ANDREA L HOLOWCHAK CRNA
NPI 1184012833
Nurse Anesthetist, Certified Registered in Troy, MI
About Andrea L Holowchak Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANDREA L HOLOWCHAK CRNA (NPI 1184012833) is an individual nurse anesthetist, certified registered in Troy, Michigan, licensed in Michigan (4704272214) and active in the NPI registry since January 2015. She is affiliated with Trinity Health Oakland Hospital and is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses
Other Names 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 (PECOS)
Andrea L Holowchak Crna is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Andrea Holowchak reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Royal Oak, MI 48073
- Reassigned Medicare billing, Michigan enrollment
- 278 clinicians in this Medicare group
Westland, MI 48186
- Reassigned Medicare billing, Michigan enrollment
- 273 clinicians in this Medicare group
Taylor, MI 48180
- Reassigned Medicare billing, Michigan enrollment
- 53 clinicians in this Medicare group
Irving, TX 75038
- Reassigned Medicare billing, Michigan enrollment
- 905 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Trinity Health Oakland Hospital
Acute Care Hospitals · Pontiac, MIBeaumont Hospital, Troy
Acute Care Hospitals · Troy, 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.
TROY, MI 48085
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 Andrea Holowchak's NPI number?
The NPI number for Andrea Holowchak is 1184012833. It was assigned to this individual provider in the NPPES registry on January 5, 2015. The provider is also known as Andrea L Masser Crna.
Where is Andrea Holowchak located?
Andrea Holowchak practices at 44201 Dequindre Rd Beaumont Hospital - Troy, Troy, MI 48085. The listed phone number is (248) 964-3000.
What is Andrea Holowchak's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Andrea Holowchak enrolled in Medicare?
Yes. Andrea Holowchak is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Andrea Holowchak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Andrea Holowchak reassigns Medicare benefits to 4 organizations: William Beaumont Hospital (Royal Oak, MI), Anesthesia Associates Of Ann Arbor, PLLC (Westland, MI), Nsa Pain Services Of Michigan III, PLLC (Taylor, MI) and Northstar Anesthesia Of Michigan III PLLC (Irving, TX). 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 Andrea Holowchak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Andrea Holowchak accept?
Health plans from Oscar Insurance Company list Andrea Holowchak 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 Andrea Holowchak affiliated with any hospitals?
According to CMS data, Andrea Holowchak is affiliated with Trinity Health Oakland Hospital and Beaumont Hospital, Troy.
When was this NPI record last updated?
The NPPES record for Andrea Holowchak was last updated on November 30, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.