What is Hien DO's NPI number?

Hien DO's National Provider Identifier (NPI) is 1730571977, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Hien DO's specialty?

Hien DO is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).

Where is Hien DO located?

Hien DO's practice location on file with NPPES is 29675 the Old Road North, Castaic, CA 91384-4570.

What is Hien DO's phone number?

The practice phone number listed in the NPPES registry for Hien DO is (661) 702-6936.

Is Hien DO's NPI active?

Yes — Hien DO's NPI (1730571977) is active in the NPPES registry as of the last update on 2026-05-14.

IndividualActive

Hien DO

NPI 1730571977 · Pharmacist · Castaic, CA

Hien DO is a Pharmacist provider in Castaic, CA (NPI 1730571977).

Provider details

NPI number: 1730571977
Entity type: Individual
Primary specialty: PharmacistPharmacy Service Providers
Sex: Female
Sole proprietor: No
License: 59915 (CA)

Specialties & taxonomies

PharmacistPrimary183500000XLicense 59915 (CA)
Pharmacy Service Providers

Profile Score

Established profile(74/100 index)

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

Registry tenure38% of score
11 yrs in NPPES registry
Profile completeness38% of score
100% 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

29675 the Old Road North

Castaic, CA 91384-4570

Phone: (661) 702-6936

Fax: (661) 702-1542

Approximate (ZIP-level) locationGet directions

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Mailing address