Dr. Joseph I. Chen, MD

  • Harbor City, CA
  • General surgeon
NPI1750546917PAC ID0244536696
Part D claims, 2024
50
Publications
5
Hospital affiliations
1
Industry payments
$7,307
Medical groups
2
Practice address
25825 South Vermont Avenue, Harbor City, CA 90710
Practice phone
Call (310) 325-5111
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Kaiser Permanente South Bay Medical Center

Hospital · Harbor City, California

See all 3 affiliations

Find Dr. Chen'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.

View contacts for free

Dr. Joseph I. Chen is a general surgeon in Harbor City, California

Dr. Chen practices at Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente.

Dr. Chen's NPI, 1750546917, was assigned on July 26, 2008. Dr. Chen graduated from UC Irvine School of Medicine in 2008. Dr. Chen holds California license DO NOT HAVE YET.

NPI and contact details
Medicare PAC ID
0244536696
NPI enumeration date
July 26, 2008
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(310) 325-5111
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
44
Medical school graduation
2008

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

Dr. Joseph I. Chen practices at Kaiser Permanente South Bay Medical Center in Harbor City, California

Dr. Chen's primary practice is Kaiser Permanente South Bay Medical Center, at 25825 South Vermont Avenue, Harbor City, CA 90710 in Los Angeles County. The practice phone is (310) 325-5111.

Source: Dmand AI Affiliation Data

Dr. Joseph I. Chen is affiliated with 1 site of care and 2 medical groups

Dr. Chen's primary practice is Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Chen to 1 more medical group, named with a free account.

See all 3 affiliations for Dr. Chen

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Joseph I. Chen's practice

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

EHR by site
SiteEHR vendor and product
Kaiser Permanente South Bay Medical CenterAvailable with a free account
+1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every hospital where Dr. Chen practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across Kaiser Permanente and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Joseph I. Chen is one of 2,926 general surgeons in California

Surgery is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Chen is board certified in plastic surgery by the American Board of Plastic Surgery. Dr. Chen is licensed in California.

Specialties and state licenses

  • Surgery, CaliforniaPrimaryLicense DO NOT HAVE YET · 2010 to 2026 · taxonomy 208600000X

General surgeons near Dr. Chen

Counts of general surgeons 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 I. Chen's patients have a median age of 48

Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 48, with 86% women.

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 48

Patient panel by sex, all payers

  • Women86%
  • Men14%

Source: Dmand AI Patient Panel Data

Dr. Joseph I. Chen wrote 50 Medicare Part D claims in 2024

In 2024, Dr. Chen wrote 50 Medicare Part D claims for 25 patients. 92% of them were for generic drugs. CMS names the drug for 14 of them, across 1 drug with 11 or more claims each, at $151 in total drug cost. In 2023, CMS named 20 claims across 1 drug.

Part D claims, 202450
Drugs named by CMS1
Total drug cost$151
Part D patients25

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

  • Generic46 claims92%
  • Brand-name and other4 claims8%

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

  • Opioids36%18 of 50 claims
  • Antibiotics32%16 of 50 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: 202024: 1430%

Drugs named by CMS: 1 in 2024, 1 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

How Dr. Joseph I. Chen takes part in Medicare

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

Accepts Medicare assignment
Yes

Mastectomy: 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)

For MedTech and pharma teams

Find general surgeons like Dr. Chen by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

Dr. Joseph I. Chen has 5 publications on record

Dmand AI links 5 papers to Dr. Chen in 2016. Dr. Chen's most frequent co-authors are Camille G. Cash, MD, Warner C. Greene, MD, PhD and James Shun Dah Hu, MD.

Papers5

Dr. Chen's most frequent co-authors

Recent publications by Dr. Chen

See all 5 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 general surgeons.

How network discovery works

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

Dr. Joseph I. Chen received $7,307 in industry payments from 2016 to 2025

CMS Open Payments shows 14 general payments to Dr. Chen from 6 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 61% of the total. Novadaq Technologies Inc. paid the most, $6,812.

General payments to Dr. Chen by program year, 2016 to 2025

General payments to Dr. Chen by kind, 2016 to 2025

$7.3Kin total
  • Travel and lodging$4,49161%
  • Food and beverage$2,81639%

Companies that paid Dr. Chen the most, 2016 to 2025

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. Joseph I. Chen graduated from UC Irvine School of Medicine

Dr. Chen graduated from UC Irvine School of Medicine in 2008.

  1. Medical schoolUC Irvine School of Medicine
  2. Board certified in plastic surgeryAmerican Board of Plastic Surgery

Source: Dmand AI Professional Profile Data

Sources for Dr. Joseph I. 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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
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)
Training, board certification and membershipsDmand AI Professional Profile 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. Joseph I. 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. Joseph I. Chen's NPI number?

Dr. Joseph I. Chen's NPI number is 1750546917. It was assigned on July 26, 2008, and it is active in the NPI Registry.

What kind of doctor is Dr. Joseph I. Chen?

Dr. Joseph I. Chen is a general surgeon in Harbor City, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).

Where does Dr. Joseph I. Chen practice?

Dr. Chen practices at 25825 South Vermont Avenue, Harbor City, CA 90710. Dr. Chen's primary practice is Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente. Dmand AI also links Dr. Chen to 1 medical group.

What is Dr. Joseph I. Chen's office phone number?

The practice phone on file for Dr. Chen is (310) 325-5111.

What is Dr. Joseph I. Chen's medical license number?

Dr. Chen holds California license DO NOT HAVE YET.

Which hospitals is Dr. Joseph I. Chen affiliated with?

Dr. Chen practices at Kaiser Permanente South Bay Medical Center in Harbor City, California.

What medical group is Dr. Joseph I. Chen part of?

Dr. Chen is linked to Southern California Permanente Medical Group. Dmand AI links Dr. Chen to 1 more medical group.

Does Dr. Joseph I. Chen accept Medicare?

Yes. CMS lists Dr. Chen as accepting Medicare assignment.

Is Dr. Joseph I. Chen board certified?

Yes. Dr. Chen is board certified in plastic surgery by the American Board of Plastic Surgery.

Where did Dr. Joseph I. Chen go to medical school?

Dr. Chen graduated from UC Irvine School of Medicine in 2008.

Show 5 more questionsShow fewer questions

What drugs does Dr. Joseph I. Chen prescribe most?

In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Doxycycline Monohydrate.

Has Dr. Joseph I. Chen received payments from drug or device companies?

CMS Open Payments shows $7,307 in general payments to Dr. Chen from 6 companies from 2016 to 2025. The largest total came from Novadaq Technologies Inc.

How long has Dr. Joseph I. Chen been practicing?

Dr. Chen graduated from medical school in 2008, 18 years ago.

Does Dr. Joseph I. Chen do research?

Dmand AI links 5 publications to Dr. Chen.

Who does Dr. Joseph I. Chen publish with?

Dr. Chen's most frequent co-authors are Camille G. Cash, MD (1 shared paper), Warner C. Greene, MD, PhD (1 shared paper) and James Shun Dah Hu, MD (1 shared paper).

Selling to surgery practices?

See general surgeons in California by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)