CHISDAK OB-GYN
CHISDAK OB-GYN is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1407803232, based in Billings, MT. It is classified under Obstetrics & Gynecology Physician.
Getting there
The practice address on file is 2132 BROADWATER AVE STE A1, Billings, MT 59102. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 9885 | MT | Obstetrics & Gynecology Physician primary |
This provider holds licence 9885 issued in MT. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Obstetrics & Gynecology covers
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women. NUCC Health Care Provider Taxonomy, code 207V00000X
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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1407803232 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | May 27, 2006 |
| Last updated | Aug 22, 2020 |
| Status | Active |
| Practice address |
2132 BROADWATER AVE STE A1 Billings, MT 59102 (406) 556-4649 Fax (406) 556-7083 |
| Mailing address |
1648 ELLIS ST SUITE 201 Bozeman, MT 59715 |
| Other identifiers |
44285
· Medicaid (MT) |
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 | 4 | 0 | 7 | 8 | 0 | 3 | 2 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 4 | 0 | 7 | 7 | 0 | 6 | 2 | 6 |
Sum = 58 · next multiple of 10 = 60 · 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.