Dr. Eon Joseph Rios, MD

  • Soquel, CA
  • Dermatologist
NPI1942526389PAC ID5991029605
Medicare services, 2024
1,658
Medicare patients, 2024
587
Part D claims, 2024
2,386
Publications
17
Hospital affiliations
2
Practice address
2950 Research Park Dr, Soquel, CA 95073
Practice phone
Call (650) 321-4121
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Palo Alto Medial Foundation

Soquel, California

See all 7 affiliations

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Dr. Eon Joseph Rios is a dermatologist in Soquel, California

Dr. Rios practices at Palo Alto Medial Foundation in Soquel, California.

Dr. Rios' NPI, 1942526389, was assigned on April 9, 2010. Dr. Rios graduated from Stanford University School Of Medicine in 2010. Dr. Rios holds California license A117533.

NPI and contact details
Medicare PAC ID
5991029605
NPI enumeration date
April 9, 2010
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(650) 321-4121
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
42
Medical school graduation
2010

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Eon Joseph Rios practices at Palo Alto Medial Foundation in Soquel, California

Dr. Rios' primary practice is Palo Alto Medial Foundation, at 2950 Research Park Dr, Soquel, CA 95073 in Santa Cruz County. The practice phone is (650) 321-4121.

  • Palo Alto Medial Foundation
    2950 Research Park Dr, Soquel, CA 95073 · Santa Cruz CountyPhone(650) 321-4121

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Eon Joseph Rios is affiliated with 3 sites of care and 4 medical groups

Dr. Rios' primary practice is Palo Alto Medial Foundation in Soquel, California. Dr. Rios is also affiliated with Stanford Hospital at 300 Pasteur Drive. The medical group on file is Palo Alto Foundation Medical Group. Dmand AI also links Dr. Rios to 1 more hospital and 3 medical groups, each named with a free account.

See all 7 affiliations for Dr. Rios

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Eon Joseph Rios' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Rios practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Palo Alto Medial FoundationAvailable with a free account
+2 more sites and 3 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Eon Joseph Rios is one of 1,910 dermatologists in California

Dermatology is Dr. Rios' primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Rios is board certified in dermatology by the American Board of Dermatology. Dmand AI has Dr. Rios' licenses on file in 8 states: California, Delaware, New Jersey, New York, Pennsylvania, Virginia, Maryland and Washington.

Specialties and state licenses

  • Dermatology, CaliforniaPrimaryLicense A117533 · 2011 to 2026 · taxonomy 207N00000X
  • Delaware license2021 to 2027
  • New Jersey license2021 to 2027
  • New York license2020 to 2026
  • Pennsylvania license2021 to 2026
  • Virginia license2024 to 2026
  • Maryland license2021 to 2025
  • Washington license2024 to 2025

Clinical focus

Dmand AI lists acne, benign or precancerous skin growths, cold sores or genital herpes, contact dermatitis, hives, itchy rashes, joint cyst and psoriasis among the conditions Dr. Rios treats.

Dermatologists near Dr. Rios

Counts of dermatologists with a Dmand AI profile, by place and practice. Each opens the list.

1,910dermatologists in California
5dermatologists in Soquel

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Eon Joseph Rios billed Medicare for 1,658 services in 2024

CMS data shows 1,658 Medicare services from Dr. Rios across 10 procedure codes in 2024, for 587 Medicare patients. Medicare paid $74,492 for them.

Medicare services, 20241,658
Medicare patients587
Paid by Medicare$74,492
Procedure codes10

Dr. Rios' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Surgery
2023: 5332024: 1,01490%
Office and hospital visits
2023: 5472024: 64418%

Where Dr. Rios' Medicare services took place, 2024

  • In an office1,19372%
  • In a facility46528%

Dr. Rios compared with the California median for dermatologists, 2024

  • Dr. Rios
  • California median
Medicare services
1,658vs 1,7505% below
Medicare patients
587vs 37756% above
Part D claims
2,205vs 3676.0 times

Medians across 1,831 dermatologists in California with Dmand AI profiles that report each measure.

Dr. Rios' 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.

See all procedures by Dr. Rios

Need commercial claims for Dr. Rios?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Rios and other dermatologists in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Eon Joseph Rios treated 587 Medicare patients in 2024, average age 72

CMS counts 587 Medicare patients who saw Dr. Rios in 2024. The largest group is 65 to 74, with 236 patients. 62% of them have high blood pressure, and 61% have high cholesterol. 45% are also on Medicaid. Their average risk score is 1.29, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Rios' median patient age at 42, with 60% women.

