Heidi Greifzu, APRN, MHNP
NPI 1386260370 · Psychiatric/Mental Health Nurse Practitioner · Duluth, MN
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Heidi Greifzu, APRN, MHNP is a Psychiatric/Mental Health Nurse Practitioner provider in Duluth, MN (NPI 1386260370).
Provider details
- NPI number
- 1386260370
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN, MHNP
- Sex
- Female
- Sole proprietor
- No
- License
- 7587 (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
5 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
- 2020-06-25
- Last updated
- 2020-08-14
- Certified
- 2020-08-14
Frequently asked questions
- What is Heidi Greifzu's NPI number?
- Heidi Greifzu's National Provider Identifier (NPI) is 1386260370, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Heidi Greifzu's specialty?
- Heidi Greifzu is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Heidi Greifzu located?
- Heidi Greifzu's practice location on file with NPPES is 502 E 2nd St, Duluth, MN 55805-1913.
- What is Heidi Greifzu's phone number?
- The practice phone number listed in the NPPES registry for Heidi Greifzu is (218) 786-8364.
- Does Heidi Greifzu accept Medicare?
- Heidi Greifzu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Heidi Greifzu's NPI active?
- Yes — Heidi Greifzu's NPI (1386260370) is active in the NPPES registry as of the last update on 2020-08-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.