Dr. Joseph K. Hyon, DO
- Medicare services, 2024
- 3,255
- Medicare patients, 2024
- 490
- Part D claims, 2024
- 8,851
- Hospital affiliations
- 4
- Industry payments
- $3,798
- Practice address
- 1720 Cesar E Chavez Avenue, Los Angeles, CA 90033
- Practice phone
- Call (323) 268-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hyon's professional email, personal email and mobile number
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Dr. Joseph K. Hyon is an internist in Los Angeles, California
Dr. Hyon practices at Adventist Health White Memorial in Los Angeles, California, part of Adventist Health.
Dr. Hyon's NPI, 1245281773, was assigned on May 12, 2006. Dr. Hyon graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 1991. Dr. Hyon holds New Jersey license 25MB05812200.
- NPI
- 1245281773NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9537172689
- NPI enumeration date
- May 12, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (323) 268-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joseph K. Hyon practices at Adventist Health White Memorial in Los Angeles, California
Dr. Hyon's primary practice is Adventist Health White Memorial, at 1720 Cesar E Chavez Avenue, Los Angeles, CA 90033 in Los Angeles County. The practice phone is (323) 268-5000.
- Adventist Health White Memorial1720 Cesar E Chavez Avenue, Los Angeles, CA 90033 · Los Angeles CountyPhone(323) 268-5000
Source: Dmand AI Affiliation Data
Dr. Joseph K. Hyon is affiliated with 7 sites of care
Dr. Hyon's primary practice is Adventist Health White Memorial in Los Angeles, California, part of Adventist Health. Dr. Hyon is also affiliated with The Valley Hospital. Dmand AI also links Dr. Hyon to 2 more hospitals, 1 physician office, 1 home health agency and 1 ambulatory surgery center, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Joseph K. Hyon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hyon practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Adventist Health White Memorial | Available with a free account |
| +6 more affiliated sites | 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 Adventist Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Joseph K. Hyon is one of 16,751 internists in California
Internal medicine is Dr. Hyon's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Hyon is licensed in New Jersey.
Specialties and state licenses
- Internal medicine, New JerseyPrimary
Internists near Dr. Hyon
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. Joseph K. Hyon billed Medicare for 3,255 services in 2024
CMS data shows 3,255 Medicare services from Dr. Hyon across 18 procedure codes in 2024, for 490 Medicare patients. Medicare paid $232,332 for them.
Dr. Hyon's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2,0852024: 1,9079%
- Other services
- 2023: 6262024: 6142%
- Tests and treatments
- 2023: 4362024: 3979%
- Drugs given in the office
- 2023: 2802024: 31011%
- Surgery
- 2023: 212024: 2729%
Where Dr. Hyon's Medicare services took place, 2024
- In an office3,13896%
- In a facility1174%
Dr. Hyon compared with the California median for internists, 2024
- Dr. Hyon
- California median
- Medicare services
- 3,255vs 3619.0 times
- Medicare patients
- 490vs 1513.2 times
- Part D claims
- 8,197vs 42119.5 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Hyon's most billed Medicare procedure codes, 2024
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. Hyon and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Joseph K. Hyon treated 490 Medicare patients in 2024, average age 75
CMS counts 490 Medicare patients who saw Dr. Hyon in 2024. The largest group is 65 to 74, with 230 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 3% are also on Medicaid. Their average risk score is 1.02, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Hyon's median patient age at 61, with 45% women.
Dr. Hyon's Medicare patients by age, 2024
Dr. Hyon's Medicare patients by sex, 2024
- Women25452%
- Men23648%
Chronic conditions among Dr. Hyon's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis44%
- Diabetes39%
- Ischemic heart disease33%
- Anxiety24%
- Atrial fibrillation20%
- Cancer20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hyon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women45%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joseph K. Hyon wrote 8,851 Medicare Part D claims in 2024
In 2024, Dr. Hyon wrote 8,851 Medicare Part D claims for 613 patients. 86% of them were for generic drugs. CMS names the drug for 8,197 of them, across 135 drugs with 11 or more claims each, at $1,090,594 in total drug cost. In 2023, CMS named 8,269 claims across 138 drugs.
