What is Joann Guan's NPI number?

Joann Guan's National Provider Identifier (NPI) is 1710817390, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Joann Guan's specialty?

Joann Guan is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).

Where is Joann Guan located?

Joann Guan's practice location on file with NPPES is 309 E 2nd St, Pomona, CA 91766-1854.

What is Joann Guan's phone number?

The practice phone number listed in the NPPES registry for Joann Guan is (909) 469-5589.

Is Joann Guan's NPI active?

Yes — Joann Guan's NPI (1710817390) is active in the NPPES registry as of the last update on 2026-05-23.

IndividualActive

Joann Guan

NPI 1710817390 · Student in an Organized Health Care Education/Training Program · Pomona, CA

Joann Guan is a Student in an Organized Health Care Education/Training Program provider in Pomona, CA (NPI 1710817390).

Provider details

NPI number: 1710817390
Entity type: Individual
Primary specialty: Student in an Organized Health Care Education/Training ProgramStudent, Health Care
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Student in an Organized Health Care Education/Training ProgramPrimary390200000X
Student, Health Care

Profile Score

Basic profile(46/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in registry
Profile completeness38% of score
83% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

309 E 2nd St

Pomona, CA 91766-1854

Phone: (909) 469-5589

Street-level locationGet directions

More CA providers

Mailing address