Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Gerald Stanley Friedman, MD
Nephrology Physician in Upland, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1366474322
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Registry record
Entity type Individual (Type 1)
Name Gerald Stanley Friedman
Credential MD
Sex Male
Practice address 600 N 13th Ave, Ste 100, Upland, CA, 91786
Phone (909) 373-1799
Fax (909) 373-0428
Enumeration date Jul 7, 2006
Last updated in NPPES Feb 24, 2011
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 |
|---|---|---|---|
| 00G198350 | 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
How do I verify Gerald Friedman's NPI record?
Cross-check NPI 1366474322 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1366474322 active?
Yes, as of the latest NPPES snapshot, NPI 1366474322 is active (record last updated 2011-02-24).
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-02-24.