MR. MARK L PASSOW FNP-BC
NPI 1871908897
Nurse Practitioner - Family in Livonia, MI
About Mr. Mark L Passow Fnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. MARK L PASSOW FNP-BC (NPI 1871908897) is an individual family provider in Livonia, Michigan, licensed in Michigan (4704248035) and active in the NPI registry since June 2014. He is enrolled in Medicare PECOS, is affiliated with St Joe Mercy Hospital System Livonia, and maintains 13 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 13
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
Mr. Mark L Passow Fnp-bc 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 Mark Passow reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Livonia, MI 48152
- Reassigned Medicare billing, Michigan enrollment
- 6 clinicians in this Medicare group
Prudenville, MI 48651
- Reassigned Medicare billing, Michigan enrollment
- 123 clinicians in this Medicare group
Mc Bain, MI 49657
- Reassigned Medicare billing, Michigan enrollment
- 168 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Joe Mercy Hospital System Livonia
Acute Care Hospitals · Livonia, MIMunson Healthcare Grayling Hospital
Acute Care Hospitals · Grayling, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48152 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 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Mark Passow's NPI number?
The NPI number for Mark Passow is 1871908897. It was assigned to this individual provider in the NPPES registry on June 27, 2014.
Where is Mark Passow located?
Mark Passow practices at 20331 Farmington Rd, Livonia, MI 48152. The listed phone number is (248) 474-2288.
What is Mark Passow's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Mark Passow enrolled in Medicare?
Yes. Mark Passow 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 Mark Passow's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Passow reassigns Medicare benefits to 3 organizations: Nova Medica PLLC (Livonia, MI), Munson Healthcare Grayling (Prudenville, MI) and Munson Healthcare Otsego Memorial Hospital (Mc Bain, 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 Mark Passow's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Passow accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Oscar Insurance Company and Priority Health list Mark Passow 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 Mark Passow affiliated with any hospitals?
According to CMS data, Mark Passow is affiliated with St Joe Mercy Hospital System Livonia and Munson Healthcare Grayling Hospital.
When was this NPI record last updated?
The NPPES record for Mark Passow was last updated on December 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Mr. Mark L Passow, FNP-BC · NPI 1871908897
Family physician in Livonia, Michigan. Individual provider, active in the CMS NPPES registry since June 27, 2014.
## Identity
- **NPI:** 1871908897 (Entity type: Individual)
- **Enumerated:** June 27, 2014
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 4704248035 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 20331 FARMINGTON RD, Livonia, MI 48152-1411
- **Phone:** (248) 474-2288
## 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): Nova Medica PLLC (NPI 1417979360, Livonia, MI); Munson Healthcare Grayling (NPI 1144626052, Prudenville, MI); Munson Healthcare Otsego Memorial Hospital (NPI 1043778194, Mc Bain, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** December 9, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1871908897) · Data from the CMS NPPES public registry.