Dr. Luke Karl, MD
- Hospital affiliations
- 4
- Industry payments
- $39
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2021
- Practice address
- 1601 Ygnacio Valley Rd, Walnut Creek, CA 94598
- Practice phone
- Call (925) 939-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Karl'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. Luke Karl is an anesthesiologist in Walnut Creek, California
Dr. Karl practices at John Muir Medical Center, Walnut Creek in Walnut Creek, California, part of John Muir Health.
Dr. Karl's NPI, 1407436058, was assigned on April 8, 2021. Dr. Karl graduated from Georgetown University School of Medicine in 2021. Dr. Karl holds California license A200254.
- NPI
- 1407436058NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2264939644
- NPI enumeration date
- April 8, 2021
- NPI status
- Active
- Practice phone
- (925) 939-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Luke Karl practices at John Muir Medical Center, Walnut Creek in Walnut Creek, California
Dr. Karl's primary practice is John Muir Medical Center, Walnut Creek, at 1601 Ygnacio Valley Rd, Walnut Creek, CA 94598 in Contra Costa County. The practice phone is (925) 939-3000.
- John Muir Medical Center, Walnut Creek1601 Ygnacio Valley Rd, Walnut Creek, CA 94598 · Contra Costa CountyPhone(925) 939-3000
Source: Dmand AI Affiliation Data
Dr. Luke Karl is affiliated with 4 sites of care and 2 medical groups
Dr. Karl's primary practice is John Muir Medical Center, Walnut Creek in Walnut Creek, California, part of John Muir Health. Dr. Karl is also affiliated with Santa Clara Valley Medical Center. The medical group on file is CEP America. Dmand AI also links Dr. Karl to 2 more hospitals and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Luke Karl's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Karl practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| John Muir Medical Center, Walnut Creek | Available with a free account |
| +3 more sites and 1 medical group | 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 John Muir Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Luke Karl is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. Karl's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Karl is licensed in California.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
Anesthesiologists near Dr. Karl
Counts of anesthesiologists 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. Luke Karl's patients have a median age of 67
Across all payers, Dmand AI patient panel data puts Dr. Karl's median patient age at 67, with 54% women.
Dr. Karl's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women54%
- Men44%
Source: Dmand AI Patient Panel Data
Dr. Luke Karl received $39 in industry payments in 2025
CMS Open Payments shows 2 general payments to Dr. Karl from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Medtronic, Inc. paid the most, $39.
Companies that paid Dr. Karl the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Luke Karl graduated from Georgetown University School of Medicine
Dr. Karl graduated from Georgetown University School of Medicine in 2021.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Luke Karl'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 |
| Industry payments | Open Payments (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. Luke Karl
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. Luke Karl's NPI number?
Dr. Luke Karl's NPI number is 1407436058. It was assigned on April 8, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Luke Karl?
Dr. Luke Karl is an anesthesiologist in Walnut Creek, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Luke Karl practice?
Dr. Karl practices at 1601 Ygnacio Valley Rd, Walnut Creek, CA 94598. Dr. Karl's primary practice is John Muir Medical Center, Walnut Creek in Walnut Creek, California, part of John Muir Health. Dmand AI also links Dr. Karl to 2 hospitals and 1 medical group.
What is Dr. Luke Karl's office phone number?
The practice phone on file for Dr. Karl is (925) 939-3000.
What is Dr. Luke Karl's medical license number?
Dr. Karl holds California license A200254, one of 2 state licenses on file.
Which hospitals is Dr. Luke Karl affiliated with?
Dr. Karl practices at John Muir Medical Center, Walnut Creek in Walnut Creek, California. Dr. Karl is also affiliated with Santa Clara Valley Medical Center. Dmand AI links Dr. Karl to 2 more hospitals.
What medical group is Dr. Luke Karl part of?
Dr. Karl is linked to CEP America. Dmand AI links Dr. Karl to 1 more medical group.
Where did Dr. Luke Karl go to medical school?
Dr. Karl graduated from Georgetown University School of Medicine in 2021.
Has Dr. Luke Karl received payments from drug or device companies?
CMS Open Payments shows $39 in general payments to Dr. Karl from 1 company from 2025 to 2025. The largest total came from Medtronic, Inc.
How long has Dr. Luke Karl been practicing?
Dr. Karl graduated from medical school in 2021, 5 years ago.
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