Active Transport, Cell NucleusAnemia, Sickle CellAntineoplastic Agents
Cage Johnson
NPI1609913417
- Part D claims, 2024
- 28
- Publications
- 62
- Clinical trials
- 1
- Industry payments
- $6,760
- Affiliated sites
- 1
- Practice address
- 2051 Marengo St, Los Angeles, CA 90033
- Practice phone
- Call (323) 409-2800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Los Angeles General Medical Center
Los Angeles, California
Find Cage Johnson's professional email, personal email and mobile number
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Cage Johnson is an internist in Los Angeles, California
Cage Johnson practices at Los Angeles General Medical Center in Los Angeles, California.
Cage Johnson's NPI, 1609913417, was assigned on January 31, 2007. Cage Johnson graduated from Creighton University School of Medicine - Omaha in 1965. Cage Johnson holds California license G14104.
NPI and contact details
- NPI
- 1609913417NPI Registry (opens in a new tab)
- NPI enumeration date
- January 31, 2007
- NPI status
- Active
- Practice phone
- (323) 409-2800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1965
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Cage Johnson practices at Los Angeles General Medical Center in Los Angeles, California
Cage Johnson's primary practice is Los Angeles General Medical Center, at 2051 Marengo St, Los Angeles, CA 90033 in Los Angeles County. The practice phone is (323) 409-2800.
- Los Angeles General Medical Center2051 Marengo St, Los Angeles, CA 90033 · Los Angeles CountyPhone(323) 409-2800
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Cage Johnson is affiliated with 2 sites of care and 1 medical group
Cage Johnson's primary practice is Los Angeles General Medical Center in Los Angeles, California. Dmand AI also links Cage Johnson to 1 group practice or clinic and 1 medical group, each named with a free account.
Los Angeles General Medical CenterPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Cage Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Cage Johnson 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 |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Cage Johnson is one of 16,751 internists in California
Internal medicine is Cage Johnson's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Cage Johnson is board certified in hematology by the American Board of Internal Medicine. Cage Johnson is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Cage Johnson
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
Cage Johnson's patients have a median age of 58
Across all payers, Dmand AI patient panel data puts Cage Johnson's median patient age at 58, with 53% women.
Cage 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 58
Patient panel by sex, all payers
- Women53%
- Men47%
Source: Dmand AI Patient Panel Data
Cage Johnson wrote 28 Medicare Part D claims in 2024
In 2024, Cage Johnson wrote 28 Medicare Part D claims. 100% of them were for generic drugs. They cover 2 drugs, with $10,999 in total drug cost. In 2022, CMS named 22 claims across 2 drugs.
Part D claims, 202428
Drugs named by CMS2
Total drug cost$10,999
Cage Johnson's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 222023: 2932%
Drugs named by CMS: 2 in 2023, 2 in 2022.
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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Cage Johnson has 62 publications on record
Dmand AI links 62 papers to Cage Johnson, published from 2003 to 2014. 2014 was the busiest year, with 2. The most frequent topics are Anemia, Sickle Cell, Black People and Anemia, Pernicious. Cage Johnson has published most often in Blood. Cage Johnson's most frequent co-authors are Tamas Alexy, MD, PhD, Zora R. Rogers, MD and Myron John Tong, MD.
Papers62
Years published2003 to 2014
Cage Johnson's papers by year, 2003 to 2014
Topics Cage Johnson writes about most
- Anemia, Sickle Cell
- Black People
- Anemia, Pernicious
- Erythrocytes
- Black or African American
- Hemoglobins
- Hemoglobins, Abnormal
- Oxygen
Cage Johnson's most frequent co-authors
- Tamas Alexy, MD, PhD2 shared papers
- Zora R. Rogers, MD2 shared papers
- Myron John Tong, MD2 shared papers
Recent publications by Cage Johnson
Anemia, Sickle CellCells, CulturedChemokines
Anemia, Sickle CellArthritis, RheumatoidEmotions
See who Cage Johnson researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Cage Johnson works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Cage Johnson has worked on 1 clinical trial
Dmand AI links Cage Johnson to 1 clinical trial. Conditions studied include Priapism and Penile Diseases.
