Dr. Charles Sanford Johnson Jr., MD
- Medicare services, 2021
- 484
- Part D claims, 2021
- 421
- Industry payments
- $95
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 2545 W Hammer Ln, Stockton, CA 95209-2839
- Practice phone
- Call (209) 957-7050
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Stockton Medical Plaza Specialty Care
Multi-specialty group site · Stockton, California
Find Dr. 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.
Dr. Charles Sanford Johnson Jr. is an otolaryngologist in French Camp, California
Dr. Johnson practices at Stockton Medical Plaza Specialty Care in Stockton, California.
Dr. Johnson's NPI, 1831138106, was assigned on June 5, 2006. Dr. Johnson graduated from Keck School of Medicine of USC in 1981. Dr. Johnson's California license number on file is G566880.
- NPI
- 1831138106NPI Registry (opens in a new tab)
- NPI enumeration date
- June 5, 2006
- NPI status
- Active
- Practice phone
- (209) 957-7050
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Charles Sanford Johnson Jr. practices in Stockton and French Camp
Dr. Johnson's primary practice is Stockton Medical Plaza Specialty Care, at 2545 W Hammer Ln, Stockton, CA 95209-2839. The practice phone is (209) 957-7050. The NPI Registry lists Dr. Johnson's practice address as 500 W Hospital Rd, French Camp, CA 95231.
- Stockton Medical Plaza Specialty CarePrimary2545 W Hammer Ln, Stockton, CA 95209-2839Phone(209) 957-7050
- NPI Registry address500 W Hospital Rd, French Camp, CA 95231 · San Joaquin CountyPhone(209) 957-7050
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Charles Sanford Johnson Jr. is affiliated with 1 site of care and 1 medical group
Dr. Johnson's primary practice is Stockton Medical Plaza Specialty Care in Stockton, California. Dmand AI also links Dr. Johnson to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Charles Sanford Johnson Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Stockton Medical Plaza Specialty Care | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Charles Sanford Johnson Jr. is one of 1,107 otolaryngologists in California
Otolaryngology is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 207Y00000X. Dr. Johnson is board certified in otolaryngology by the American Board of Otolaryngology - Head and Neck Surgery. Dr. Johnson has a license on file in California.
Specialties and state licenses
- Otolaryngology, CaliforniaPrimary
Otolaryngologists near Dr. Johnson
Counts of otolaryngologists 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
Dr. Charles Sanford Johnson Jr. billed Medicare for 484 services in 2021
CMS data shows 484 Medicare services from Dr. Johnson across 6 procedure codes in 2021. Medicare paid $18,942 for them. Every service was in an office.
Dr. Johnson's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 8892021: 26970%
- Surgery
- 2020: 5132021: 19163%
- Tests and treatments
- 2020: 622021: 2461%
Dr. Johnson compared with the California median for otolaryngologists, 2021
- Dr. Johnson
- California median
- Medicare services
- 484vs 66627% below
- Part D claims
- 421vs 1183.6 times
Medians across 1,045 otolaryngologists in California with Dmand AI profiles that report each measure.
Dr. Johnson's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Johnson?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Johnson and other otolaryngologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Charles Sanford Johnson Jr.'s patients have a median age of 60
Across all payers, Dmand AI patient panel data puts Dr. Johnson's median patient age at 60, with 53% women.
Dr. 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 60
Patient panel by sex, all payers
- Women53%
- Men47%
Source: Dmand AI Patient Panel Data
Dr. Charles Sanford Johnson Jr. wrote 421 Medicare Part D claims in 2021
In 2021, Dr. Johnson wrote 421 Medicare Part D claims. They cover 9 drugs, with $12,153 in total drug cost. In 2020, CMS named 960 claims across 19 drugs.
Dr. Johnson's most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 9602021: 42156%
Drugs named by CMS: 9 in 2021, 19 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Charles Sanford Johnson Jr. received $95 in industry payments from 2016 to 2020
CMS Open Payments shows 4 general payments to Dr. Johnson from 3 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 100% of the total. Intersect ENT, Inc. paid the most, $58.
General payments to Dr. Johnson by program year, 2016 to 2020
Companies that paid Dr. Johnson the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Charles Sanford Johnson Jr. graduated from Keck School of Medicine of USC
Dr. Johnson graduated from Keck School of Medicine of USC in 1981.
- Medical school
- Board certified in otolaryngology
Source: Dmand AI Professional Profile Data
Dr. Charles Sanford Johnson Jr. accepts plans from 2 insurance carriers
Dr. Johnson is in network with 2 carriers, including Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Massachusetts
- HCSC
Plan types Dr. Johnson accepts, by number of carriers
- Medicare2
- PPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Charles Sanford Johnson Jr.'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 Dr. Charles Sanford Johnson Jr.
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Charles Sanford Johnson Jr.'s NPI number?
Dr. Charles Sanford Johnson Jr.'s NPI number is 1831138106. It was assigned on June 5, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Charles Sanford Johnson Jr.?
Dr. Charles Sanford Johnson Jr. is an otolaryngologist in French Camp, California. The primary specialty in the NPI Registry is Otolaryngology Physician (taxonomy code 207Y00000X).
Where does Dr. Charles Sanford Johnson Jr. practice?
Dr. Johnson practices at 2545 W Hammer Ln, Stockton, CA 95209-2839. Dr. Johnson also practices at 500 W Hospital Rd, French Camp, CA 95231. Dr. Johnson's primary practice is Stockton Medical Plaza Specialty Care in Stockton, California. Dmand AI also links Dr. Johnson to 1 medical group.
What is Dr. Charles Sanford Johnson Jr.'s office phone number?
The practice phone on file for Dr. Johnson is (209) 957-7050.
What is Dr. Charles Sanford Johnson Jr.'s medical license number?
Dr. Johnson's California license number on file is G566880.
Does Dr. Charles Sanford Johnson Jr. accept Medicare?
Yes. CMS data shows Dr. Johnson billed Medicare for 484 services in 2021.
Is Dr. Charles Sanford Johnson Jr. board certified?
Yes. Dr. Johnson is board certified in otolaryngology by the American Board of Otolaryngology - Head and Neck Surgery.
What services does Dr. Charles Sanford Johnson Jr. bill to Medicare?
In 2021, Dr. Johnson's most billed Medicare services were surgery: ear (69210), office visit, established patient (99213) and office visit, established patient (99214).
Where did Dr. Charles Sanford Johnson Jr. go to medical school?
Dr. Johnson graduated from Keck School of Medicine of USC in 1981.
What drugs does Dr. Charles Sanford Johnson Jr. prescribe most?
In 2021 Medicare Part D data, Dr. Johnson's most prescribed drugs by claims were Fluticasone Propionate, Omeprazole and Pantoprazole Sodium.
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Has Dr. Charles Sanford Johnson Jr. received payments from drug or device companies?
CMS Open Payments shows $95 in general payments to Dr. Johnson from 3 companies from 2016 to 2020. The largest total came from Intersect ENT, Inc.
How long has Dr. Charles Sanford Johnson Jr. been practicing?
Dr. Johnson graduated from medical school in 1981, 45 years ago.
What insurance does Dr. Charles Sanford Johnson Jr. accept?
Dr. Johnson is in network with 2 carriers, including Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
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