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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Leslie Ann Ruybal, M.D.

Neonatal-Perinatal Medicine Physician in Billings, MT · enumerated 2012.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1457612921

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Registry record

Entity type Individual (Type 1)
Name Dr. Leslie Ann Ruybal
Credential M.D.
Sex Female
Practice address Billings, MT, 59101
Phone (406) 237-7076
Enumeration date May 31, 2012
Last updated in NPPES Aug 6, 2018

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2080N0001X Neonatal-Perinatal Medicine Physician Allopathic & Osteopathic Physicians · License 9324739-1205 (UT) Secondary
208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 6723 (NE) Secondary
2080N0001X Neonatal-Perinatal Medicine Physician Allopathic & Osteopathic Physicians · License 66810 (MT) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
6723 Other NE TEMPORARY EDUCATION PERMIT
9324739-1205 Other UT LICENSE NUMBER

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Leslie Ruybal practice?
The practice location on file with NPPES is in Billings, MT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Leslie Ruybal?
The National Provider Identifier (NPI) for Leslie Ruybal is 1457612921, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-08-06.