What is Sydney Kuo's NPI number?

Sydney Kuo's National Provider Identifier (NPI) is 1619817723, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Sydney Kuo's specialty?

Sydney Kuo is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Sydney Kuo located?

Sydney Kuo's practice location on file with NPPES is 801 Massachusetts Ave Fl 6, Boston, MA 02118-2605.

What is Sydney Kuo's phone number?

The practice phone number listed in the NPPES registry for Sydney Kuo is (617) 414-5951.

Is Sydney Kuo's NPI active?

Yes — Sydney Kuo's NPI (1619817723) is active in the NPPES registry as of the last update on 2026-04-01.

IndividualActive

Sydney Kuo

NPI 1619817723 · Internal Medicine Physician · Boston, MA

Sydney Kuo is a Internal Medicine Physician provider in Boston, MA (NPI 1619817723).

Provider details

NPI number: 1619817723
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Sole proprietor: No
License: 207R00000X (MA)

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense 207R00000X (MA)
Allopathic & Osteopathic Physicians

Profile Score

Established profile(53/100 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
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

801 Massachusetts Ave Fl 6

Boston, MA 02118-2605

Phone: (617) 414-5951

Fax: (617) 414-9251

Street-level locationGet directions

More MA providers

Mailing address