Medicare patients, 2024587
Average age72
Average risk score1.29
Also on Medicaid45%

Dr. Rios' Medicare patients by age, 2024

Dr. Rios' Medicare patients by sex, 2024

  • Women27347%
  • Men31453%

Chronic conditions among Dr. Rios' Medicare patients, 2024

  1. High blood pressure62%
  2. High cholesterol61%
  3. Arthritis31%
  4. Diabetes27%
  5. Ischemic heart disease22%
  6. Mood disorders20%
  7. Anxiety19%
  8. Chronic kidney disease19%

Share of Medicare patients with each condition. A patient can have several.

Dr. Rios' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 42

Patient panel by sex, all payers

  • Women60%
  • Men39%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Eon Joseph Rios wrote 2,386 Medicare Part D claims in 2024

In 2024, Dr. Rios wrote 2,386 Medicare Part D claims for 606 patients. 79% of them were for generic drugs. CMS names the drug for 2,205 of them, across 34 drugs with 11 or more claims each, at $2,697,909 in total drug cost. In 2023, CMS named 1,865 claims across 37 drugs.

Part D claims, 20242,386
Drugs named by CMS34
Total drug cost$2.7M
Part D patients606

Dr. Rios' Part D claims by kind of drug, 2024

  • Generic1,887 claims79%
  • Brand-name499 claims21%

Dr. Rios' 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. Rios' Part D claims, 2024

  • Antibiotics1%18 of 2,386 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: 1,8652024: 2,20518%

Drugs named by CMS: 34 in 2024, 37 in 2023.

See all prescribing by Dr. Rios

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. Eon Joseph Rios ranks in the 83rd percentile for removal of skin lesions in Medicare

Dr. Rios accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Rios as offering telehealth. CMS counts 344 procedures of removal of skin lesions by Dr. Rios, more than 83% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Where Dr. Rios ranks in Medicare procedure volume

Removal of skin lesions
83rd percentile344 procedures
Skin biopsy
75th percentile91 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Eon Joseph Rios has 17 publications on record

Dmand AI links 17 papers to Dr. Rios, published from 2005 to 2023. 2008 was the busiest year, with 2. The most frequent topics are Mast Cells, Mice, Inbred C57BL and Mice, Knockout. Dr. Rios' most frequent co-authors are Stephen Joseph Galli, MD, Sumaira Zareen Aasi, MD and Paul A. Khavari, MD.

Papers17
Years published2005 to 2023

Dr. Rios' papers by year, 2008 to 2023

Topics Dr. Rios writes about most

  • Mast Cells
  • Mice, Inbred C57BL
  • Mice, Knockout
  • Antigens
  • Cells, Cultured
  • Disease Models, Animal
  • Guanine Nucleotide Exchange Factors
  • Hydrogen-Ion Concentration

Dr. Rios' most frequent co-authors

Recent publications by Dr. Rios

See all 17 publications and co-authors

See who Dr. Rios researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Rios works with, so you can find a warm path to the right dermatologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Eon Joseph Rios received $856 in industry payments from 2018 to 2025

CMS Open Payments shows 12 general payments to Dr. Rios from 7 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 99% of the total. Abbvie Inc. paid the most, $313.

General payments to Dr. Rios by program year, 2018 to 2025

General payments to Dr. Rios by kind, 2018 to 2025

$856in total
  • Food and beverage$84799%
  • Education$91%

Companies that paid Dr. Rios the most, 2018 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Rios

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Eon Joseph Rios has 1 award and honors on record

Dmand AI lists 1 award for Dr. Rios, most recently Dermatology Foundation Career Development Award in 2014.

Awards and honors for Dr. Rios

  1. 2014
    • Dermatology Foundation Career Development Award

Source: Dmand AI Professional Profile Data

Dr. Eon Joseph Rios graduated from Stanford University School Of Medicine

Dr. Rios graduated from Stanford University School Of Medicine in 2010.

