Botulinum Toxins, Type ABotulismClostridium botulinum type A
Dr. Wilson J. Yan, MD
NPI1497990063PAC ID9931398724
- Medicare services, 2024
- 36
- Medicare patients, 2024
- 18
- Publications
- 1
- Hospital affiliations
- 2
- Industry payments
- $24
- Practice address
- 1425 S Main Street, Walnut Creek, CA 94596
- Practice phone
- Call (925) 295-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Yan'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. Wilson J. Yan is an internist in Walnut Creek, California
Dr. Yan practices at Walnut Creek Medical Center in Walnut Creek, California, part of Kaiser Permanente.
Dr. Yan's NPI, 1497990063, was assigned on December 10, 2008. Dr. Yan graduated from University of Illinois College of Medicine - Chicago in 2007. Dr. Yan holds California license A106002.
NPI and contact details
- NPI
- 1497990063NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9931398724
- NPI enumeration date
- December 10, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (925) 295-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Wilson J. Yan practices at Walnut Creek Medical Center in Walnut Creek, California
Dr. Yan's primary practice is Walnut Creek Medical Center, at 1425 S Main Street, Walnut Creek, CA 94596 in Contra Costa County. The practice phone is (925) 295-4000.
- Walnut Creek Medical Center1425 S Main Street, Walnut Creek, CA 94596 · Contra Costa CountyPhone(925) 295-4000
Source: Dmand AI Affiliation Data
Dr. Wilson J. Yan is affiliated with 3 sites of care and 2 medical groups
Dr. Yan's primary practice is Walnut Creek Medical Center in Walnut Creek, California, part of Kaiser Permanente. Dr. Yan is also affiliated with Antioch Medical Center. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Yan to 1 more group practice or clinic and 1 medical group, each named with a free account.
Antioch Medical CenterThe Permanente Medical Group, Inc.1 group practice or clinicName with a free account1 medical groupName with a free account
See all 5 affiliations for Dr. YanSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Wilson J. Yan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Yan practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Walnut Creek Medical Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every hospital where Dr. Yan practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across Kaiser Permanente and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Wilson J. Yan is one of 16,751 internists in California
Internal medicine is Dr. Yan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Yan is board certified in critical care medicine by the American Board of Internal Medicine. Dr. Yan is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Yan
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
16,751internists in California148internists in Walnut Creek42internists at Walnut Creek Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Wilson J. Yan billed Medicare for 36 services in 2024
CMS data shows 36 Medicare services from Dr. Yan across 1 procedure code in 2024, for 18 Medicare patients. Medicare paid $2,503 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202436
Medicare patients18
Paid by Medicare$2,503
Procedure codes1
Dr. Yan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 332024: 369%
Dr. Yan compared with the California median for internists, 2024
- Dr. Yan
- California median
- Medicare services
- 36vs 36190% below
- Medicare patients
- 18vs 15188% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Yan'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.
Need commercial claims for Dr. Yan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Yan and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Wilson J. Yan treated 18 Medicare patients in 2024, average age 71
CMS counts 18 Medicare patients who saw Dr. Yan in 2024. 75% of them have high blood pressure, and 61% have high cholesterol. Their average risk score is 3.74, 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. Yan's median patient age at 66, with 52% women.
Medicare patients, 202418
Average age71
Average risk score3.74
Chronic conditions among Dr. Yan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol61%
Share of Medicare patients with each condition. A patient can have several.
Dr. Yan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Wilson J. Yan takes part in Medicare
Dr. Yan 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)
For MedTech and pharma teams
Find internists like Dr. Yan by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Wilson J. Yan has 1 publication on record
Dmand AI links 1 paper to Dr. Yan. Dr. Yan's most frequent co-authors are Thomas E. Baudendistel, MD, Elizabeth Mary Grace, MD and Scott A. Josephson, MD.
Papers1
Dr. Yan's most frequent co-authors
- Thomas E. Baudendistel, MD1 shared paper
- Elizabeth Mary Grace, MD1 shared paper
- Scott A. Josephson, MD1 shared paper
Recent publications by Dr. Yan
See who Dr. Yan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Yan works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Wilson J. Yan received $24 in industry payments in 2018
CMS Open Payments shows 1 general payment to Dr. Yan from 1 drug or device company in 2018. Food and beverage make up the largest share, 100% of the total. GlaxoSmithKline, LLC. paid the most, $24.
Companies that paid Dr. Yan the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Wilson J. Yan graduated from University of Illinois College of Medicine - Chicago
Dr. Yan graduated from University of Illinois College of Medicine - Chicago in 2007.
- Medical school
- Board certified in critical care medicine
- Board certified in pulmonary disease
Source: Dmand AI Professional Profile Data
Dr. Wilson J. Yan accepts plans from 2 insurance carriers
Dr. Yan 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. Yan accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Wilson J. Yan'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Wilson J. Yan
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. Wilson J. Yan's NPI number?
Dr. Wilson J. Yan's NPI number is 1497990063. It was assigned on December 10, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Wilson J. Yan?
Dr. Wilson J. Yan is an internist in Walnut Creek, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Wilson J. Yan practice?
Dr. Yan practices at 1425 S Main Street, Walnut Creek, CA 94596. Dr. Yan's primary practice is Walnut Creek Medical Center in Walnut Creek, California, part of Kaiser Permanente. Dmand AI also links Dr. Yan to 1 group practice or clinic and 1 medical group.
What is Dr. Wilson J. Yan's office phone number?
The practice phone on file for Dr. Yan is (925) 295-4000.
What is Dr. Wilson J. Yan's medical license number?
Dr. Yan holds California license A106002.
Which hospitals is Dr. Wilson J. Yan affiliated with?
Dr. Yan practices at Walnut Creek Medical Center in Walnut Creek, California. Dr. Yan is also affiliated with Antioch Medical Center.
What medical group is Dr. Wilson J. Yan part of?
Dr. Yan is linked to The Permanente Medical Group, Inc. Dmand AI links Dr. Yan to 1 more medical group.
Does Dr. Wilson J. Yan accept Medicare?
Yes. CMS data shows Dr. Yan billed Medicare for 36 services in 2024, and Dr. Yan accepts Medicare assignment.
How many Medicare patients does Dr. Wilson J. Yan see?
CMS counts 18 Medicare patients who saw Dr. Yan in 2024, with an average age of 71.
Is Dr. Wilson J. Yan board certified?
Yes. Dr. Yan is board certified in critical care medicine by the American Board of Internal Medicine.
Show 7 more questionsShow fewer questions
What services does Dr. Wilson J. Yan bill to Medicare?
In 2024, Dr. Yan's most billed Medicare services were hospital inpatient care (99232).
Where did Dr. Wilson J. Yan go to medical school?
Dr. Yan graduated from University of Illinois College of Medicine - Chicago in 2007.
Has Dr. Wilson J. Yan received payments from drug or device companies?
CMS Open Payments shows $24 in general payments to Dr. Yan from 1 company from 2018 to 2018. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Wilson J. Yan been practicing?
Dr. Yan graduated from medical school in 2007, 19 years ago.
Does Dr. Wilson J. Yan do research?
Dmand AI links 1 publication to Dr. Yan.
Who does Dr. Wilson J. Yan publish with?
Dr. Yan's most frequent co-authors are Thomas E. Baudendistel, MD (1 shared paper), Elizabeth Mary Grace, MD (1 shared paper) and Scott A. Josephson, MD (1 shared paper).
What insurance does Dr. Wilson J. Yan accept?
Dr. Yan 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.
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