Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Thomas Joseph Rydz, M.D.
Surgery Physician in Eureka, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1184781536
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Registry record
Entity type Individual (Type 1)
Name Thomas Joseph Rydz
Credential M.D.
Sex Male
Practice address 2321 Harrison Ave, Eureka, CA, 95501
Phone (707) 445-3660
Fax (707) 476-8431
Enumeration date Jan 3, 2007
Last updated in NPPES Nov 10, 2021
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 |
|---|---|---|---|
| 00G716950 | Medicaid | CA | - |
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 specialty is Thomas Rydz?
Thomas Rydz is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Thomas Loncar Surgery Physician · Eureka, CA NPI 1710915319 John Vanspeybroeck Surgery Physician · Eureka, CA NPI 1497832190 Michael Palmer Surgery Physician · Eureka, CA NPI 1669539862 Amber Hoffman Family Nurse Practitioner · Eureka, CA NPI 1174651913 Kathryn Stollmeyer Physician Assistant · Eureka, CA NPI 1033315635 Michael A. Palmer, M.D., F.A.C.S. A Medical Corporation Vascular Surgery Physician · Eureka, CA NPI 1255586194 Huy Trieu Surgery Physician · Eureka, CA NPI 1639404353 Elesha Hernandez Registered Nurse · Eureka, CA NPI 1194693135
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-10.