Diana M. Johns, MD
Occupational Medicine Physician · Milpitas, CA
Diana M. Johns, MD is an occupational medicine physician with a practice address in Milpitas, California, and NPI 1639213564, issued on Feb 16, 2007. Check the license (California C041091, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Diana M. Johns
- Credential
- MD
- Primary taxonomy
- Occupational Medicine Physician 2083X0100X
- License number
- C041091 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1717 S Main St, Milpitas, CA 95035
- Phone
- (408) 957-5700
- Enumerated
- Feb 16, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (408) 957-5715
- Medicare enrollment
- Enrolled (PECOS I20190418002566); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical Branch At Galveston, 1982
- Entity
- Type 1 · individual
8 nearest occupational medicine physician records → All 415 in California → Look up another NPI →
Also registered at 1717 S Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Pushpa Krishnasami, MDFamily Medicine Physician1033156435
- Nga Le, PAMedical Physician Assistant1568593887
Verify Diana M. Johns in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C041091Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- American Current Care OF California A Medical CorporationGilroy, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diana M. Johns among 415 occupational medicine physician records in California
Diana M. Johns, MD is one of 415 occupational medicine physician records with a practice address in California. 30% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 43% of them.
- NPI issued2007 · 43% of these records are older, 31% newer
- In a Medicare fileYes · 30% of these records are
- In the CMS Doctors and Clinicians fileYes · 12% of these records are
- Graduated1982 · median 1995 among the 51 with a school on file
- Record last updated2007 · 75% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2083X0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Occupational Medicine Physician providers in California
There are 415 occupational medicine physician records in California.
All 415 in California → Every provider in Milpitas → Occupational Medicine Physician nationwide →
The 8 occupational medicine physician records with the nearest ZIP codes
- Peter Chiu, MDMilpitas, CA 950351689751513
- Ramon Garcia, MDMilpitas, CA 950351326125279
- Arvind Jaini, MDMilpitas, CA 950351437201654
- Daniel Polite, MDMilpitas, CA 950351760568695
- Julie Peltz, MDSanta Clara, CA 950511407933344
- Jerome Chester, MDCupertino, CA 950141366529299
- Jin Kim, MDCupertino, CA 950141760561401
- Liliana Sackett, MDCupertino, CA 950141356413009
Common questions
What is Diana M. Johns, MD's NPI number?
Diana M. Johns, MD's National Provider Identifier (NPI) is 1639213564, issued on Feb 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Diana M. Johns, MD located?
The NPPES record lists a practice address at 1717 S Main St, Milpitas, CA, 95035. Phone: (408) 957-5700. Providers update this record themselves, so call before visiting.
How can I verify Diana M. Johns, MD's license?
NPPES lists California license number C041091, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.