Dr. Can Chen, MD

  • Portola Valley, CA
  • Internist
NPI1942649157PAC ID4284907411
Medicare services, 2024
559
Medicare patients, 2024
109
Part D claims, 2024
1,135
MIPS score, 2024
89
Hospital affiliations
1
Practice address
501 Portola Road, Portola Valley, CA 94028
Practice phone
Call (650) 851-1501
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

The Sequoias Portola Valley

Skilled Nursing Facility - Part of a CCRC · Portola Valley, California

See all 5 affiliations

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Dr. Can Chen is an internist in Portola Valley, California

Dr. Chen practices at The Sequoias Portola Valley in Portola Valley, California.

Dr. Chen's NPI, 1942649157, was assigned on June 20, 2013. Dr. Chen graduated from Beijing Medical University in 2010. Dr. Chen holds California license A138281.

NPI and contact details
Medicare PAC ID
4284907411
NPI enumeration date
June 20, 2013
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(650) 851-1501
Professional email
Get email
Personal email
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Mobile number
Get number
Sex
Female
Estimated age
42
Medical school graduation
2010

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

Dr. Can Chen practices at The Sequoias Portola Valley in Portola Valley, California

Dr. Chen's primary practice is The Sequoias Portola Valley, at 501 Portola Road, Portola Valley, CA 94028 in San Mateo County. The practice phone is (650) 851-1501.

  • The Sequoias Portola Valley
    501 Portola Road, Portola Valley, CA 94028 · San Mateo CountyPhone(650) 851-1501

Source: Dmand AI Affiliation Data

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

Dr. Chen's primary practice is The Sequoias Portola Valley in Portola Valley, California. Dr. Chen is also affiliated with Stanford Hospital at 300 Pasteur Drive. The medical group on file is Stanford Health Care. Dmand AI also links Dr. Chen to 1 more hospice and 1 senior living community, each named with a free account.

See all 5 affiliations for Dr. Chen

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

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

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
The Sequoias Portola ValleyAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Can Chen is one of 16,751 internists in California

Internal medicine is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chen is board certified in geriatric medicine by the American Board of Internal Medicine. Dr. Chen is licensed in California.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense A138281 · 2015 to 2026 · taxonomy 207R00000X

Clinical focus

Dmand AI lists acid reflux, alzheimer's disease, anxiety, arteritis, arthritis, atrial fibrillation and flutter, cardiomyopathy and chronic anemia among the conditions Dr. Chen treats.

Internists near Dr. Chen

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

16,751internists in California
2internists in Portola Valley

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

Dr. Can Chen billed Medicare for 559 services in 2024

CMS data shows 559 Medicare services from Dr. Chen across 5 procedure codes in 2024, for 109 Medicare patients. Medicare paid $51,592 for them.

Medicare services, 2024559
Medicare patients109
Paid by Medicare$51,592
Procedure codes5

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

  • 2023
  • 2024
Office and hospital visits
2023: 6242024: 55910%

Where Dr. Chen's Medicare services took place, 2024

  • In an office10919%
  • In a facility45081%

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

  • Dr. Chen
  • California median
Medicare services
559vs 36155% above
Medicare patients
109vs 15128% below
Part D claims
918vs 4212.2 times

Medians across 15,815 internists 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 internists in California.

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

Dr. Can Chen treated 109 Medicare patients in 2024, average age 89

CMS counts 109 Medicare patients who saw Dr. Chen in 2024. The largest group is 85 and over, with 87 patients. 75% of them have high blood pressure, and 65% have high cholesterol. Their average risk score is 1.61, 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 88, with 65% women.

Medicare patients, 2024109
Average age89
Average risk score1.61

Dr. Chen's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Chen's Medicare patients by sex, 2024

  • Women7670%
  • Men3330%

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

  1. High blood pressure75%
  2. High cholesterol65%
  3. Arthritis50%
  4. Atrial fibrillation49%
  5. Mood disorders46%
  6. Depression44%
  7. Osteoporosis44%
  8. Heart failure41%

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 88

Patient panel by sex, all payers

  • Women65%
  • Men33%

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

Dr. Can Chen wrote 1,135 Medicare Part D claims in 2024

In 2024, Dr. Chen wrote 1,135 Medicare Part D claims for 74 patients. 81% of them were for generic drugs. CMS names the drug for 918 of them, across 37 drugs with 11 or more claims each, at $82,057 in total drug cost. In 2023, CMS named 815 claims across 27 drugs.

