Hillary Riggin, CRNA
Hillary Riggin, CRNA is a Certified Registered Nurse Anesthetist in Havre, MT, registered under NPI 1003241472.
Getting there
Here is what surrounds this office in Havre, based on OpenStreetMap data collected Sep 13, 2026. Parking is available about 384 ft away. If you arrive early, there is a coffee shop 0.46 mi away.
Getting here and what is nearby
Parking 285 ft ~2 min
Parking 378 ft ~2 min
Parking 384 ft ~2 min
Coffee 5th Ave Grind 0.46 mi ~10 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 101009 | MT | Certified Registered Nurse Anesthetist primary |
This provider holds licence 101009 issued in MT. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Certified Registered Nurse Anesthetist (crna)
- PAC ID
- 7416186226
- Enrollment ID
- I20140127000726
Medicare enrolment is recorded as approved under the provider type Practitioner - Certified Registered Nurse Anesthetist (crna). Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Nurse Anesthetist, Certified Registered covers
(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. NUCC Health Care Provider Taxonomy, code 367500000X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003241472 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 4, 2013 |
| Last updated | Oct 9, 2025 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | CRNA |
| Practice address |
30 13TH ST Havre, MT 59501 (406) 265-2211 |
| Mailing address |
PO BOX 1231 Havre, MT 59501 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 2 | 4 | 1 | 4 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 4 | 2 | 4 | 5 |
Sum = 48 · next multiple of 10 = 50 · check digit = 2 · actual last digit = 2
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.