Katherine Chen
- Part D claims, 2024
- 1,388
- Hospital affiliations
- 1
- Industry payments
- $1,693
- Medical group
- 1
- State license
- 1
- Practice address
- 901 Nevin Ave, Richmond, CA 94801
- Practice phone
- Call (510) 307-1555
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Richmond Medical Center
Richmond, California
Find Katherine 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.
Katherine Chen is an internist in Richmond, California
Katherine Chen practices at Richmond Medical Center in Richmond, California.
Katherine Chen's NPI, 1780927491, was assigned on April 1, 2013. Katherine Chen holds California license CA13655.
- NPI
- 1780927491NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8820383029
- NPI enumeration date
- April 1, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (510) 307-1555
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Katherine Chen practices at Richmond Medical Center in Richmond, California
Katherine Chen's primary practice is Richmond Medical Center, at 901 Nevin Ave, Richmond, CA 94801 in Contra Costa County. The practice phone is (510) 307-1555.
- Richmond Medical Center901 Nevin Ave, Richmond, CA 94801 · Contra Costa CountyPhone(510) 307-1555
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Katherine Chen is affiliated with 2 sites of care and 1 medical group
Katherine Chen's primary practice is Richmond Medical Center in Richmond, California. Katherine Chen is also affiliated with Oakland Medical Center. The medical group on file is The Permanente Medical Group, Inc.
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 Katherine Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Katherine Chen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Richmond Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Katherine Chen is one of 16,751 internists in California
Internal medicine is Katherine Chen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Katherine Chen is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Katherine Chen
Counts of internists 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
Katherine Chen's patients have a median age of 52
Across all payers, Dmand AI patient panel data puts Katherine Chen's median patient age at 52, with 66% women.
Katherine 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 52
Patient panel by sex, all payers
- Women66%
- Men32%
Source: Dmand AI Patient Panel Data
Katherine Chen wrote 1,388 Medicare Part D claims in 2024
In 2024, Katherine Chen wrote 1,388 Medicare Part D claims for 213 patients. 91% of them were for generic drugs. CMS names the drug for 1,062 of them, across 42 drugs with 11 or more claims each, at $26,361 in total drug cost. In 2023, CMS named 1,141 claims across 43 drugs.
Katherine Chen's Part D claims by kind of drug, 2024
- Generic1,268 claims91%
- Brand-name and other120 claims9%
Katherine 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 Katherine Chen's Part D claims, 2024
- Opioids1%15 of 1,388 claims
- Antibiotics1%15 of 1,388 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: 1,1412024: 1,0627%
Drugs named by CMS: 42 in 2024, 43 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
Katherine Chen offers telehealth to Medicare patients
Katherine Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Katherine Chen as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Katherine Chen received $1,693 in industry payments from 2023 to 2025
CMS Open Payments shows 8 general payments to Katherine Chen from 4 drug and device companies from 2023 to 2025. Travel and lodging make up the largest share, 52% of the total. TissueTech, Inc. paid the most, $1,469.
General payments to Katherine Chen by program year, 2023 to 2025
General payments to Katherine Chen by kind, 2023 to 2025
- Travel and lodging$88752%
- Food and beverage$80648%
Companies that paid Katherine Chen the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Katherine 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Katherine 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 Katherine Chen's NPI number?
Katherine Chen's NPI number is 1780927491. It was assigned on April 1, 2013, and it is active in the NPI Registry.
What does Katherine Chen specialize in?
Katherine Chen is an internist in Richmond, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Katherine Chen practice?
Katherine Chen practices at 901 Nevin Ave, Richmond, CA 94801. Katherine Chen's primary practice is Richmond Medical Center in Richmond, California.
What is Katherine Chen's office phone number?
The practice phone on file for Katherine Chen is (510) 307-1555.
What is Katherine Chen's medical license number?
Katherine Chen holds California license CA13655.
Which hospitals is Katherine Chen affiliated with?
Katherine Chen is affiliated with Oakland Medical Center.
What medical group is Katherine Chen part of?
Katherine Chen is linked to The Permanente Medical Group, Inc.
Does Katherine Chen accept Medicare?
Yes. CMS lists Katherine Chen as accepting Medicare assignment.
Does Katherine Chen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Katherine Chen as offering telehealth services.
What drugs does Katherine Chen prescribe most?
In 2024 Medicare Part D data, Katherine Chen's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Levothyroxine Sodium.
Has Katherine Chen received payments from drug or device companies?
CMS Open Payments shows $1,693 in general payments to Katherine Chen from 4 companies from 2023 to 2025. The largest total came from TissueTech, Inc.
How long has Katherine Chen been practicing?
Katherine Chen graduated from medical school in 2013, 13 years ago.
Selling to internal medicine practices?
See internists 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