Dr. David Edward Rex, MD, PhD
- Medicare services, 2018
- 133
- Medicare patients, 2024
- 13
- Part D claims, 2024
- 30
- Hospital affiliations
- 1
- Industry payments
- $275
- Practice address
- 4867 Sunset Blvd, Los Angeles, CA 90027
- Practice phone
- Call (323) 783-4011
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Rex'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 Edward Rex is a diagnostic radiologist in Los Angeles, California
Dr. Rex practices at Kaiser Permanente Los Angeles Medical Center in Los Angeles, California, part of Kaiser Permanente.
Dr. Rex's NPI, 1255520151, was assigned on October 17, 2007. Dr. Rex graduated from David Geffen School of Medicine at UCLA in 2006. Dr. Rex's California license number on file is A101776.
- NPI
- 1255520151NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052577475
- NPI enumeration date
- October 17, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (323) 783-4011
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Edward Rex practices at Kaiser Permanente Los Angeles Medical Center in Los Angeles, California
Dr. Rex's primary practice is Kaiser Permanente Los Angeles Medical Center, at 4867 Sunset Blvd, Los Angeles, CA 90027 in Los Angeles County. The practice phone is (323) 783-4011.
- Kaiser Permanente Los Angeles Medical Center4867 Sunset Blvd, Los Angeles, CA 90027 · Los Angeles CountyPhone(323) 783-4011
Source: Dmand AI Affiliation Data
Dr. David Edward Rex is affiliated with 2 sites of care and 1 medical group
Dr. Rex's primary practice is Kaiser Permanente Los Angeles Medical Center in Los Angeles, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Rex 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 Edward Rex's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Rex practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente Los Angeles 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 Edward Rex is one of 4,096 diagnostic radiologists in California
Diagnostic radiology is Dr. Rex's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Rex is board certified in diagnostic radiology by the American Board of Radiology. Dmand AI has Dr. Rex's licenses on file in 2 states: California and Massachusetts.
Specialties and state licenses
- Diagnostic radiology, CaliforniaPrimary
- Massachusetts license
Diagnostic radiologists near Dr. Rex
Counts of diagnostic radiologists 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 Edward Rex billed Medicare for 133 services in 2018
CMS data shows 133 Medicare services from Dr. Rex across 4 procedure codes in 2018, for 13 Medicare patients. Medicare paid $22,785 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Rex's Medicare services by type, 2017 to 2018
- 2017
- 2018
- Surgery
- 2017: 1322018: 8238%
- Tests and treatments
- 2017: 362018: 2822%
- Imaging
- 2017: 612018: 2362%
Dr. Rex compared with the California median for diagnostic radiologists, 2018
- Dr. Rex
- California median
- Medicare services
- 133vs 2,28194% below
- Medicare patients
- 13vs 1,34699% below
- Part D claims
- 27vs 1493% above
Medians across 3,734 diagnostic radiologists in California with Dmand AI profiles that report each measure.
Dr. Rex's most billed Medicare procedure codes, 2018
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Rex and other diagnostic radiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David Edward Rex treated 13 Medicare patients in 2024, average age 70
CMS counts 13 Medicare patients who saw Dr. Rex in 2024. 75% of them have stroke or tia. Their average risk score is 2.77, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Rex's median patient age at 67, with 58% women.
Chronic conditions among Dr. Rex's Medicare patients, 2024
- Stroke or TIA75%
Share of Medicare patients with each condition. A patient can have several.
Dr. Rex's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David Edward Rex wrote 30 Medicare Part D claims in 2024
In 2024, Dr. Rex wrote 30 Medicare Part D claims for 11 patients. 50% of them were for generic drugs. CMS names the drug for 27 of them, across 2 drugs with 11 or more claims each, at $8,274 in total drug cost. In 2023, CMS named 18 claims across 1 drug.
Dr. Rex's Part D claims by kind of drug, 2024
- Generic15 claims50%
- Brand-name15 claims50%
Dr. Rex'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: 182024: 2750%
Drugs named by CMS: 2 in 2024, 1 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
How Dr. David Edward Rex takes part in Medicare
Dr. Rex accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. David Edward Rex received $275 in industry payments from 2016 to 2017
CMS Open Payments shows 5 general payments to Dr. Rex from 2 drug and device companies from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. Medtronic USA, Inc. paid the most, $212.
General payments to Dr. Rex by program year, 2016 to 2017
Companies that paid Dr. Rex the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David Edward Rex graduated from David Geffen School of Medicine at UCLA
Dr. Rex graduated from David Geffen School of Medicine at UCLA in 2006.
- Medical school
- Board certified in diagnostic radiology
- Board certified in neuroradiology
Source: Dmand AI Professional Profile Data
Dr. David Edward Rex accepts plans from 2 insurance carriers
Dr. Rex 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. Rex accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. David Edward Rex'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. David Edward Rex
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 Edward Rex's NPI number?
Dr. David Edward Rex's NPI number is 1255520151. It was assigned on October 17, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. David Edward Rex?
Dr. David Edward Rex is a diagnostic radiologist in Los Angeles, California. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. David Edward Rex practice?
Dr. Rex practices at 4867 Sunset Blvd, Los Angeles, CA 90027. Dr. Rex's primary practice is Kaiser Permanente Los Angeles Medical Center in Los Angeles, California, part of Kaiser Permanente. Dmand AI also links Dr. Rex to 1 group practice or clinic.
What is Dr. David Edward Rex's office phone number?
The practice phone on file for Dr. Rex is (323) 783-4011.
What is Dr. David Edward Rex's medical license number?
Dr. Rex's California license number on file is A101776, one of the licenses on file in 2 states.
Which states has Dr. David Edward Rex been licensed in?
Dmand AI has state licenses on file for Dr. Rex in California (2007 to 2025) and Massachusetts (2015 to 2022).
Which hospitals is Dr. David Edward Rex affiliated with?
Dr. Rex practices at Kaiser Permanente Los Angeles Medical Center in Los Angeles, California.
What medical group is Dr. David Edward Rex part of?
Dr. Rex is linked to Southern California Permanente Medical Group.
Does Dr. David Edward Rex accept Medicare?
Yes. CMS data shows Dr. Rex billed Medicare for 133 services in 2018, and Dr. Rex accepts Medicare assignment.
How many Medicare patients does Dr. David Edward Rex see?
CMS counts 13 Medicare patients who saw Dr. Rex in 2024, with an average age of 70.
Show 7 more questionsShow fewer questions
Is Dr. David Edward Rex board certified?
Yes. Dr. Rex is board certified in diagnostic radiology by the American Board of Radiology.
What services does Dr. David Edward Rex bill to Medicare?
In 2018, Dr. Rex's most billed Medicare services were surgery: heart and blood vessels (36224), surgery: heart and blood vessels (36226) and special service (99152).
Where did Dr. David Edward Rex go to medical school?
Dr. Rex graduated from David Geffen School of Medicine at UCLA in 2006.
What drugs does Dr. David Edward Rex prescribe most?
In 2024 Medicare Part D data, Dr. Rex's most prescribed drugs by claims were Brilinta and Clopidogrel.
Has Dr. David Edward Rex received payments from drug or device companies?
CMS Open Payments shows $275 in general payments to Dr. Rex from 2 companies from 2016 to 2017. The largest total came from Medtronic USA, Inc.
How long has Dr. David Edward Rex been practicing?
Dr. Rex graduated from medical school in 2006, 20 years ago.
What insurance does Dr. David Edward Rex accept?
Dr. Rex 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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