Dr. David Matthew Johnson, MD
- Part D claims, 2024
- 47
- Affiliated sites
- 2
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2021
- Practice address
- 5850 S Main St, Los Angeles, CA 90003
- Practice phone
- Call (323) 846-4265
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Hubert H. Humphrey Comprehensive Health Center
Urgent Care Center · Los Angeles, California
Find Dr. Johnson's professional email, personal email and mobile number
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Dr. David Matthew Johnson is a psychiatrist in Los Angeles, California
Dr. Johnson practices at Hubert H. Humphrey Comprehensive Health Center in Los Angeles, California.
Dr. Johnson's NPI, 1942889399, was assigned on April 5, 2021. Dr. Johnson graduated from Howard University College Of Medicine in 2021. Dr. Johnson holds California license A199442.
- NPI
- 1942889399NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5890280937
- NPI enumeration date
- April 5, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (323) 846-4265
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Matthew Johnson practices at Hubert H. Humphrey Comprehensive Health Center in Los Angeles, California
Dr. Johnson's primary practice is Hubert H. Humphrey Comprehensive Health Center, at 5850 S Main St, Los Angeles, CA 90003. The practice phone is (323) 846-4265.
- Hubert H. Humphrey Comprehensive Health Center5850 S Main St, Los Angeles, CA 90003Phone(323) 846-4265
Source: Dmand AI Affiliation Data
Dr. David Matthew Johnson is affiliated with 2 sites of care and 1 medical group
Dr. Johnson's primary practice is Hubert H. Humphrey Comprehensive Health Center in Los Angeles, California. The medical group on file is GENESIS Older Adult Program (Los Angeles County Department of Mental Health). Dmand AI also links Dr. Johnson to 1 more breast imaging center, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David Matthew 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 |
|---|---|
| Hubert H. Humphrey Comprehensive Health 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 Matthew 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 internal medicine by the American Board of Internal Medicine. 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 Matthew Johnson's patients have a median age of 37
Across all payers, Dmand AI patient panel data puts Dr. Johnson's median patient age at 37, with 27% 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 37
Patient panel by sex, all payers
- Women27%
- Men73%
Source: Dmand AI Patient Panel Data
Dr. David Matthew Johnson wrote 47 Medicare Part D claims in 2024
In 2024, Dr. Johnson wrote 47 Medicare Part D claims. 100% of them were for generic drugs.
Drug classes CMS tracks in Dr. Johnson's Part D claims, 2024
- Antipsychotics, patients 65 and over57%27 of 47 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. David Matthew Johnson offers telehealth to Medicare patients
Dr. Johnson accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Johnson as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. David Matthew Johnson graduated from Howard University College Of Medicine
Dr. Johnson graduated from Howard University College Of Medicine in 2021.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. David Matthew 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 (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 Dr. David Matthew 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 Matthew Johnson's NPI number?
Dr. David Matthew Johnson's NPI number is 1942889399. It was assigned on April 5, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. David Matthew Johnson?
Dr. David Matthew Johnson is a psychiatrist in Los Angeles, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. David Matthew Johnson practice?
Dr. Johnson practices at 5850 S Main St, Los Angeles, CA 90003. Dr. Johnson's primary practice is Hubert H. Humphrey Comprehensive Health Center in Los Angeles, California. Dmand AI also links Dr. Johnson to 1 breast imaging center.
What is Dr. David Matthew Johnson's office phone number?
The practice phone on file for Dr. Johnson is (323) 846-4265.
What is Dr. David Matthew Johnson's medical license number?
Dr. Johnson holds California license A199442.
What medical group is Dr. David Matthew Johnson part of?
Dr. Johnson is linked to GENESIS Older Adult Program (Los Angeles County Department of Mental Health).
Does Dr. David Matthew Johnson accept Medicare?
Yes. CMS lists Dr. Johnson as accepting Medicare assignment.
Does Dr. David Matthew Johnson offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Johnson as offering telehealth services.
Is Dr. David Matthew Johnson board certified?
Yes. Dr. Johnson is board certified in internal medicine by the American Board of Internal Medicine.
Where did Dr. David Matthew Johnson go to medical school?
Dr. Johnson graduated from Howard University College Of Medicine in 2021.
How long has Dr. David Matthew Johnson been practicing?
Dr. Johnson graduated from medical school in 2021, 5 years ago.
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