Maria Diaz, RN
Registered Nurse · Modesto, CA
Maria Diaz, RN is a registered nurse with a practice address in Modesto, California, and NPI 1013065549, issued on Jan 8, 2007. Check the license (California 443604, 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
- Maria Diaz
- Credential
- RN
- Primary taxonomy
- Registered Nurse 163W00000X
- License number
- 443604 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1540 Florida Ave, Modesto, CA 95350
- Phone
- (209) 544-3236
- Enumerated
- Jan 8, 2007
- Entity
- Type 1 · individual
Also registered at 1540 Florida Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Maria Diaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 443604Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
110 registered nurse records list a practice address in Modesto
They are 110 of the 9,262 NPPES records with a practice address in Modesto, and 13,506 registered nurse records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 110 in Modesto → All 13,506 in California → Every provider in Modesto →
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Common questions
What is Maria Diaz, RN's NPI number?
Maria Diaz, RN's National Provider Identifier (NPI) is 1013065549, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Maria Diaz, RN located?
The NPPES record lists a practice address at 1540 Florida Ave, Modesto, CA, 95350. Phone: (209) 544-3236. Providers update this record themselves, so call before visiting.
How can I verify Maria Diaz, RN's license?
NPPES lists California license number 443604, 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), loaded Aug 27, 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) 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 27, 2026.