Dr. David J. Hernandez, MD
- Medicare services, 2023
- 179
- Part D claims, 2024
- 86
- Hospital affiliations
- 1
- Industry payments
- $96
- Medical group
- 1
- Practice address
- 7300 Medical Center Dr, West Hills, CA 91307
- Practice phone
- Call (818) 676-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hernandez'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 J. Hernandez is an internist in West Hills, California
Dr. Hernandez practices at UCLA West Valley Medical Center in West Hills, California, part of University of California Health.
Dr. Hernandez's NPI, 1396756912, was assigned on August 10, 2006. Dr. Hernandez graduated from University of Texas Medical School at San Antonio in 1974. Dr. Hernandez holds California license G48343.
- NPI
- 1396756912NPI Registry (opens in a new tab)
- NPI enumeration date
- August 10, 2006
- NPI status
- Active
- Practice phone
- (818) 676-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 78
- Medical school graduation
- 1974
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. David J. Hernandez practices at UCLA West Valley Medical Center in West Hills, California
Dr. Hernandez's primary practice is UCLA West Valley Medical Center, at 7300 Medical Center Dr, West Hills, CA 91307 in Los Angeles County. The practice phone is (818) 676-4000.
- UCLA West Valley Medical Center7300 Medical Center Dr, West Hills, CA 91307 · Los Angeles CountyPhone(818) 676-4000
Source: Dmand AI Affiliation Data
Dr. David J. Hernandez is affiliated with 2 sites of care and 1 medical group
Dr. Hernandez's primary practice is UCLA West Valley Medical Center in West Hills, California, part of University of California Health. The medical group on file is David J Hernandez MD Medical Clinic. Dmand AI also links Dr. Hernandez to 1 more group practice or clinic, 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 J. Hernandez's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hernandez practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCLA West Valley Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across University of California Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. David J. Hernandez is one of 16,751 internists in California
Internal medicine is Dr. Hernandez's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Hernandez is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Hernandez
Counts of internists 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 J. Hernandez billed Medicare for 179 services in 2023
CMS data shows 179 Medicare services from Dr. Hernandez across 3 procedure codes in 2023. Medicare paid $12,426 for them. Every service was in an office.
Dr. Hernandez's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 3632023: 17951%
Dr. Hernandez compared with the California median for internists, 2023
- Dr. Hernandez
- California median
- Medicare services
- 179vs 36150% below
- Part D claims
- 11vs 42197% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Hernandez's most billed Medicare procedure codes, 2023
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. Hernandez?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hernandez and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David J. Hernandez's patients have a median age of 71
Across all payers, Dmand AI patient panel data puts Dr. Hernandez's median patient age at 71, with 58% women.
Dr. Hernandez's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women58%
- Men42%
Source: Dmand AI Patient Panel Data
Dr. David J. Hernandez wrote 86 Medicare Part D claims in 2024
In 2024, Dr. Hernandez wrote 86 Medicare Part D claims for 32 patients. 78% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $75 in total drug cost. In 2023, CMS named 1,107 claims across 35 drugs.
Dr. Hernandez's Part D claims by kind of drug, 2024
- Generic67 claims78%
- Brand-name and other19 claims22%
Dr. Hernandez'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: 1,1072024: 1199%
Drugs named by CMS: 1 in 2024, 35 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
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. David J. Hernandez received $96 in industry payments from 2017 to 2021
CMS Open Payments shows 5 general payments to Dr. Hernandez from 4 drug and device companies from 2017 to 2021. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $33.
General payments to Dr. Hernandez by program year, 2017 to 2021
Companies that paid Dr. Hernandez the most, 2017 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David J. Hernandez graduated from University of Texas Medical School at San Antonio
Dr. Hernandez graduated from University of Texas Medical School at San Antonio in 1974.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David J. Hernandez'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 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)Medicare Part D Prescribers - by Provider (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 Dr. David J. Hernandez
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 J. Hernandez's NPI number?
Dr. David J. Hernandez's NPI number is 1396756912. It was assigned on August 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David J. Hernandez?
Dr. David J. Hernandez is an internist in West Hills, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. David J. Hernandez practice?
Dr. Hernandez practices at 7300 Medical Center Dr, West Hills, CA 91307. Dr. Hernandez's primary practice is UCLA West Valley Medical Center in West Hills, California, part of University of California Health. Dmand AI also links Dr. Hernandez to 1 group practice or clinic.
What is Dr. David J. Hernandez's office phone number?
The practice phone on file for Dr. Hernandez is (818) 676-4000.
What is Dr. David J. Hernandez's medical license number?
Dr. Hernandez holds California license G48343.
Which hospitals is Dr. David J. Hernandez affiliated with?
Dr. Hernandez practices at UCLA West Valley Medical Center in West Hills, California.
What medical group is Dr. David J. Hernandez part of?
Dr. Hernandez is linked to David J Hernandez MD Medical Clinic.
Does Dr. David J. Hernandez accept Medicare?
Yes. CMS data shows Dr. Hernandez billed Medicare for 179 services in 2023.
What services does Dr. David J. Hernandez bill to Medicare?
In 2023, Dr. Hernandez's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and care management and other visits (99441).
Where did Dr. David J. Hernandez go to medical school?
Dr. Hernandez graduated from University of Texas Medical School at San Antonio in 1974.
Show 3 more questionsShow fewer questions
What drugs does Dr. David J. Hernandez prescribe most?
In 2024 Medicare Part D data, Dr. Hernandez's most prescribed drugs by claims were Losartan Potassium.
Has Dr. David J. Hernandez received payments from drug or device companies?
CMS Open Payments shows $96 in general payments to Dr. Hernandez from 4 companies from 2017 to 2021. The largest total came from Abbott Laboratories.
How long has Dr. David J. Hernandez been practicing?
Dr. Hernandez graduated from medical school in 1974, 52 years ago.
Selling to internal medicine practices?
See internists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card