Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Naum Spiegel, MD
Urology Physician in Ukiah, CA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1710973623
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Registry record
Entity type Individual (Type 1)
Name Dr. Naum Spiegel
Credential MD
Sex Male
Practice address 240 Hospital Dr, Ukiah, CA, 95482
Phone (707) 462-1928
Fax (707) 462-8642
Enumeration date Sep 26, 2005
Last updated in NPPES Nov 7, 2023
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 |
|---|---|---|---|
| 340017850 | Other | VA | RAILROAD MEDICARE PIN |
| G79559 | Other | CA | CALIFORNIA MEDICAL LICENSE |
| Q029896 | Medicaid | TN | - |
| 007500441 | Medicaid | VA | - |
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
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.
What specialty is Naum Spiegel?
Naum Spiegel is registered in NPPES with the primary taxonomy of Urology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Keith F. Korver, M.D., Inc. Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Ukiah, CA NPI 1134174295 Northern California Medical Assoc Inc Cardiovascular Disease Physician · Ukiah, CA NPI 1306043245 Hendrik Ryan Tan Foot & Ankle Surgery Podiatrist · Ukiah, CA NPI 1316561871 Adventist Health Physicians Network Urology Physician · Ukiah, CA NPI 1649909458 Sarah Rouse Family Nurse Practitioner · Ukiah, CA NPI 1285499749
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-07.