NPPES file of Aug 9, 2026

Alli Ann Greff, DNAP, CRNA

Certified Registered Nurse Anesthetist · Fargo, ND

Alli Ann Greff, DNAP, CRNA is a certified registered nurse anesthetist with a practice address in Fargo, North Dakota, and NPI 1427811298, issued on Feb 5, 2024. Check the license (North Dakota R55522, as entered in NPPES) with the North Dakota board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1427811298
Name
Alli Ann Greff
Credential
DNAP, CRNA
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License number
R55522 ND
Self-reported in NPPES; status is on the state search
Practice location
5225 23RD Ave S, Fargo, ND 58104
Phone
(701) 417-2000
Enumerated
Feb 5, 2024
Record last updated
Apr 12, 2024
Medicare enrollment
Enrolled (PECOS I20240612000677); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 5225 23RD Ave S

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Brooke Abel, OTR/LOccupational Therapist1700392305
  2. Nabil Abouchala, MDCritical Care Medicine (Internal Medicine) Physician1265450233
  3. Nicole Abrahamson, APRN, CRNACertified Registered Nurse Anesthetist1851319529
  4. Nisha AgarwalPediatric Critical Care Medicine Physician1174928162
  5. Rita Ahmad, MDInternal Medicine Physician1376383778
  6. Anusha Akhai, MDStudent in an Organized Health Care Education/Training Program1043107055

Verify Alli Ann Greff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich North Dakota board licenses this profession
    Search for license R55522
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the North Dakota license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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One hospital affiliation

  1. Sanford Medical Center FargoWest Fargo, ND · Acute Care Hospitals4 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Alli Ann Greff among 442 certified registered nurse anesthetist records in North Dakota

Alli Ann Greff, DNAP, CRNA is one of 442 certified registered nurse anesthetist records with a practice address in North Dakota. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2024, is newer than 98% of them.

  • NPI issued2024 · 98% of these records are older, 1% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2024 · median 2014 among the 326 with a school on file
  • Record last updated2024 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a North Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

211 certified registered nurse anesthetist records list a practice address in Fargo

They are 211 of the 7,209 NPPES records with a practice address in Fargo, and 442 certified registered nurse anesthetist records in North Dakota.

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Nicole Abrahamson, APRN, CRNAFargo, ND 581041851319529
  2. Ronald Beare, CRNAFargo, ND 581041508895954
  3. Michael Carr, CRNAFargo, ND 581041104844802
  4. Alison Erickson, CRNAFargo, ND 581041386034940
  5. Eric HeidenFargo, ND 581041124526470
  6. Tara Hilscher Decker, C.R.N.A.Fargo, ND 581041962517227
  7. Jason Huber, CRNAFargo, ND 581041467470104
  8. Kristi Johnson, CRNAFargo, ND 581041770501322

Common questions

What is Alli Ann Greff, DNAP, CRNA's NPI number?

Alli Ann Greff, DNAP, CRNA's National Provider Identifier (NPI) is 1427811298, issued on Feb 5, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Alli Ann Greff, DNAP, CRNA located?

The NPPES record lists a practice address at 5225 23RD Ave S, Fargo, ND, 58104. Phone: (701) 417-2000. Providers update this record themselves, so call before visiting.

How can I verify Alli Ann Greff, DNAP, CRNA's license?

NPPES lists North Dakota license number R55522, as entered by the provider. Search the North Dakota board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.