HOLLY ANN WIRKUS M.D.
NPI 1912434655
Internal Medicine - Hospice and Palliative Medicine in Detroit, MI
About Holly Ann Wirkus M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HOLLY ANN WIRKUS M.D. (NPI 1912434655) is an individual hospice and palliative medicine provider in Detroit, Michigan, licensed in Michigan (4301505152) and active in the NPI registry since May 2017. She is enrolled in Medicare PECOS, is affiliated with Ascension St John Hospital, and is a graduate of Other (2017).
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
Holly Ann Wirkus 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 Holly Wirkus reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Detroit, MI 48236
- Reassigned Medicare billing, Michigan enrollment
- Medicare enrollment name: Henry Ford Health St. John Hospital
- 520 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 5
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.
Ascension St John Hospital
Acute Care Hospitals · Detroit, MIMedicare 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.
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.
DETROIT, MI 48236
DETROIT, MI 48236
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 Holly Wirkus's NPI number?
The NPI number for Holly Wirkus is 1912434655. It was assigned to this individual provider in the NPPES registry on May 12, 2017.
Where is Holly Wirkus located?
Holly Wirkus practices at 22101 Moross Rd, Detroit, MI 48236. The listed phone number is (313) 343-4000.
What is Holly Wirkus's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hospice and Palliative Medicine, with taxonomy code 207RH0002X.
Is Holly Wirkus enrolled in Medicare?
Yes. Holly Wirkus 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 Holly Wirkus's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Holly Wirkus reassigns Medicare benefits to Ascension St John Hospital (Detroit, 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 Holly Wirkus's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Holly Wirkus 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 Holly Wirkus 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 Holly Wirkus affiliated with any hospitals?
According to CMS data, Holly Wirkus is affiliated with Ascension St John Hospital.
When was this NPI record last updated?
The NPPES record for Holly Wirkus was last updated on April 19, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Holly Ann Wirkus, M.D. · NPI 1912434655
Hospice and Palliative Medicine physician in Detroit, Michigan. Individual provider, active in the CMS NPPES registry since May 12, 2017.
## Identity
- **NPI:** 1912434655 (Entity type: Individual)
- **Enumerated:** May 12, 2017
- **Primary specialty:** Internal Medicine - Hospice and Palliative Medicine · taxonomy 207RH0002X
- **State license:** 4301505152 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 22101 MOROSS RD, Detroit, MI 48236-2148
- **Phone:** (313) 343-4000
## 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:** Ascension St John Hospital (NPI 1023149473, Detroit, MI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** April 19, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1912434655) · Data from the CMS NPPES public registry.