Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Dr. Simon Chao, Pllc

Q: What is the NPI number for Dr. Simon Chao, Pllc?

The NPI for Dr. Simon Chao, Pllc is 1902381510, a Type 2 (organization) record in the CMS NPPES registry.

Electrodiagnostic Medicine Physician in Boston, MA · enumerated 2018 · authorized official Simon Chao, Sole Mbr.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1902381510

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Dr. Simon Chao, Pllc

Practice address 33 Upton St Unit 3, Boston, MA, 02118

Phone (215) 668-4693

Enumeration date Sep 28, 2018

Last updated in NPPES Sep 28, 2018

Taxonomy & classification

204R00000X Electrodiagnostic Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Simon Chao

Title Sole Mbr

Phone (215) 668-4693

Other identifiers

Identifier	Type	State	Issuer
238724	Other	MA	MEDICAL LIC

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Dr. Simon Chao, Pllc?

The NPI for Dr. Simon Chao, Pllc is 1902381510, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Dr. Simon Chao, Pllc?

NPPES lists Simon Chao (Sole Mbr) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-09-28.