AUDREY MULLIN SIM MD
NPI 1881604577
Family Medicine in Saint Clair Shores, MI
About Audrey Mullin Sim Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AUDREY MULLIN SIM MD (NPI 1881604577) is an individual family medicine provider in Saint Clair Shores, Michigan, licensed in Michigan (4301073033) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS, is affiliated with Beaumont Hospital - Grosse Pointe, and is a graduate of Other (1998).
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
Audrey Mullin Sim 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
3Medicare enrollment records show Audrey Sim reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Clair Shores, MI 48081
- Reassigned Medicare billing, Michigan enrollment
Saint Clair Shores, MI 48081
- Reassigned Medicare billing, Michigan enrollment
- 520 clinicians in this Medicare group
Clinton Township, MI 48038
- Reassigned Medicare billing, Michigan enrollment
- 111 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 6
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Beaumont Hospital - Grosse Pointe
Acute Care Hospitals · Grosse Pointe, MIAscension St John Hospital
Acute Care Hospitals · Detroit, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48081 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Other Providers at the Same Location NPPES 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT CLAIR SHORES, MI 48081
SAINT CLAIR SHORES, MI 48081
SAINT CLAIR SHORES, MI 48081
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 Audrey Sim's NPI number?
The NPI number for Audrey Sim is 1881604577. It was assigned to this individual provider in the NPPES registry on August 8, 2006.
Where is Audrey Sim located?
Audrey Sim practices at 25915 Harper Ave Suite B, Saint Clair Shores, MI 48081. The listed phone number is (586) 872-2580.
What is Audrey Sim's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Audrey Sim enrolled in Medicare?
Yes. Audrey Sim 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 Audrey Sim's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Audrey Sim reassigns Medicare benefits to 3 organizations: Audrey M Sim PLLC (Saint Clair Shores, MI), Henry Ford Health St. John Hospital (Saint Clair Shores, MI) and Seton Health Corporation Of Southeastern Michigan (Clinton Township, 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 Audrey Sim's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Audrey Sim 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 2 other insurers list Audrey Sim 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 Audrey Sim affiliated with any hospitals?
According to CMS data, Audrey Sim is affiliated with Beaumont Hospital - Grosse Pointe and Ascension St John Hospital.
When was this NPI record last updated?
The NPPES record for Audrey Sim was last updated on April 30, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Audrey Mullin Sim, MD · NPI 1881604577
Family Medicine physician in Saint Clair Shores, Michigan. Individual provider, active in the CMS NPPES registry since August 8, 2006.
## Identity
- **NPI:** 1881604577 (Entity type: Individual)
- **Enumerated:** August 8, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 4301073033 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 25915 HARPER AVE, SUITE B, Saint Clair Shores, MI 48081-3770
- **Phone:** (586) 872-2580 · **Fax:** (586) 872-2689
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Audrey M Sim PLLC (NPI 1407161086, Saint Clair Shores, MI); Henry Ford Health St. John Hospital (NPI 1376820605, Saint Clair Shores, MI); Seton Health Corporation Of Southeastern Michigan (NPI 1598177065, Clinton Township, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1998
## Record status
- **NPPES last updated:** April 30, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1881604577) · Data from the CMS NPPES public registry.