Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John Alexander Watson, RN
Registered Nurse in Glendora, CA · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1326632258
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Registry record
Entity type Individual (Type 1)
Name John Alexander Watson
Credential RN
Sex Male
Practice address 150 W Route 66, Glendora, CA, 91740
Phone (626) 852-5063
Fax (626) 852-5019
Enumeration date Feb 22, 2021
Last updated in NPPES Feb 22, 2021
Taxonomy & licenses
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam.
About the RN 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.
Frequently asked questions
What is the NPI number for John Watson?
The National Provider Identifier (NPI) for John Watson is 1326632258, a Type 1 (individual) record in the CMS NPPES registry.
Where does John Watson practice?
The practice location on file with NPPES is in Glendora, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → East Valley Hospital Medical Center General Acute Care Hospital · Glendora, CA NPI 1003807991 East Valley Pathology Medical Group Anatomic Pathology & Clinical Pathology Physician · Glendora, CA NPI 1831150127 Tony Hsieh Anatomic Pathology & Clinical Pathology Physician · Glendora, CA NPI 1114988763 Alfred Cook Emergency Medicine Physician · Glendora, CA NPI 1932166972 Lewis Coleman Anesthesiology Physician · Glendora, CA NPI 1811943665 East Valley Emergency Medical Associates, Inc. Emergency Medicine Physician · Glendora, CA NPI 1720022270 Intervalley Anesthesia Medical Corporation Anesthesiology Physician · Glendora, CA NPI 1801804208 Primero Anesthesia Services Medical Corporation Anesthesiology Physician · Glendora, CA NPI 1336157411
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-22.