Dr. David Sidney Johnson, MD, PhD
- Part D claims, 2024
- 137
- Hospital affiliations
- 2
- Medical group
- 1
- Insurance carriers
- 2
- State license
- 1
- Practice address
- 3840 Homestead Road, Santa Clara, CA 95051
- Practice phone
- Call (408) 851-4850
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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. David Sidney Johnson is a psychiatrist in Santa Clara, California
Dr. Johnson practices at Behavioral Health Center at Santa Clara Medical Center in Santa Clara, California, part of Kaiser Permanente.
Dr. Johnson's NPI, 1255395331, was assigned on April 14, 2006. Dr. Johnson graduated from UC San Diego School of Medicine in 1996. Dr. Johnson holds California license A65870.
- NPI
- 1255395331NPI Registry (opens in a new tab)
- NPI enumeration date
- April 14, 2006
- NPI status
- Active
- Practice phone
- (408) 851-4850
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. David Sidney Johnson practices at Behavioral Health Center at Santa Clara Medical Center in Santa Clara, California
Dr. Johnson's primary practice is Behavioral Health Center at Santa Clara Medical Center, at 3840 Homestead Road, Santa Clara, CA 95051 in Santa Clara County. The practice phone is (408) 851-4850.
- Behavioral Health Center at Santa Clara Medical Center3840 Homestead Road, Santa Clara, CA 95051 · Santa Clara CountyPhone(408) 851-4850
Source: Dmand AI Affiliation Data
Dr. David Sidney Johnson is affiliated with 2 sites of care and 1 medical group
Dr. Johnson's primary practice is Behavioral Health Center at Santa Clara Medical Center in Santa Clara, California, part of Kaiser Permanente. Dr. Johnson is also affiliated with Santa Clara Valley Medical Center. The medical group on file is The Permanente Medical Group, Inc.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David Sidney Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Behavioral Health Center at Santa Clara Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David Sidney Johnson is one of 6,803 psychiatrists in California
Psychiatry is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Johnson is board certified in psychiatry by the American Board of Psychiatry and Neurology. Dr. Johnson is licensed in California.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
Psychiatrists near Dr. Johnson
Counts of psychiatrists 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. David Sidney Johnson's patients have a median age of 41
Across all payers, Dmand AI patient panel data puts Dr. Johnson's median patient age at 41, with 64% 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 41
Patient panel by sex, all payers
- Women64%
- Men34%
Source: Dmand AI Patient Panel Data
Dr. David Sidney Johnson wrote 137 Medicare Part D claims in 2024
In 2024, Dr. Johnson wrote 137 Medicare Part D claims for 26 patients. 94% of them were for generic drugs. CMS names the drug for 53 of them, across 4 drugs with 11 or more claims each, at $853 in total drug cost. In 2016, CMS named 39 claims across 3 drugs.
Dr. Johnson's Part D claims by kind of drug, 2024
- Generic129 claims94%
- Brand-name and other8 claims6%
Dr. Johnson's most prescribed drugs by claims, 2017
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Johnson's Part D claims, 2024
- Antipsychotics, patients 65 and over12%17 of 137 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 392017: 5336%
Drugs named by CMS: 4 in 2017, 3 in 2016.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. David Sidney Johnson graduated from UC San Diego School of Medicine
Dr. Johnson graduated from UC San Diego School of Medicine in 1996.
- Medical school
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. David Sidney Johnson accepts plans from 2 insurance carriers
Dr. Johnson is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Johnson accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. David Sidney 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 |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (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. David Sidney 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 Dr. David Sidney Johnson's NPI number?
Dr. David Sidney Johnson's NPI number is 1255395331. It was assigned on April 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David Sidney Johnson?
Dr. David Sidney Johnson is a psychiatrist in Santa Clara, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. David Sidney Johnson practice?
Dr. Johnson practices at 3840 Homestead Road, Santa Clara, CA 95051. Dr. Johnson's primary practice is Behavioral Health Center at Santa Clara Medical Center in Santa Clara, California, part of Kaiser Permanente.
What is Dr. David Sidney Johnson's office phone number?
The practice phone on file for Dr. Johnson is (408) 851-4850.
What is Dr. David Sidney Johnson's medical license number?
Dr. Johnson holds California license A65870.
Which hospitals is Dr. David Sidney Johnson affiliated with?
Dr. Johnson practices at Behavioral Health Center at Santa Clara Medical Center in Santa Clara, California. Dr. Johnson is also affiliated with Santa Clara Valley Medical Center.
What medical group is Dr. David Sidney Johnson part of?
Dr. Johnson is linked to The Permanente Medical Group, Inc.
Is Dr. David Sidney Johnson board certified?
Yes. Dr. Johnson is board certified in psychiatry by the American Board of Psychiatry and Neurology.
Where did Dr. David Sidney Johnson go to medical school?
Dr. Johnson graduated from UC San Diego School of Medicine in 1996.
What drugs does Dr. David Sidney Johnson prescribe most?
In 2017 Medicare Part D data, Dr. Johnson's most prescribed drugs by claims were Olanzapine, Benztropine Mesylate and Divalproex Sodium.
How long has Dr. David Sidney Johnson been practicing?
Dr. Johnson graduated from medical school in 1996, 30 years ago.
What insurance does Dr. David Sidney Johnson accept?
Dr. Johnson is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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