Dr. Hyon's Part D claims by kind of drug, 2024
- Generic7,585 claims86%
- Brand-name1,197 claims14%
- Other69 claims1%
Dr. Hyon'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.
Drug classes CMS tracks in Dr. Hyon's Part D claims, 2024
- Opioids1%67 of 8,851 claims
- Antibiotics3%301 of 8,851 claims
- Antipsychotics, patients 65 and over1%45 of 8,851 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 8,2692024: 8,1971%
Drugs named by CMS: 135 in 2024, 138 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
Dr. Joseph K. Hyon offers telehealth to Medicare patients
Dr. Hyon accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hyon as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Joseph K. Hyon received $3,798 in industry payments from 2016 to 2025
CMS Open Payments shows 285 general payments to Dr. Hyon from 37 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. AstraZeneca Pharmaceuticals LP paid the most, $542.
General payments to Dr. Hyon by program year, 2016 to 2025
General payments to Dr. Hyon by kind, 2016 to 2025
- Food and beverage$3,76099%
- Education$381%
Companies that paid Dr. Hyon the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Joseph K. Hyon graduated from Kansas City University of Med & Biosciences, College of Osteo Med
Dr. Hyon graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Joseph K. Hyon'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 |
| 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. Joseph K. Hyon
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. Joseph K. Hyon's NPI number?
Dr. Joseph K. Hyon's NPI number is 1245281773. It was assigned on May 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Joseph K. Hyon?
Dr. Joseph K. Hyon is an internist in Los Angeles, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Joseph K. Hyon practice?
Dr. Hyon practices at 1720 Cesar E Chavez Avenue, Los Angeles, CA 90033. Dr. Hyon's primary practice is Adventist Health White Memorial in Los Angeles, California, part of Adventist Health. Dmand AI also links Dr. Hyon to 2 hospitals, 1 physician office, 1 home health agency and 1 ambulatory surgery center.
What is Dr. Joseph K. Hyon's office phone number?
The practice phone on file for Dr. Hyon is (323) 268-5000.
What is Dr. Joseph K. Hyon's medical license number?
Dr. Hyon holds New Jersey license 25MB05812200.
Which hospitals is Dr. Joseph K. Hyon affiliated with?
Dr. Hyon practices at Adventist Health White Memorial in Los Angeles, California. Dr. Hyon is also affiliated with The Valley Hospital. Dmand AI links Dr. Hyon to 2 more hospitals.
Does Dr. Joseph K. Hyon accept Medicare?
Yes. CMS data shows Dr. Hyon billed Medicare for 3,255 services in 2024, and Dr. Hyon accepts Medicare assignment.
Does Dr. Joseph K. Hyon offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Hyon as offering telehealth services.
How many Medicare patients does Dr. Joseph K. Hyon see?
CMS counts 490 Medicare patients who saw Dr. Hyon in 2024, with an average age of 75.
What services does Dr. Joseph K. Hyon bill to Medicare?
In 2024, Dr. Hyon's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and heart test or procedure (93000).
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Where did Dr. Joseph K. Hyon go to medical school?
Dr. Hyon graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 1991.
What drugs does Dr. Joseph K. Hyon prescribe most?
In 2024 Medicare Part D data, Dr. Hyon's most prescribed drugs by claims were Rosuvastatin Calcium, Atorvastatin Calcium and Levothyroxine Sodium.
Has Dr. Joseph K. Hyon received payments from drug or device companies?
CMS Open Payments shows $3,798 in general payments to Dr. Hyon from 37 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Joseph K. Hyon been practicing?
Dr. Hyon graduated from medical school in 1991, 35 years ago.
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