What is Frank Du's NPI number?

Frank Du's National Provider Identifier (NPI) is 1689855637, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Frank Du's specialty?

Frank Du is listed in the NPPES registry with a primary specialty of Case Management Registered Nurse (Nursing Service Providers).

Where is Frank Du located?

Frank Du's practice location on file with NPPES is 660 S Fair Oaks Ave, Sunnyvale, CA 94086-7913.

What is Frank Du's phone number?

The practice phone number listed in the NPPES registry for Frank Du is (408) 992-4938.

Is Frank Du's NPI active?

Yes — Frank Du's NPI (1689855637) is active in the NPPES registry as of the last update on 2007-11-19.

IndividualActive

Frank Du, R.N.

NPI 1689855637 · Case Management Registered Nurse · Sunnyvale, CA

Frank Du, R.N. is a Case Management Registered Nurse provider in Sunnyvale, CA (NPI 1689855637).

Provider details

NPI number: 1689855637
Entity type: Individual
Primary specialty: Case Management Registered NurseNursing Service Providers
Credential: R.N.
Sex: Male
Sole proprietor: No
License: 518414 (CA)

Specialties & taxonomies

Case Management Registered NursePrimary163WC0400XLicense 518414 (CA)
Nursing Service Providers

Profile Score

Detailed profile(88/100 index)

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

Registry tenure38% of score
18 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

660 S Fair Oaks Ave

Sunnyvale, CA 94086-7913

Phone: (408) 992-4938

Fax: (408) 992-4901

Street-level locationGet directions

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Mailing address