Mary Ellen Dreher, APRN, CRNA
NPI 1851518690 · Certified Registered Nurse Anesthetist · Rochester, MN
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Ellen Dreher, APRN, CRNA is a Certified Registered Nurse Anesthetist provider in Rochester, MN (NPI 1851518690).
Provider details
- NPI number
- 1851518690
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN, CRNA
- Sex
- Female
- Sole proprietor
- No
- License
- 39 (MN)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-20
- Last updated
- 2024-08-20
- Certified
- 2024-08-20
Frequently asked questions
- What is Mary Ellen Dreher's NPI number?
- Mary Ellen Dreher's National Provider Identifier (NPI) is 1851518690, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Ellen Dreher's specialty?
- Mary Ellen Dreher is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Ellen Dreher located?
- Mary Ellen Dreher's practice location on file with NPPES is 1650 4th St Se, Rochester, MN 55904-4717.
- What is Mary Ellen Dreher's phone number?
- The practice phone number listed in the NPPES registry for Mary Ellen Dreher is (507) 529-6600.
- Does Mary Ellen Dreher accept Medicare?
- Mary Ellen Dreher is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Ellen Dreher's NPI active?
- Yes — Mary Ellen Dreher's NPI (1851518690) is active in the NPPES registry as of the last update on 2024-08-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.