Dr. Kenneth K. Chen, MD

  • Richmond, CA
  • Nephrologist
NPI1205911971PAC ID6204018047
Medicare services, 2024
26
Medicare patients, 2024
31
Part D claims, 2024
743
Publications
8
Hospital affiliations
1
Practice address
901 Nevin Ave, Richmond, CA 94801
Practice phone
Call (510) 307-3173
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Richmond Medical Center

Richmond, California

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Dr. Kenneth K. Chen is a nephrologist in Richmond, California

Dr. Chen practices at Richmond Medical Center in Richmond, California.

Dr. Chen's NPI, 1205911971, was assigned on October 25, 2006. Dr. Chen graduated from Albert Einstein College of Medicine in 1996. Dr. Chen holds California license A68140.

NPI and contact details
Medicare PAC ID
6204018047
NPI enumeration date
October 25, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(510) 307-3173
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
56
Medical school graduation
1996

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

Dr. Kenneth K. Chen practices at Richmond Medical Center in Richmond, California

Dr. Chen's primary practice is Richmond Medical Center, at 901 Nevin Ave, Richmond, CA 94801 in Contra Costa County. The practice phone is (510) 307-3173.

  • Richmond Medical Center
    901 Nevin Ave, Richmond, CA 94801 · Contra Costa CountyPhone(510) 307-3173

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

Dr. Kenneth K. Chen is affiliated with 4 sites of care and 1 medical group

Dr. Chen's primary practice is Richmond Medical Center in Richmond, California. Dr. Chen is also affiliated with Oakland Medical Center. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Chen to 1 more dialysis center and 1 group practice or clinic, each named with a free account.

See all 5 affiliations for Dr. Chen

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

Dmand AI tracks the EHR system at Dr. Kenneth K. Chen's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Richmond Medical CenterAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Kenneth K. Chen is one of 1,401 nephrologists in California

Nephrology is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Chen is board certified in nephrology by the American Board of Internal Medicine. Dr. Chen is licensed in California.

Specialties and state licenses

  • Nephrology, CaliforniaPrimaryLicense A68140 · 1999 to 2027 · taxonomy 207RN0300X

Clinical focus

Dmand AI lists chronic diabetes and chronic kidney disease among the conditions Dr. Chen treats.

Nephrologists near Dr. Chen

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

1,401nephrologists in California
8nephrologists in Richmond

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

Dr. Kenneth K. Chen billed Medicare for 26 services in 2024

CMS data shows 26 Medicare services from Dr. Chen across 1 procedure code in 2024, for 31 Medicare patients. Medicare paid $1,813 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202426
Medicare patients31
Paid by Medicare$1,813
Procedure codes1

Dr. Chen's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1092024: 2676%

Dr. Chen compared with the California median for nephrologists, 2024

  • Dr. Chen
  • California median
Medicare services
26vs 1,08498% below
Medicare patients
31vs 30790% below
Part D claims
493vs 95548% below

Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.

Dr. Chen'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.

See all procedures by Dr. Chen

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

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

Dr. Kenneth K. Chen treated 31 Medicare patients in 2024, average age 66

CMS counts 31 Medicare patients who saw Dr. Chen in 2024. The largest group is 65 to 74, with 17 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 58% are also on Medicaid. Their average risk score is 5.93, 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. Chen's median patient age at 67, with 45% women.

Medicare patients, 202431
Average age66
Average risk score5.93
Also on Medicaid58%

Dr. Chen's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Chronic conditions among Dr. Chen's Medicare patients, 2024

  1. Chronic kidney disease75%
  2. High blood pressure75%
  3. High cholesterol74%
  4. Ischemic heart disease61%
  5. Diabetes58%
  6. Heart failure58%
  7. Arthritis45%
  8. Atrial fibrillation45%

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

Dr. Chen'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

  • Women45%
  • Men54%

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

Dr. Kenneth K. Chen wrote 743 Medicare Part D claims in 2024

In 2024, Dr. Chen wrote 743 Medicare Part D claims for 169 patients. 91% of them were for generic drugs. CMS names the drug for 493 of them, across 14 drugs with 11 or more claims each, at $36,175 in total drug cost. In 2023, CMS named 533 claims across 16 drugs.

Part D claims, 2024743
Drugs named by CMS14
Total drug cost$36,175
Part D patients169

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

  • Generic674 claims91%
  • Brand-name and other69 claims9%

Dr. Chen'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. Chen's Part D claims, 2024

  • Antibiotics3%19 of 743 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: 5332024: 4938%

Drugs named by CMS: 14 in 2024, 16 in 2023.

See all prescribing by Dr. Chen

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. Kenneth K. Chen offers telehealth to Medicare patients

Dr. Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chen as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Kenneth K. Chen has 8 publications on record

Dmand AI links 8 papers to Dr. Chen, published from 2010 to 2023. 2014 was the busiest year, with 2. The most frequent topics are Pregnancy Complications, Pregnancy Outcome and Blood Glucose. Dr. Chen has published most often in Diabetes Care. Dr. Chen's most frequent co-authors are Hasmik Arzumanyan, MD, Rakesh Bhattacharjee, MD and Kenneth Pengyu Chen, MD.