Part D claims, 20241,135
Drugs named by CMS37
Total drug cost$82,057
Part D patients74

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

  • Generic919 claims81%
  • Brand-name216 claims19%

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

  • Opioids2%25 of 1,135 claims
  • Antibiotics3%29 of 1,135 claims
  • Antipsychotics, patients 65 and over1%13 of 1,135 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: 8152024: 91813%

Drugs named by CMS: 37 in 2024, 27 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. Can Chen scored 89 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Chen for performance year 2024, reported as part of a group. Dr. Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Chen's MIPS scores, performance year 2024

  • 89of 100Final score
  • 87.1of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 70of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Can Chen received $168 in industry payments in 2019

CMS Open Payments shows 2 general payments to Dr. Chen from 2 drug and device companies in 2019. Food and beverage make up the largest share, 100% of the total. ACADIA Pharmaceuticals Inc paid the most, $90.

Companies that paid Dr. Chen the most, 2019 to 2019

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. Can Chen graduated from Beijing Medical University

Dr. Chen graduated from Beijing Medical University in 2010.

  1. Medical schoolBeijing Medical University
  2. Board certified in geriatric medicineAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Can Chen accepts plans from 7 insurance carriers

Dr. Chen is in network with 7 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.

  • Elevance
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • United Healthcare
  • Blue Cross and Blue Shield of Kansas City
  • CMS Medicare

Plan types Dr. Chen accepts, by number of carriers

  1. Medicare4
  2. PPO4
  3. HMO3
  4. POS3
  5. EPO2

Source: Dmand AI Insurance Network Data

Sources for Dr. Can 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 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
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. Can 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. Can Chen's NPI number?

Dr. Can Chen's NPI number is 1942649157. It was assigned on June 20, 2013, and it is active in the NPI Registry.

What kind of doctor is Dr. Can Chen?

Dr. Can Chen is an internist in Portola Valley, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Can Chen practice?

Dr. Chen practices at 501 Portola Road, Portola Valley, CA 94028. Dr. Chen's primary practice is The Sequoias Portola Valley in Portola Valley, California. Dmand AI also links Dr. Chen to 1 hospice and 1 senior living community.

What is Dr. Can Chen's office phone number?

The practice phone on file for Dr. Chen is (650) 851-1501.

What is Dr. Can Chen's medical license number?

Dr. Chen holds California license A138281.

Which hospitals is Dr. Can Chen affiliated with?

Dr. Chen is affiliated with Stanford Hospital at 300 Pasteur Drive.

What medical group is Dr. Can Chen part of?

Dr. Chen is linked to Stanford Health Care.

Does Dr. Can Chen accept Medicare?

Yes. CMS data shows Dr. Chen billed Medicare for 559 services in 2024, and Dr. Chen accepts Medicare assignment.

What is Dr. Can Chen's MIPS score?

Dr. Chen's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.

How many Medicare patients does Dr. Can Chen see?

CMS counts 109 Medicare patients who saw Dr. Chen in 2024, with an average age of 89.

Show 7 more questionsShow fewer questions

Is Dr. Can Chen board certified?

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

What services does Dr. Can Chen bill to Medicare?

In 2024, Dr. Chen's most billed Medicare services were nursing facility care (99309), home visit (99349) and nursing facility care (99305).

Where did Dr. Can Chen go to medical school?

Dr. Chen graduated from Beijing Medical University in 2010.

What drugs does Dr. Can Chen prescribe most?

In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Eliquis, Atorvastatin Calcium and Mirtazapine.

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

CMS Open Payments shows $168 in general payments to Dr. Chen from 2 companies from 2019 to 2019. The largest total came from ACADIA Pharmaceuticals Inc.

How long has Dr. Can Chen been practicing?

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

What insurance does Dr. Can Chen accept?

Dr. Chen is in network with 7 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.

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