What is Nan Sung Chu's NPI number?

Nan Sung Chu's National Provider Identifier (NPI) is 1023275385, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Nan Sung Chu's specialty?

Nan Sung Chu is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).

Where is Nan Sung Chu located?

Nan Sung Chu's practice location on file with NPPES is 18 Crecent Hollow Ct, Ramsey, NJ 07446-2661.

What is Nan Sung Chu's phone number?

The practice phone number listed in the NPPES registry for Nan Sung Chu is (201) 818-3938.

Is Nan Sung Chu's NPI active?

Yes — Nan Sung Chu's NPI (1023275385) is active in the NPPES registry as of the last update on 2026-05-31.

IndividualActive

Nan Sung Chu, MD

NPI 1023275385 · General Practice Physician · Ramsey, NJ

Nan Sung Chu, MD is a General Practice Physician provider in Ramsey, NJ (NPI 1023275385).

Provider details

NPI number: 1023275385
Entity type: Individual
Primary specialty: General Practice PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: Yes
License: 25MA02141400 (NJ)

Specialties & taxonomies

General Practice PhysicianPrimary208D00000XLicense 25MA02141400 (NJ)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(87/100 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

18 Crecent Hollow Ct

Ramsey, NJ 07446-2661

Phone: (201) 818-3938

Fax: (201) 818-3938

Street-level locationGet directions

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Mailing address