Dr. Jonathan Diaz, MD, MPH
- Part D claims, 2024
- 971
- Hospital affiliations
- 1
- Industry payments
- $21
- State license
- 1
- Year NPI issued
- 2020
- Practice address
- 2051 Marengo St, Room C2K100, Los Angeles, CA 90033
- Practice phone
- Call (323) 226-2800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Diaz'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. Jonathan Diaz is a family medicine physician in Los Angeles, California
Dr. Diaz practices at Los Angeles General Medical Center in Los Angeles, California, part of County of Los Angeles.
Dr. Diaz's NPI, 1962023275, was assigned on April 28, 2020. Dr. Diaz holds California license A185279.
- NPI
- 1962023275NPI Registry (opens in a new tab)
- NPI enumeration date
- April 28, 2020
- NPI status
- Active
- Practice phone
- (323) 226-2800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Jonathan Diaz practices at Los Angeles General Medical Center in Los Angeles, California
Dr. Diaz's primary practice is Los Angeles General Medical Center, at 2051 Marengo St, Room C2K100, Los Angeles, CA 90033 in Los Angeles County. The practice phone is (323) 226-2800.
- Los Angeles General Medical Center2051 Marengo St, Room C2K100, Los Angeles, CA 90033 · Los Angeles CountyPhone(323) 226-2800
Source: Dmand AI Affiliation Data
Dr. Jonathan Diaz is affiliated with 1 site of care
Dr. Diaz's primary practice is Los Angeles General Medical Center in Los Angeles, California, part of County of Los Angeles. Dr. Diaz's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jonathan Diaz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Diaz practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Los Angeles General Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jonathan Diaz is one of 15,680 family medicine physicians in California
Family medicine is Dr. Diaz's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Diaz is licensed in California.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
Family medicine physicians near Dr. Diaz
Counts of family medicine physicians 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. Jonathan Diaz's patients have a median age of 58
Across all payers, Dmand AI patient panel data puts Dr. Diaz's median patient age at 58, with 67% women.
Dr. Diaz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women67%
- Men33%
Source: Dmand AI Patient Panel Data
Dr. Jonathan Diaz wrote 971 Medicare Part D claims in 2024
In 2024, Dr. Diaz wrote 971 Medicare Part D claims for 145 patients. 90% of them were for generic drugs. CMS names the drug for 665 of them, across 24 drugs with 11 or more claims each, at $7,989 in total drug cost. In 2023, CMS named 44 claims across 3 drugs.
Dr. Diaz's Part D claims by kind of drug, 2024
- Generic873 claims90%
- Brand-name85 claims9%
- Other13 claims1%
Dr. Diaz's most prescribed drugs by claims, 2024
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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 442024: 6651411%
Drugs named by CMS: 24 in 2024, 3 in 2023.
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. Jonathan Diaz received $21 in industry payments in 2023
CMS Open Payments shows 1 general payment to Dr. Diaz from 1 drug or device company in 2023. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $21.
Companies that paid Dr. Diaz the most, 2023 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Jonathan Diaz'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Jonathan Diaz
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. Jonathan Diaz's NPI number?
Dr. Jonathan Diaz's NPI number is 1962023275. It was assigned on April 28, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Jonathan Diaz?
Dr. Jonathan Diaz is a family medicine physician in Los Angeles, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Jonathan Diaz practice?
Dr. Diaz practices at 2051 Marengo St, Room C2K100, Los Angeles, CA 90033. Dr. Diaz's primary practice is Los Angeles General Medical Center in Los Angeles, California, part of County of Los Angeles.
What is Dr. Jonathan Diaz's office phone number?
The practice phone on file for Dr. Diaz is (323) 226-2800.
What is Dr. Jonathan Diaz's medical license number?
Dr. Diaz holds California license A185279.
Which hospitals is Dr. Jonathan Diaz affiliated with?
Dr. Diaz practices at Los Angeles General Medical Center in Los Angeles, California.
What drugs does Dr. Jonathan Diaz prescribe most?
In 2024 Medicare Part D data, Dr. Diaz's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Omeprazole.
Has Dr. Jonathan Diaz received payments from drug or device companies?
CMS Open Payments shows $21 in general payments to Dr. Diaz from 1 company from 2023 to 2023. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Jonathan Diaz been practicing?
Dr. Diaz graduated from medical school in 2020, 6 years ago.
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