DR. MARIA ELENA JOHNSTON DNAP, CRNA
NPI 1649357443
Nurse Anesthetist, Certified Registered in Wayne, MI

Active since November 01, 2006
33155 ANNAPOLIS ST, WAYNE, MI 48184(734) 467-4667(734) 467-2303 Get Directions Write a Review

NPPES record last updated: May 27, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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

NPI1649357443
Entity TypeIndividualFemale
Primary Taxonomy367500000X
Provider Legal NameDR. MARIA ELENA JOHNSTONCredential: DNAP, CRNA
Location Address33155 ANNAPOLIS STWayne, MI 48184-2405
Mailing Address33155 Annapolis StWayne, MI 48184-2405 · (734) 467-4667 · Fax (734) 467-2303
Fax(734) 467-2303
Sole ProprietorNo
Medical School CMSOtherGraduated 1998
Enumeration DateNovember 1, 2006
Last NPPES UpdateMay 27, 2021
NPPES CertifiedMay 27, 2021
✔ NPI 1649357443 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
Licenses✔ Licensed in MI · 4704180960✔ Licensed in OH · APRN.CRNA.0020289
Definition
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.
33155 ANNAPOLIS ST, Wayne, MI 48184

Secondary Practice Location 1

Location 13330 Meijer Dr Ste 2Toledo, OH 43617-3103 · Phone (419) 578-2020

Other Identifiers 3

Medicaid4171070MI
Medicaid4343657MI
Medicaid4720000MI

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).

PECOS PAC ID7911959564
PECOS Enrollment IDI20050211000536, I20210602002737

Medicare Billing Reassignments

9

Medicare 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.

Anesthesiology
33545 CHERRY HILL RD FL 2
Westland, MI 48186
  • Reassigned Medicare billing, Michigan enrollment
  • 273 clinicians in this Medicare group
Gastroenterology
5300 ELLIOTT DR
Ypsilanti, MI 48197
  • Reassigned Medicare billing, Michigan enrollment
  • 123 clinicians in this Medicare group
Anesthesiology
30055 NORTHWESTERN HWY, SUITE L60
Farmington Hills, MI 48334
  • Reassigned Medicare billing, Michigan enrollment
  • 199 clinicians in this Medicare group
Anesthesiology
43422 W OAKS DR # 332
Novi, MI 48377
  • Reassigned Medicare billing, Michigan enrollment
  • 188 clinicians in this Medicare group
Anesthesiology
43422 W OAKS DR # 332
Novi, MI 48377
  • Reassigned Medicare billing, Michigan enrollment
  • 192 clinicians in this Medicare group
Anesthesiology
6777 W. MAPLE
West Bloomfield, MI 48322
  • Reassigned Medicare billing, Michigan enrollment
  • 161 clinicians in this Medicare group
Anesthesiology
4235 SECOR RD
Toledo, OH 43623
  • Reassigned Medicare billing, Ohio enrollment
  • 44 clinicians in this Medicare group
Nurse Anesthetist, Certified Registered
4841 MONROE ST, SUITE 111
Toledo, OH 43623
  • Reassigned Medicare billing, Ohio enrollment
  • 31 clinicians in this Medicare group
Pain Medicine
6225 N STATE HIGHWAY 161 STE 200
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.

Anesthesia for lens surgery 00142
Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.
91 services87 patients
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
24 services24 patients
Anesthesia for other procedure on large bowel using an endoscope 00811
Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.
20 services20 patients
Anesthesia for retinal surgery 00145
Anesthesia for retinal surgery involves using medications to numb your eye and surrounding area. This prevents pain and discomfort during the procedure. You may also receive medication to help you relax. The anesthesia can be local (just your eye) or general (you're asleep).
15 services14 patients

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, OH
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number360068
Location2142 North Cove BoulevardToledo, OH 43606 · Lucas County
Emergency services Birthing friendly

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.

Family Medicine
33155 ANNAPOLIS ST
WAYNE, MI 48184
Family Medicine
33155 ANNAPOLIS ST
WAYNE, MI 48184
Emergency Medicine
33155 ANNAPOLIS ST, EMERGENCY MEDICINE DEPARTMENT
WAYNE, MI 48184
Nurse Anesthetist, Certified Registered
33155 ANNAPOLIS ST
WAYNE, MI 48184
Emergency Medicine
33155 ANNAPOLIS ST, EMERGENCY DEPT
WAYNE, MI 48184
Nurse Practitioner
33155 ANNAPOLIS ST
WAYNE, MI 48184
Family Medicine
33155 ANNAPOLIS ST
WAYNE, MI 48184
Nurse Anesthetist, Certified Registered
33155 ANNAPOLIS ST
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.