Papers8
Years published2010 to 2023

Dr. Chen's papers by year, 2010 to 2023

Topics Dr. Chen writes about most

  • Pregnancy Complications
  • Pregnancy Outcome
  • Blood Glucose
  • Diabetes Mellitus, Type 2
  • Fetal Macrosomia

Dr. Chen's most frequent co-authors

Recent publications by Dr. Chen

See all 8 publications and co-authors

See who Dr. Chen researches with

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

How network discovery works

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

Dr. Kenneth K. Chen received $3,037 in industry payments from 2018 to 2022

CMS Open Payments shows 4 general payments to Dr. Chen from 4 drug and device companies from 2018 to 2022. Consulting fees make up the largest share, 94% of the total. Fujirebio Diagnostics, Incorporated paid the most, $2,868.

General payments to Dr. Chen by program year, 2018 to 2022

General payments to Dr. Chen by kind, 2018 to 2022

$3Kin total
  • Consulting fees$2,86894%
  • Food and beverage$1696%

Companies that paid Dr. Chen the most, 2018 to 2022

Share is of all general payments to this clinician.

See all payments to Dr. Chen

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

Dr. Kenneth K. Chen has 1 award and honors on record

Dmand AI lists 1 award for Dr. Chen, most recently CMS Stage 1 2012 in 2011.

Awards and honors for Dr. Chen

  1. 2011
    • CMS Stage 1 2012

Source: Dmand AI Professional Profile Data

Dr. Kenneth K. Chen graduated from Albert Einstein College of Medicine

Dr. Chen graduated from Albert Einstein College of Medicine in 1996.

  1. Medical schoolAlbert Einstein College of Medicine
  2. Board certified in nephrologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Kenneth K. Chen accepts plans from 2 insurance carriers

Dr. Chen 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. Chen accepts, by number of carriers

  1. EPO1
  2. HMO1
  3. Medicare1
  4. POS1

Source: Dmand AI Insurance Network Data

Sources for Dr. Kenneth K. Chen'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 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)
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. Kenneth K. Chen

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. Kenneth K. Chen's NPI number?

Dr. Kenneth K. Chen's NPI number is 1205911971. It was assigned on October 25, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Kenneth K. Chen?

Dr. Kenneth K. Chen is a nephrologist in Richmond, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).

Where does Dr. Kenneth K. Chen practice?

Dr. Chen practices at 901 Nevin Ave, Richmond, CA 94801. Dr. Chen's primary practice is Richmond Medical Center in Richmond, California. Dmand AI also links Dr. Chen to 1 dialysis center and 1 group practice or clinic.

What is Dr. Kenneth K. Chen's office phone number?

The practice phone on file for Dr. Chen is (510) 307-3173.

What is Dr. Kenneth K. Chen's medical license number?

Dr. Chen holds California license A68140.

Which hospitals is Dr. Kenneth K. Chen affiliated with?

Dr. Chen is affiliated with Oakland Medical Center.

What medical group is Dr. Kenneth K. Chen part of?

Dr. Chen is linked to The Permanente Medical Group, Inc.

Does Dr. Kenneth K. Chen accept Medicare?

Yes. CMS data shows Dr. Chen billed Medicare for 26 services in 2024, and Dr. Chen accepts Medicare assignment.

Does Dr. Kenneth K. Chen offer telehealth?

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

How many Medicare patients does Dr. Kenneth K. Chen see?

CMS counts 31 Medicare patients who saw Dr. Chen in 2024, with an average age of 66.

Show 9 more questionsShow fewer questions

Is Dr. Kenneth K. Chen board certified?

Yes. Dr. Chen is board certified in nephrology by the American Board of Internal Medicine.

What services does Dr. Kenneth K. Chen bill to Medicare?

In 2024, Dr. Chen's most billed Medicare services were hospital inpatient care (99232).

Where did Dr. Kenneth K. Chen go to medical school?

Dr. Chen graduated from Albert Einstein College of Medicine in 1996.

What drugs does Dr. Kenneth K. Chen prescribe most?

In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Amlodipine Besylate, Furosemide and Sevelamer Carbonate.

Has Dr. Kenneth K. Chen received payments from drug or device companies?

CMS Open Payments shows $3,037 in general payments to Dr. Chen from 4 companies from 2018 to 2022. The largest total came from Fujirebio Diagnostics, Incorporated.

How long has Dr. Kenneth K. Chen been practicing?

Dr. Chen graduated from medical school in 1996, 30 years ago.

Does Dr. Kenneth K. Chen do research?

Dmand AI links 8 publications to Dr. Chen, published from 2010 to 2023.

Who does Dr. Kenneth K. Chen publish with?

Dr. Chen's most frequent co-authors are Hasmik Arzumanyan, MD (1 shared paper), Rakesh Bhattacharjee, MD (1 shared paper) and Kenneth Pengyu Chen, MD (1 shared paper).

What insurance does Dr. Kenneth K. Chen accept?

Dr. Chen 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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