Junnan Chen, PA

  • Trenton, NJ
  • Dermatologist
NPI1780150425PAC ID8123417615
Medicare services, 2024
186
Medicare patients, 2024
67
Part D claims, 2024
104
Industry payments
$2,586
Affiliated sites
1
Practice address
641 Us-130, Trenton, NJ 08691
Practice phone
Call (804) 968-5700
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Patient First Maryland Physician's Group

Trenton, New Jersey

See all 2 affiliations

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Junnan Chen is a dermatologist in Trenton, New Jersey

Junnan Chen practices at Patient First Maryland Physician's Group in Trenton, New Jersey.

Junnan Chen's NPI, 1780150425, was assigned on October 21, 2018. Junnan Chen holds Maryland license C06976.

NPI and contact details
Medicare PAC ID
8123417615
NPI enumeration date
October 21, 2018
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(804) 968-5700
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
34
Medical school graduation
2018

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

Junnan Chen practices at Patient First Maryland Physician's Group in Trenton, New Jersey

Junnan Chen's primary practice is Patient First Maryland Physician's Group, at 641 Us-130, Trenton, NJ 08691 in Mercer County. The practice phone is (804) 968-5700.

  • Patient First Maryland Physician's Group
    641 Us-130, Trenton, NJ 08691 · Mercer CountyPhone(804) 968-5700

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

Junnan Chen is affiliated with 2 sites of care

Junnan Chen's primary practice is Patient First Maryland Physician's Group in Trenton, New Jersey. Dmand AI also links Junnan Chen to 1 physician office, named with a free account.

Patient First Maryland Physician's GroupTrenton, New JerseyPrimary
1 physician officeName with a free account
See all 2 affiliations for Junnan Chen

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

Dmand AI tracks the EHR system at Junnan Chen's practice

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

EHR by site
SiteEHR vendor and product
Patient First Maryland Physician's GroupAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Junnan Chen is one of 376 dermatologists in New Jersey

Dermatology is Junnan Chen's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Junnan Chen is licensed in Maryland.

Specialties and state licenses

  • Dermatology, MarylandPrimaryLicense C06976 · taxonomy 207N00000X

Dermatologists near Junnan Chen

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

376dermatologists in New Jersey
4dermatologists in Trenton

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

Junnan Chen billed Medicare for 186 services in 2024

CMS data shows 186 Medicare services from Junnan Chen across 5 procedure codes in 2024, for 67 Medicare patients. Medicare paid $10,698 for them. Every service was in an office.

Medicare services, 2024186
Medicare patients67
Paid by Medicare$10,698
Procedure codes5

Junnan Chen's Medicare services by type, 2022 to 2024

  • 2022
  • 2024
Office and hospital visits
2022: 4822024: 10079%
Surgery
2022: 9112024: 8691%

Junnan Chen compared with the New Jersey median for dermatologists, 2024

  • Junnan Chen
  • New Jersey median
Medicare services
186vs 1,84390% below
Medicare patients
67vs 53487% below
Part D claims
51vs 43788% below

Medians across 381 dermatologists in New Jersey with Dmand AI profiles that report each measure.

Junnan 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 Junnan Chen

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

Junnan Chen treated 67 Medicare patients in 2024, average age 70

CMS counts 67 Medicare patients who saw Junnan Chen in 2024. The largest group is 65 to 74, with 44 patients. 60% of them have high cholesterol, and 58% have high blood pressure. Their average risk score is 0.89, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Junnan Chen's median patient age at 44, with 57% women.

Medicare patients, 202467
Average age70
Average risk score0.89

Junnan Chen's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Junnan Chen's Medicare patients by sex, 2024

  • Women4161%
  • Men2639%

Chronic conditions among Junnan Chen's Medicare patients, 2024

  1. High cholesterol60%
  2. High blood pressure58%
  3. Arthritis42%
  4. Mood disorders22%
  5. Diabetes19%
  6. Anxiety18%
  7. Depression18%
  8. Ischemic heart disease16%

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

Junnan 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 44

Patient panel by sex, all payers

  • Women57%
  • Men42%

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

Junnan Chen wrote 104 Medicare Part D claims in 2024

In 2024, Junnan Chen wrote 104 Medicare Part D claims for 48 patients. 93% of them were for generic drugs. CMS names the drug for 51 of them, across 3 drugs with 11 or more claims each, at $511 in total drug cost. In 2022, CMS named 199 claims across 10 drugs.

Part D claims, 2024104
Drugs named by CMS3
Total drug cost$511
Part D patients48

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

  • Generic97 claims93%
  • Brand-name and other7 claims7%

Junnan 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.

Part D claims for drugs CMS names, 2022 to 2024

  • 2022
  • 2024
Claims for drugs CMS names
2022: 1992024: 5174%

Drugs named by CMS: 3 in 2024, 10 in 2022.

See all prescribing by Junnan 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 Junnan Chen takes part in Medicare

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

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Junnan Chen received $2,586 in industry payments from 2021 to 2025

CMS Open Payments shows 129 general payments to Junnan Chen from 19 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 97% of the total. LEO Pharma Inc. paid the most, $822.

General payments to Junnan Chen by program year, 2021 to 2025

General payments to Junnan Chen by kind, 2021 to 2025

$2.6Kin total
  • Food and beverage$2,51497%
  • Education$723%

Companies that paid Junnan Chen the most, 2021 to 2025

Share is of all general payments to this clinician.

See all payments to Junnan Chen

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

Sources for Junnan 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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
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 Junnan 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 Junnan Chen's NPI number?

Junnan Chen's NPI number is 1780150425. It was assigned on October 21, 2018, and it is active in the NPI Registry.

What does Junnan Chen specialize in?

Junnan Chen is a dermatologist in Trenton, New Jersey. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).

Where does Junnan Chen practice?

Junnan Chen practices at 641 Us-130, Trenton, NJ 08691. Junnan Chen's primary practice is Patient First Maryland Physician's Group in Trenton, New Jersey. Dmand AI also links Junnan Chen to 1 physician office.

What is Junnan Chen's office phone number?

The practice phone on file for Junnan Chen is (804) 968-5700.

What is Junnan Chen's medical license number?

Junnan Chen holds Maryland license C06976.

Does Junnan Chen accept Medicare?

Yes. CMS data shows Junnan Chen billed Medicare for 186 services in 2024, and Junnan Chen accepts Medicare assignment.

How many Medicare patients does Junnan Chen see?

CMS counts 67 Medicare patients who saw Junnan Chen in 2024, with an average age of 70.

What services does Junnan Chen bill to Medicare?

In 2024, Junnan Chen's most billed Medicare services were office visit, new patient (99203), office visit, established patient (99213) and surgery: skin and soft tissue (17110).

What drugs does Junnan Chen prescribe most?

In 2024 Medicare Part D data, Junnan Chen's most prescribed drugs by claims were Triamcinolone Acetonide, Ketoconazole and Mupirocin.

Has Junnan Chen received payments from drug or device companies?

CMS Open Payments shows $2,586 in general payments to Junnan Chen from 19 companies from 2021 to 2025. The largest total came from LEO Pharma Inc.

How long has Junnan Chen been practicing?

Junnan Chen graduated from medical school in 2018, 8 years ago.

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