Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. May Lynn Siu, DDS

Pediatric Dentistry in Newburgh, NY · enumerated 2020.

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

National Provider Identifier

1780204313

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Registry record

Entity type Individual (Type 1)

Name Dr. May Lynn Siu

Credential DDS

Sex Female

Practice address 5 Hdsn Vly Prof Plz, Newburgh, NY, 12550

Phone (845) 562-5570

Enumeration date Apr 23, 2020

Last updated in NPPES Aug 15, 2023

Taxonomy & licenses

1223P0221X Pediatric Dentistry Dental Providers · License 22DI02910400 (NJ) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

1223P0221X Pediatric Dentistry Dental Providers · License 062570 (NY) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

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

Is NPI 1780204313 active?

Yes, as of the latest NPPES snapshot, NPI 1780204313 is active (record last updated 2023-08-15).

How do I verify May Siu's NPI record?

Cross-check NPI 1780204313 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Maria Cohen Pediatric Dentistry · Newburgh, NY NPI 1356727242 Sam Na General Practice Dentistry · Newburgh, NY NPI 1093160608 Madeline Riley Social Worker · Newburgh, NY NPI 1700368610 Sarah Hicks Social Worker · Newburgh, NY NPI 1083198881 Samantha Scapoli Social Worker · Newburgh, NY NPI 1700360872 Smile Dentist P.C. Dentist · Newburgh, NY NPI 1851868194 Thomas Riley Pediatric Nurse Practitioner · Newburgh, NY NPI 1366900748 Jessica Pforte Mental Health Counselor · Newburgh, NY NPI 1053879205

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-08-15.