DR. MARIA ELENA JOHNSTON DNAP, CRNA
NPI 1649357443
Nurse Anesthetist, Certified Registered in Wayne, MI
About Dr. Maria Elena Johnston Dnap, Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARIA ELENA JOHNSTON DNAP, CRNA (NPI 1649357443) is an individual nurse anesthetist, certified registered in Wayne, Michigan, licensed in Michigan (4704180960) and active in the NPI registry since November 2006. She is affiliated with Promedica Toledo Hospital, maintains a secondary practice location in Toledo, and is a graduate of Other (1998).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 3
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)
Dr. Maria Elena Johnston Dnap, Crna is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
9Medicare enrollment records show Maria Johnston reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Westland, MI 48186
- Reassigned Medicare billing, Michigan enrollment
- 273 clinicians in this Medicare group
Ypsilanti, MI 48197
- Reassigned Medicare billing, Michigan enrollment
- 123 clinicians in this Medicare group
Farmington Hills, MI 48334
- Reassigned Medicare billing, Michigan enrollment
- 199 clinicians in this Medicare group
Novi, MI 48377
- Reassigned Medicare billing, Michigan enrollment
- 188 clinicians in this Medicare group
Novi, MI 48377
- Reassigned Medicare billing, Michigan enrollment
- 192 clinicians in this Medicare group
West Bloomfield, MI 48322
- Reassigned Medicare billing, Michigan enrollment
- 161 clinicians in this Medicare group
Toledo, OH 43623
- Reassigned Medicare billing, Ohio enrollment
- 44 clinicians in this Medicare group
Toledo, OH 43623
- Reassigned Medicare billing, Ohio enrollment
- 31 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 4
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.
Promedica Toledo Hospital
Acute Care Hospitals · Toledo, OHOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WAYNE, MI 48184
WAYNE, MI 48184
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 Maria Johnston's NPI number?
The NPI number for Maria Johnston is 1649357443. It was assigned to this individual provider in the NPPES registry on November 1, 2006.
Where is Maria Johnston located?
Maria Johnston practices at 33155 Annapolis St, Wayne, MI 48184. The listed phone number is (734) 467-4667.
What is Maria Johnston's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Maria Johnston enrolled in Medicare?
Yes. Maria Johnston is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Maria Johnston's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Maria Johnston reassigns Medicare benefits to 9 organizations: Anesthesia Associates Of Ann Arbor, PLLC (Westland, MI), Huron Gastroenterology Associates PC (Ypsilanti, MI), Northwestern Services, LLC (Farmington Hills, MI), West Michigan Aas LLC (Novi, MI), Novi Aas LLC (Novi, MI) and 4 more organizations, 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 Maria Johnston's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Maria Johnston accept?
Health plans from Priority Health list Maria Johnston 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 Maria Johnston affiliated with any hospitals?
According to CMS data, Maria Johnston is affiliated with Promedica Toledo Hospital.
When was this NPI record last updated?
The NPPES record for Maria Johnston was last updated on May 27, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.