John M. Giambalvo
Registered Nurse · Chico, CA
John M. Giambalvo is a registered nurse with a practice address in Chico, California, and NPI 1124352422, issued on Sep 21, 2009. Check the license (California 757495, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John M. Giambalvo
- Primary taxonomy
- Registered Nurse 163W00000X
- License number
- 757495 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2639 Forest Ave, Chico, CA 95928
- Phone
- (530) 899-2255
- Enumerated
- Sep 21, 2009
- Record last updated
- Sep 21, 2009 (not updated in 17 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest registered nurse records → All 13,506 in California → Look up another NPI →
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Verify John M. Giambalvo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 757495Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John M. Giambalvo among 13,506 registered nurse records in California
John M. Giambalvo is one of 13,506 registered nurse records with a practice address in California. 3% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2009, is newer than 14% of them.
- NPI issued2009 · 14% of these records are older, 84% newer
- In a Medicare fileNo · 3% of these records are
- In the CMS Doctors and Clinicians fileNo · 1% of these records are
- Record last updated2009 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 163W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
95 registered nurse records list a practice address in Chico
They are 95 of the 3,684 NPPES records with a practice address in Chico, and 13,506 registered nurse records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 13,506 in California → Every provider in Chico → Registered Nurse nationwide →
The 8 registered nurse records with the nearest ZIP codes
- Eve Bathrick, RNChico, CA 959281093520447
- Laura Bostic ScottChico, CA 959281114442878
- Megan Dalling, RNChico, CA 959281104473446
- Karen DuvalChico, CA 959281619259496
- Kylie Hennig, RNChico, CA 959281831306216
- Adrienne LawingChico, CA 959281487459939
- Molly Lopez, RNChico, CA 959281053269712
- Teresa Martens, RNChico, CA 959281669321626
Common questions
What is John M. Giambalvo's NPI number?
John M. Giambalvo's National Provider Identifier (NPI) is 1124352422, issued on Sep 21, 2009. An NPI identifies a provider in billing; it is not a license.
Where is John M. Giambalvo located?
The NPPES record lists a practice address at 2639 Forest Ave, Chico, CA, 95928. Phone: (530) 899-2255. Providers update this record themselves, so call before visiting.
How can I verify John M. Giambalvo's license?
NPPES lists California license number 757495, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.