  1. Medical schoolStanford University School Of Medicine
  2. Board certified in dermatologyAmerican Board of Dermatology

Source: Dmand AI Professional Profile Data

Dr. Eon Joseph Rios accepts plans from 16 insurance carriers

Dr. Rios is in network with 16 carriers, including Elevance, United Healthcare and Aetna. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Elevance
  • United Healthcare
  • Aetna
  • Blue Cross Blue Shield of Michigan
  • HCSC
  • Kaiser Permanente
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • +8 more carriersWith a free account

Plan types Dr. Rios accepts, by number of carriers

  1. Medicare9
  2. PPO9
  3. HMO7
  4. POS6
  5. EPO5

Source: Dmand AI Insurance Network Data

Sources for Dr. Eon Joseph Rios's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Eon Joseph Rios

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. Eon Joseph Rios' NPI number?

Dr. Eon Joseph Rios' NPI number is 1942526389. It was assigned on April 9, 2010, and it is active in the NPI Registry.

What kind of doctor is Dr. Eon Joseph Rios?

Dr. Eon Joseph Rios is a dermatologist in Soquel, California. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).

Where does Dr. Eon Joseph Rios practice?

Dr. Rios practices at 2950 Research Park Dr, Soquel, CA 95073. Dr. Rios' primary practice is Palo Alto Medial Foundation in Soquel, California. Dmand AI also links Dr. Rios to 1 hospital and 3 medical groups.

What is Dr. Eon Joseph Rios' office phone number?

The practice phone on file for Dr. Rios is (650) 321-4121.

What is Dr. Eon Joseph Rios' medical license number?

Dr. Rios holds California license A117533, one of the licenses on file in 8 states.

Which states has Dr. Eon Joseph Rios been licensed in?

Dmand AI has state licenses on file for Dr. Rios in California (2011 to 2026), Delaware (2021 to 2027), New Jersey (2021 to 2027), New York (2020 to 2026), Pennsylvania (2021 to 2026), Virginia (2024 to 2026), Maryland (2021 to 2025) and Washington (2024 to 2025).

Which hospitals is Dr. Eon Joseph Rios affiliated with?

Dr. Rios is affiliated with Stanford Hospital at 300 Pasteur Drive. Dmand AI links Dr. Rios to 1 more hospital.

What medical group is Dr. Eon Joseph Rios part of?

Dr. Rios is linked to Palo Alto Foundation Medical Group. Dmand AI links Dr. Rios to 3 more medical groups.

Does Dr. Eon Joseph Rios accept Medicare?

Yes. CMS data shows Dr. Rios billed Medicare for 1,658 services in 2024, and Dr. Rios accepts Medicare assignment.

Does Dr. Eon Joseph Rios offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Rios as offering telehealth services.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Eon Joseph Rios see?

CMS counts 587 Medicare patients who saw Dr. Rios in 2024, with an average age of 72.

Is Dr. Eon Joseph Rios board certified?

Yes. Dr. Rios is board certified in dermatology by the American Board of Dermatology.

What services does Dr. Eon Joseph Rios bill to Medicare?

In 2024, Dr. Rios' most billed Medicare services were surgery: skin and soft tissue (17003), office visit, established patient (99214) and surgery: skin and soft tissue (17000).

Where did Dr. Eon Joseph Rios go to medical school?

Dr. Rios graduated from Stanford University School Of Medicine in 2010.

What drugs does Dr. Eon Joseph Rios prescribe most?

In 2024 Medicare Part D data, Dr. Rios' most prescribed drugs by claims were Triamcinolone Acetonide, Ketoconazole and Fluocinonide.

Has Dr. Eon Joseph Rios received payments from drug or device companies?

CMS Open Payments shows $856 in general payments to Dr. Rios from 7 companies from 2018 to 2025. The largest total came from Abbvie Inc.

How long has Dr. Eon Joseph Rios been practicing?

Dr. Rios graduated from medical school in 2010, 16 years ago.

Does Dr. Eon Joseph Rios do research?

Dmand AI links 17 publications to Dr. Rios, published from 2005 to 2023.

Who does Dr. Eon Joseph Rios publish with?

Dr. Rios' most frequent co-authors are Stephen Joseph Galli, MD (5 shared papers), Sumaira Zareen Aasi, MD (2 shared papers) and Paul A. Khavari, MD (2 shared papers).

What insurance does Dr. Eon Joseph Rios accept?

Dr. Rios is in network with 16 carriers, including Elevance, United Healthcare and Aetna. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

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