Michael John Castagno, PHARM.D.
Pharmacist · Stockton, CA
Michael John Castagno, PHARM.D. is a pharmacist with a practice address in Stockton, California, and NPI 1821095704, issued on Jul 7, 2005. Check the license (California PHY45684, 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
- Michael John Castagno
- Credential
- PHARM.D.
- Primary taxonomy
- Pharmacist 183500000X
- License number
- PHY45684 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1530 Waterloo RD, Stockton, CA 95205
- Phone
- (209) 466-2522
- Enumerated
- Jul 7, 2005
- Record last updated
- Sep 10, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (209) 466-2589
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 32,533 in California → Look up another NPI →
Verify Michael John Castagno in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PHY45684Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Michael John Castagno among 32,533 pharmacist records in California
Michael John Castagno, PHARM.D. is one of 32,533 pharmacist records with a practice address in California. 15% 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, over 99% newer
- In a Medicare fileNo · 15% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2015 · 76% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 183500000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
305 pharmacist records list a practice address in Stockton
They are 305 of the 9,522 NPPES records with a practice address in Stockton, and 32,533 pharmacist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 32,533 in California → Every provider in Stockton → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Joan Chang, PHARMDStockton, CA 952051033462619
- Desiree Chipman, PHARM.DStockton, CA 952051114200367
- Crystal MarrufoStockton, CA 952051114275856
- Robert MiglioriStockton, CA 952051932324431
- Pang Moua, RPHStockton, CA 952051417397498
- Thach Nguyen, PHARM D.Stockton, CA 952051194016568
- Ryan Nguyen, RPHStockton, CA 952051508234139
- Vickie Nguyen, PHARMD, RPHStockton, CA 952051255883856
Common questions
What is Michael John Castagno, PHARM.D.'s NPI number?
Michael John Castagno, PHARM.D.'s National Provider Identifier (NPI) is 1821095704, issued on Jul 7, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Michael John Castagno, PHARM.D. located?
The NPPES record lists a practice address at 1530 Waterloo RD, Stockton, CA, 95205. Phone: (209) 466-2522. Providers update this record themselves, so call before visiting.
How can I verify Michael John Castagno, PHARM.D.'s license?
NPPES lists California license number PHY45684, 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.