1. Home
  2. Directory
  3. Montana
  4. Havre
  5. Nurse Anesthetist Certified Registered
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

HILLARY RIGGIN CRNA
NPI 1003241472
Nurse Anesthetist, Certified Registered in Havre, MT

Active since September 04, 2013Accepts Medicare Assignment

NPPES record last updated: September 28, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 28, 2026, Oct 9, 2025, Nov 5, 2024 and 3 more (6 updates tracked since 2023).

About Hillary Riggin Crna NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

HILLARY RIGGIN CRNA (NPI 1003241472) is an individual nurse anesthetist, certified registered in Havre, Montana, licensed in Montana (101009) and active in the NPI registry since September 2013. She is affiliated with Northern Montana Hospital and is a graduate of Other (2013).

NPPES Registry Identity

NPI1003241472
Entity TypeIndividualFemale
Primary Taxonomy367500000X
Provider Legal NameHILLARY RIGGINCredential: CRNA
Location Address30 13TH STHavre, MT 59501-5222
Mailing AddressPo Box 1231Havre, MT 59501-1231 · (406) 265-2211
Phone(406) 265-2211
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateSeptember 4, 2013
Last NPPES UpdateSeptember 28, 20266 updates tracked since enumeration
NPPES CertifiedSeptember 28, 2026
✔ NPI 1003241472 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
License✔ Licensed in MT · 101009
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.
30 13TH ST, Havre, MT 59501
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Hillary Riggin Crna is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7416186226
PECOS Enrollment IDI20140127000726

Medicare Billing Reassignment

Medicare enrollment records show Hillary Riggin reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Northern Montana Hospital
Same address
Critical Access
30 13TH ST
Havre, MT 59501
  • Reassigned Medicare billing, Montana enrollment
  • 81 clinicians in this Medicare group
NPI 1427059070 (406) 262-1302

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northern Montana Hospital

Critical Access Hospitals · Havre, MT
OwnershipVoluntary non-profit - Private
CMS Certification Number271348
Location30 13th StHavre, MT 59501 · Hill County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 59501 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$130.52 typical visit price
range $56.81 – $172.26
Typical copayment $32.63 (range $14.20 – $43.06)
Most-billed visit code 99204
Established Patient
$70.82 typical visit price
range $18.24 – $140.32
Typical copayment $17.70 (range $4.56 – $35.08)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

NORTHERN MONTANA HEALTH CARE INC.
General Practice
30 13TH ST
HAVRE, MT 59501
Hill County (406) 265-2211
MRS. KATHERINE GERTRUDE CHRISTECK RD
Dietitian, Registered
30 13TH ST
HAVRE, MT 59501
Hill County (406) 265-2211
DR. WALTER SMITH DO
Radiology (Body Imaging)
30 13TH ST
HAVRE, MT 59501
Hill County (406) 265-2211
KIMBERLY ROWLAND CRNA
Nurse Anesthetist, Certified Registered
30 13TH ST
HAVRE, MT 59501
Hill County (406) 265-2211
SABRINA L HAMILTON PA-C
Physician Assistant (Medical)
30 13TH ST
HAVRE, MT 59501
Hill County (406) 265-2211
DR. DONALD SAWDEY DO
Family Medicine
30 13TH ST
HAVRE, MT 59501
Hill County (406) 265-2211
DR. STEPHEN L. BECHDOLT M.D.
Specialist
30 13TH ST
HAVRE, MT 59501
Hill County (406) 262-1305
PAUL G KRUM
Nurse Anesthetist, Certified Registered
30 13TH ST
HAVRE, MT 59501
Hill County (406) 265-2211

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 Hillary Riggin's NPI number?

The NPI number for Hillary Riggin is 1003241472. It was assigned to this individual provider in the NPPES registry on September 4, 2013.

Where is Hillary Riggin located?

Hillary Riggin practices at 30 13th St, Havre, MT 59501. The listed phone number is (406) 265-2211.

What is Hillary Riggin's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Is Hillary Riggin enrolled in Medicare?

Yes. Hillary Riggin is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Hillary Riggin's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Hillary Riggin reassigns Medicare benefits to Northern Montana Hospital (Havre, MT). The 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 Hillary Riggin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Hillary Riggin accept?

Health plans from Blue Cross and Blue Shield of Montana list Hillary Riggin 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 Hillary Riggin affiliated with any hospitals?

According to CMS data, Hillary Riggin is affiliated with Northern Montana Hospital.

When was this NPI record last updated?

The NPPES record for Hillary Riggin was last updated on September 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 40 days 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.