Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Harold H Tsai, M.D.
Urology Physician in Naples, FL · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1003845504
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Registry record
Entity type Individual (Type 1)
Name Dr. Harold H Tsai
Credential M.D.
Sex Male
Practice address 11181 Health Park Blvd Ste 1115, Naples, FL, 34110
Phone (239) 597-4440
Fax (239) 597-4441
Enumeration date Jun 30, 2006
Last updated in NPPES Mar 17, 2018
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 6220315 | Other | FL | CIGNA PROVIDER # |
| 5406598 | Other | FL | AETNA PROVIDER # |
| 55770 | Other | FL | BCBS OF FL PROVIDER # |
| P00445997 | Other | FL | RAILROAD MEDICARE |
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.
Frequently asked questions
What is the NPI number for Harold Tsai?
The National Provider Identifier (NPI) for Harold Tsai is 1003845504, a Type 1 (individual) record in the CMS NPPES registry.
Where does Harold Tsai practice?
The practice location on file with NPPES is in Naples, FL. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Yohani Torres Physician Assistant · Naples, FL NPI 1942247697 William Figlesthaler Urology Physician · Naples, FL NPI 1255379277 Luciano Boemi, M.D., P.A. Specialist · Naples, FL NPI 1235373937 Laura Chang Kit Urology Physician · Naples, FL NPI 1790098333 Miami Urology & Sexual Wellness Institute, P.A. Urology Physician · Naples, FL NPI 1124458641 Jennifer Anderson Family Nurse Practitioner · Naples, FL NPI 1922806033
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-17.