Conditions in Cage Johnson's trials
- Priapism
- Penile Diseases
Investigators on the most trials with Cage Johnson
- Laura Martina Decastro, MD1 shared trial
- Matthew M. Heeney, MD1 shared trial
- William C. Mentzer, MD1 shared trial
Recent clinical trials with Cage Johnson
PriapismPenile Diseases
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Cage Johnson received $6,760 in industry payments from 2016 to 2021
CMS Open Payments shows 37 general payments to Cage Johnson from 15 drug and device companies from 2016 to 2021. Consulting fees make up the largest share, 86% of the total. Global Blood Therapeutics, Inc. paid the most, $4,256. It also lists 7 research payments totaling $158,325 from 2020 to 2025.
General payments to Cage Johnson by program year, 2016 to 2021
General payments to Cage Johnson by kind, 2016 to 2021
$6.8Kin total
- Consulting fees$5,84386%
- Food and beverage$66510%
- Speaker and faculty fees$2253%
- Education$260%
Companies that paid Cage Johnson the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Cage Johnson has 4 awards and honors on record
Dmand AI lists 4 awards for Cage Johnson, most recently Alumni Achievement Award in 2011.
Awards and honors for Cage Johnson
- 2011
- Alumni Achievement Award
- 1964
- Alpha Omega Alpha
- Undated
- Super Doc
- Whos Who
Source: Dmand AI Professional Profile Data
Cage Johnson graduated from Creighton University School of Medicine - Omaha
Cage Johnson graduated from Creighton University School of Medicine - Omaha in 1965. Cage Johnson is a member of AOA, ASH and EE Just Society.
- Medical school
- Board certified in hematology
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Cage Johnson accepts plans from 1 insurance carrier
Cage Johnson is in network with 1 carrier, including LA Care. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- LA Care
Plan types Cage Johnson accepts, by number of carriers
- HMO1
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Cage 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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 Cage 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 Cage Johnson's NPI number?
Cage Johnson's NPI number is 1609913417. It was assigned on January 31, 2007, and it is active in the NPI Registry.
What does Cage Johnson specialize in?
Cage Johnson is an internist in Los Angeles, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Cage Johnson practice?
Cage Johnson practices at 2051 Marengo St, Los Angeles, CA 90033. Cage Johnson's primary practice is Los Angeles General Medical Center in Los Angeles, California. Dmand AI also links Cage Johnson to 1 group practice or clinic and 1 medical group.
What is Cage Johnson's office phone number?
The practice phone on file for Cage Johnson is (323) 409-2800.
What is Cage Johnson's medical license number?
Cage Johnson holds California license G14104.
Is Cage Johnson board certified?
Yes. Cage Johnson is board certified in hematology by the American Board of Internal Medicine.
Where did Cage Johnson go to medical school?
Cage Johnson graduated from Creighton University School of Medicine - Omaha in 1965.
What drugs does Cage Johnson prescribe most?
In 2023 Medicare Part D data, Cage Johnson's most prescribed drugs by claims were Meperidine HCl and Temazepam.
Has Cage Johnson received payments from drug or device companies?
CMS Open Payments shows $6,760 in general payments to Cage Johnson from 15 companies from 2016 to 2021. The largest total came from Global Blood Therapeutics, Inc.
How long has Cage Johnson been practicing?
Cage Johnson graduated from medical school in 1965, 61 years ago.
Show 3 more questionsShow fewer questions
Does Cage Johnson do research?
Dmand AI links 62 publications to Cage Johnson, published from 2003 to 2014. Cage Johnson has worked on 1 clinical trial.
Who does Cage Johnson publish with?
Cage Johnson's most frequent co-authors are Tamas Alexy, MD, PhD (2 shared papers), Zora R. Rogers, MD (2 shared papers) and Myron John Tong, MD (2 shared papers).
What insurance does Cage Johnson accept?
Cage Johnson is in network with 1 carrier, including LA Care. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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