** August 25, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1730708256) · Data from the CMS NPPES public registry.