Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JANIS ZHIYING GUO
NPI 1609734029
Acupuncturist in Ontario, CA

Q: What is Janis Guo's NPI number?

The NPI number for Janis Guo is 1609734029. It was assigned to this individual provider in the NPPES registry on January 14, 2026.

Q: What is Janis Guo's specialty?

The primary specialty registered for this NPI is Acupuncturist with taxonomy code 171100000X.

Q: When was this NPI record last updated?

The NPPES record for Janis Guo was last updated on June 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 58 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 January 14, 2026

410 N LEMON ST, ONTARIO, CA 91764(909) 984-2765 Get Directions Write a Review

NPPES record last updated: June 16, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Janis Zhiying Guo NPPES

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

JANIS ZHIYING GUO (NPI 1609734029) is an individual acupuncturist in Ontario, California, licensed in California (20532) and active in the NPI registry since January 2026.

NPPES Registry Identity

NPI1609734029

Entity TypeIndividualFemale

Primary Taxonomy171100000X

Provider Legal NameJANIS ZHIYING GUO

Location Address410 N LEMON STOntario, CA 91764-3732

Mailing Address1525 Walnut Leaf Dr Unit 203Walnut, CA 91789-3622 · (626) 534-1003

Phone(909) 984-2765

Sole ProprietorYes

Enumeration DateJanuary 14, 2026

Last NPPES UpdateJune 16, 2026

NPPES CertifiedJune 16, 2026

✔ NPI 1609734029 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAcupuncturistOther Service Providers

Taxonomy Code171100000X

License✔ Licensed in CA · 20532

Definition

An acupuncturist is a person who performs ancient therapy for alleviation of pain, anesthesia and treatment of some diseases. Acupuncturists use long, fine needles inserted into specific points in order to treat painful conditions or produce anesthesia.

410 N LEMON ST, Ontario, CA 91764

Open in Google Maps ↗

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MAYRA CORTEZ DC

Chiropractor

410 N LEMON ST
ONTARIO, CA 91764

San Bernardino County (909) 984-2765

DESIREE NOEL ROBINSON

Chiropractor

410 N LEMON ST
ONTARIO, CA 91764

San Bernardino County (909) 984-2765

FANTASIA CHIROPRACTIC CORPORATION

Chiropractor

410 N LEMON ST
ONTARIO, CA 91764

San Bernardino County (909) 984-2765

DR. BRANDON J. FANTASIA D.C.

Chiropractor

410 N LEMON ST
ONTARIO, CA 91764

San Bernardino County (909) 984-2765

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 Janis Guo's NPI number?

The NPI number for Janis Guo is 1609734029. It was assigned to this individual provider in the NPPES registry on January 14, 2026.

Where is Janis Guo located?

Janis Guo practices at 410 N Lemon St, Ontario, CA 91764. The listed phone number is (909) 984-2765.

What is Janis Guo's specialty?

The primary specialty registered for this NPI is Acupuncturist with taxonomy code 171100000X.

When was this NPI record last updated?

The NPPES record for Janis Guo was last updated on June 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 58 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.