Dr. Ruisu Chen, MD
- Part D claims, 2024
- 520
- Hospital affiliations
- 2
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2020
- Practice address
- 710 Lawrence Expy, Santa Clara, CA 95051
- Practice phone
- Call (408) 851-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Permanente Medical Group Inc
Santa Clara, California
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.
Dr. Ruisu Chen is a family medicine physician in Santa Clara, California
Dr. Chen practices at Permanente Medical Group Inc in Santa Clara, California.
Dr. Chen's NPI, 1548881337, was assigned on May 3, 2020. Dr. Chen graduated from Medical College of Wisconsin in 2020. Dr. Chen holds Pennsylvania license MT220115.
- NPI
- 1548881337NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2567885445
- NPI enumeration date
- May 3, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (408) 851-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ruisu Chen practices at Permanente Medical Group Inc in Santa Clara, California
Dr. Chen's primary practice is Permanente Medical Group Inc, at 710 Lawrence Expy, Santa Clara, CA 95051 in Santa Clara County. The practice phone is (408) 851-1000.
- Permanente Medical Group Inc710 Lawrence Expy, Santa Clara, CA 95051 · Santa Clara CountyPhone(408) 851-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ruisu Chen is affiliated with 3 sites of care and 1 medical group
Dr. Chen's primary practice is Permanente Medical Group Inc in Santa Clara, California. Dr. Chen is also affiliated with Santa Clara Medical Center. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Chen to 1 more hospital, named with a free account.
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. Ruisu Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Permanente Medical Group Inc | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ruisu Chen is one of 15,680 family medicine physicians in California
Family medicine is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Chen is licensed in Pennsylvania.
Specialties and state licenses
- Family medicine, PennsylvaniaPrimary
Family medicine physicians near Dr. Chen
Counts of family medicine physicians 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. Ruisu Chen's patients have a median age of 45
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 45, with 68% 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 45
Patient panel by sex, all payers
- Women68%
- Men32%
Source: Dmand AI Patient Panel Data
Dr. Ruisu Chen wrote 520 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 520 Medicare Part D claims for 140 patients. 89% of them were for generic drugs. CMS names the drug for 245 of them, across 13 drugs with 11 or more claims each, at $9,238 in total drug cost. In 2023, CMS named 310 claims across 16 drugs.
Dr. Chen's Part D claims by kind of drug, 2024
- Generic465 claims89%
- Brand-name and other55 claims11%
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
- Antibiotics4%20 of 520 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: 3102024: 24521%
Drugs named by CMS: 13 in 2024, 16 in 2023.
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. Ruisu 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. Ruisu Chen graduated from Medical College of Wisconsin
Dr. Chen graduated from Medical College of Wisconsin in 2020.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ruisu Chen's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Ruisu 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. Ruisu Chen's NPI number?
Dr. Ruisu Chen's NPI number is 1548881337. It was assigned on May 3, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Ruisu Chen?
Dr. Ruisu Chen is a family medicine physician in Santa Clara, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Ruisu Chen practice?
Dr. Chen practices at 710 Lawrence Expy, Santa Clara, CA 95051. Dr. Chen's primary practice is Permanente Medical Group Inc in Santa Clara, California. Dmand AI also links Dr. Chen to 1 hospital.
What is Dr. Ruisu Chen's office phone number?
The practice phone on file for Dr. Chen is (408) 851-1000.
What is Dr. Ruisu Chen's medical license number?
Dr. Chen holds Pennsylvania license MT220115.
Which hospitals is Dr. Ruisu Chen affiliated with?
Dr. Chen is affiliated with Santa Clara Medical Center. Dmand AI links Dr. Chen to 1 more hospital.
What medical group is Dr. Ruisu Chen part of?
Dr. Chen is linked to The Permanente Medical Group, Inc.
Does Dr. Ruisu Chen accept Medicare?
Yes. CMS lists Dr. Chen as accepting Medicare assignment.
Does Dr. Ruisu Chen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chen as offering telehealth services.
Where did Dr. Ruisu Chen go to medical school?
Dr. Chen graduated from Medical College of Wisconsin in 2020.
What drugs does Dr. Ruisu Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
How long has Dr. Ruisu Chen been practicing?
Dr. Chen graduated from medical school in 2020, 6 years ago.
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