Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

DR. CHAI SYLVESTER DNP, PMHNP-BC
NPI 1033025663
Nurse Practitioner - Psychiatric/Mental Health in Billings, MT

Q: What is Chai Sylvester's NPI number?

The NPI number for Chai Sylvester is 1033025663. It was assigned to this individual provider in the NPPES registry on August 22, 2026.

Q: What is Chai Sylvester's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Q: When was this NPI record last updated?

The NPPES record for Chai Sylvester was last updated on August 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.

Active since August 22, 2026

3090 PARKHILL DR, BILLINGS, MT 59102(307) 399-8584 Get Directions Write a Review

NPPES record added: August 22, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

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About Dr. Chai Sylvester Dnp, Pmhnp-bc NPPES

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

DR. CHAI SYLVESTER DNP, PMHNP-BC (NPI 1033025663) is an individual psychiatric/mental health provider in Billings, Montana, licensed in Montana (NUR-APRN-LIC-292521) and active in the NPI registry since August 2026.

NPPES Registry Identity

NPI1033025663

Entity TypeIndividualFemale

Primary Taxonomy363LP0808X

Provider Legal NameDR. CHAI SYLVESTERCredential: DNP, PMHNP-BC

Location Address3090 PARKHILL DRBillings, MT 59102-6531

Mailing Address3090 Parkhill DrBillings, MT 59102-6531

Phone(307) 399-8584

Sole ProprietorNo

Enumeration DateAugust 22, 2026

NPPES CertifiedAugust 22, 2026

✔ NPI 1033025663 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LP0808X

License✔ Licensed in MT · NUR-APRN-LIC-292521

3090 PARKHILL DR, Billings, MT 59102

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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 Chai Sylvester's NPI number?

The NPI number for Chai Sylvester is 1033025663. It was assigned to this individual provider in the NPPES registry on August 22, 2026.

Where is Chai Sylvester located?

Chai Sylvester practices at 3090 Parkhill Dr, Billings, MT 59102. The listed phone number is (307) 399-8584.

What is Chai Sylvester's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

When was this NPI record last updated?

The NPPES record for Chai Sylvester was last updated on August 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.