Dr. Jessica Wen Xiao, MD
- Part D claims, 2024
- 71
- Hospital affiliations
- 1
- Industry payments
- $18
- Medical group
- 1
- Insurance carriers
- 2
- Practice address
- 4501 Sand Creek Road, Antioch, CA 94531
- Practice phone
- Call (925) 813-6500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Xiao'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. Jessica Wen Xiao is an internist in Antioch, California
Dr. Xiao practices at Antioch Medical Center in Antioch, California, part of Kaiser Permanente.
Dr. Xiao's NPI, 1164008785, was assigned on March 23, 2021. Dr. Xiao graduated from UC San Diego School of Medicine in 2021. Dr. Xiao's California license number on file is 185362.
- NPI
- 1164008785NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3779024716
- NPI enumeration date
- March 23, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (925) 813-6500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jessica Wen Xiao practices at Antioch Medical Center in Antioch, California
Dr. Xiao's primary practice is Antioch Medical Center, at 4501 Sand Creek Road, Antioch, CA 94531 in Contra Costa County. The practice phone is (925) 813-6500.
- Antioch Medical Center4501 Sand Creek Road, Antioch, CA 94531 · Contra Costa CountyPhone(925) 813-6500
Source: Dmand AI Affiliation Data
Dr. Jessica Wen Xiao is affiliated with 1 site of care and 1 medical group
Dr. Xiao's primary practice is Antioch Medical Center in Antioch, California, part of Kaiser Permanente. The medical group on file is The Permanente Medical Group, Inc.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jessica Wen Xiao's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Xiao practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Antioch Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jessica Wen Xiao is one of 16,751 internists in California
Internal medicine is Dr. Xiao's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Xiao is board certified in internal medicine by the American Board of Internal Medicine. Dr. Xiao has a license on file in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Xiao
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
Dr. Jessica Wen Xiao's patients have a median age of 69
Across all payers, Dmand AI patient panel data puts Dr. Xiao's median patient age at 69, with 59% women.
Dr. Xiao's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women59%
- Men40%
Source: Dmand AI Patient Panel Data
Dr. Jessica Wen Xiao wrote 71 Medicare Part D claims in 2024
In 2024, Dr. Xiao wrote 71 Medicare Part D claims for 25 patients. 80% of them were for generic drugs.
Dr. Xiao's Part D claims by kind of drug, 2024
- Generic57 claims80%
- Brand-name and other14 claims20%
Drug classes CMS tracks in Dr. Xiao's Part D claims, 2024
- Antibiotics30%21 of 71 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Jessica Wen Xiao takes part in Medicare
Dr. Xiao 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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Dr. Jessica Wen Xiao received $18 in industry payments in 2022
CMS Open Payments shows 1 general payment to Dr. Xiao from 1 drug or device company in 2022. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $18.
Companies that paid Dr. Xiao the most, 2022 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jessica Wen Xiao graduated from UC San Diego School of Medicine
Dr. Xiao graduated from UC San Diego School of Medicine in 2021.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Jessica Wen Xiao accepts plans from 2 insurance carriers
Dr. Xiao is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Xiao accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Jessica Wen Xiao'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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 (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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Jessica Wen Xiao
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. Jessica Wen Xiao's NPI number?
Dr. Jessica Wen Xiao's NPI number is 1164008785. It was assigned on March 23, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Jessica Wen Xiao?
Dr. Jessica Wen Xiao is an internist in Antioch, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Jessica Wen Xiao practice?
Dr. Xiao practices at 4501 Sand Creek Road, Antioch, CA 94531. Dr. Xiao's primary practice is Antioch Medical Center in Antioch, California, part of Kaiser Permanente.
What is Dr. Jessica Wen Xiao's office phone number?
The practice phone on file for Dr. Xiao is (925) 813-6500.
What is Dr. Jessica Wen Xiao's medical license number?
Dr. Xiao's California license number on file is 185362.
Which hospitals is Dr. Jessica Wen Xiao affiliated with?
Dr. Xiao practices at Antioch Medical Center in Antioch, California.
What medical group is Dr. Jessica Wen Xiao part of?
Dr. Xiao is linked to The Permanente Medical Group, Inc.
Does Dr. Jessica Wen Xiao accept Medicare?
Yes. CMS lists Dr. Xiao as accepting Medicare assignment.
Is Dr. Jessica Wen Xiao board certified?
Yes. Dr. Xiao is board certified in internal medicine by the American Board of Internal Medicine.
Where did Dr. Jessica Wen Xiao go to medical school?
Dr. Xiao graduated from UC San Diego School of Medicine in 2021.
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Has Dr. Jessica Wen Xiao received payments from drug or device companies?
CMS Open Payments shows $18 in general payments to Dr. Xiao from 1 company from 2022 to 2022. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Jessica Wen Xiao been practicing?
Dr. Xiao graduated from medical school in 2021, 5 years ago.
What insurance does Dr. Jessica Wen Xiao accept?
Dr. Xiao is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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