Leonidas A. Johnson, OD
- Industry payments
- $273
- Affiliated sites
- 3
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 126 Fifth Street, Gonzales, CA 93926
- Practice phone
- Call (831) 675-2930
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Clinica de Salud del Valle de Salinas - Gonzales
FQHC - Main Site · Gonzales, California
Find Leonidas Johnson's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Leonidas A. Johnson is an optometrist in Gonzales, California
Leonidas Johnson practices at Clinica de Salud del Valle de Salinas - Gonzales in Gonzales, California.
Leonidas Johnson's NPI, 1912022641, was assigned on March 20, 2007. Leonidas Johnson graduated from Southern California College of Optometry in 1985. Leonidas Johnson holds California license 8254.
- NPI
- 1912022641NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1456431485
- NPI enumeration date
- March 20, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (831) 675-2930
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Leonidas A. Johnson practices at Clinica de Salud del Valle de Salinas - Gonzales in Gonzales, California
Leonidas Johnson's primary practice is Clinica de Salud del Valle de Salinas - Gonzales, at 126 Fifth Street, Gonzales, CA 93926. The practice phone is (831) 675-2930.
- Clinica de Salud del Valle de Salinas - Gonzales126 Fifth Street, Gonzales, CA 93926Phone(831) 675-2930
Source: Dmand AI Affiliation Data
Leonidas A. Johnson is affiliated with 3 sites of care and 2 medical groups
Leonidas Johnson's primary practice is Clinica de Salud del Valle de Salinas - Gonzales in Gonzales, California. The medical group on file is Clinica de Salud del Valle de Salinas. Dmand AI also links Leonidas Johnson to 1 more community health center, 1 group practice or clinic and 1 medical group, each named with a free account. Leonidas Johnson's employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Leonidas A. Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Leonidas Johnson practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Clinica de Salud del Valle de Salinas - Gonzales | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Leonidas A. Johnson is one of 7,206 optometrists in California
Optometrist is Leonidas Johnson's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Leonidas Johnson is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near Leonidas Johnson
Counts of optometrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Leonidas A. Johnson's patients have a median age of 31
Across all payers, Dmand AI patient panel data puts Leonidas Johnson's median patient age at 31, with 61% women.
Leonidas Johnson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 31
Patient panel by sex, all payers
- Women61%
- Men39%
Source: Dmand AI Patient Panel Data
How Leonidas A. Johnson takes part in Medicare
Leonidas Johnson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Leonidas A. Johnson received $273 in industry payments in 2025
CMS Open Payments shows 2 general payments to Leonidas Johnson from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $273.
Companies that paid Leonidas Johnson the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Leonidas A. Johnson graduated from Southern California College of Optometry
Leonidas Johnson graduated from Southern California College of Optometry in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Leonidas A. Johnson's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Leonidas A. Johnson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Leonidas A. Johnson's NPI number?
Leonidas A. Johnson's NPI number is 1912022641. It was assigned on March 20, 2007, and it is active in the NPI Registry.
What does Leonidas A. Johnson specialize in?
Leonidas A. Johnson is an optometrist in Gonzales, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Leonidas A. Johnson practice?
Leonidas Johnson practices at 126 Fifth Street, Gonzales, CA 93926. Leonidas Johnson's primary practice is Clinica de Salud del Valle de Salinas - Gonzales in Gonzales, California. Dmand AI also links Leonidas Johnson to 1 community health center, 1 group practice or clinic and 1 medical group.
What is Leonidas A. Johnson's office phone number?
The practice phone on file for Leonidas Johnson is (831) 675-2930.
What is Leonidas A. Johnson's medical license number?
Leonidas Johnson holds California license 8254.
What medical group is Leonidas A. Johnson part of?
Leonidas Johnson is linked to Clinica de Salud del Valle de Salinas. Dmand AI links Leonidas Johnson to 1 more medical group.
Does Leonidas A. Johnson accept Medicare?
Yes. CMS lists Leonidas Johnson as accepting Medicare assignment.
Where did Leonidas A. Johnson go to medical school?
Leonidas Johnson graduated from Southern California College of Optometry in 1985.
Has Leonidas A. Johnson received payments from drug or device companies?
CMS Open Payments shows $273 in general payments to Leonidas Johnson from 1 company from 2025 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Leonidas A. Johnson been practicing?
Leonidas Johnson graduated from medical school in 1985, 41 years ago.
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