Dr. Jonathan Kei, MD
- Medicare services, 2016
- 11
- Part D claims, 2024
- 20
- Publications
- 12
- Hospital affiliations
- 1
- Industry payments
- $27
- Practice address
- 4647 Zion Ave, San Diego, CA 92120
- Practice phone
- Call (619) 528-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Kei'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. Jonathan Kei is an emergency medicine physician in San Diego, California
Dr. Kei practices at Kaiser Permanente Zion Medical Center in San Diego, California, part of Kaiser Permanente.
Dr. Kei's NPI, 1922028174, was assigned on July 20, 2006. Dr. Kei graduated from Sidney Kimmel Medical College in 2004. Dr. Kei holds California license A92379.
- NPI
- 1922028174NPI Registry (opens in a new tab)
- NPI enumeration date
- July 20, 2006
- NPI status
- Active
- Practice phone
- (619) 528-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Jonathan Kei practices at Kaiser Permanente Zion Medical Center in San Diego, California
Dr. Kei's primary practice is Kaiser Permanente Zion Medical Center, at 4647 Zion Ave, San Diego, CA 92120 in San Diego County. The practice phone is (619) 528-5000.
- Kaiser Permanente Zion Medical Center4647 Zion Ave, San Diego, CA 92120 · San Diego CountyPhone(619) 528-5000
Source: Dmand AI Affiliation Data
Dr. Jonathan Kei is affiliated with 2 sites of care and 1 medical group
Dr. Kei's primary practice is Kaiser Permanente Zion Medical Center in San Diego, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Kei to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jonathan Kei's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kei practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente Zion 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 Kaiser Permanente and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jonathan Kei is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Kei's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Kei is board certified in emergency medicine by the American Board of Emergency Medicine. Dr. Kei is licensed in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. Kei
Counts of emergency 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. Jonathan Kei billed Medicare for 11 services in 2016
CMS data shows 11 Medicare services from Dr. Kei across 1 procedure code in 2016. Medicare paid $1,211 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Kei compared with the California median for emergency medicine physicians, 2016
- Dr. Kei
- California median
- Medicare services
- 11vs 26596% below
- Part D claims
- 15vs 6276% below
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Kei's most billed Medicare procedure codes, 2016
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. Kei?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Kei and other emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jonathan Kei's patients have a median age of 38
Across all payers, Dmand AI patient panel data puts Dr. Kei's median patient age at 38, with 61% women.
Dr. Kei's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 38
Patient panel by sex, all payers
- Women61%
- Men39%
Source: Dmand AI Patient Panel Data
Dr. Jonathan Kei wrote 20 Medicare Part D claims in 2024
In 2024, Dr. Kei wrote 20 Medicare Part D claims for 19 patients. 80% of them were for generic drugs. CMS names the drug for 15 of them, across 1 drug with 11 or more claims each, at $150 in total drug cost. In 2016, CMS named 24 claims across 2 drugs.
Dr. Kei's Part D claims by kind of drug, 2024
- Generic16 claims80%
- Brand-name and other4 claims20%
Dr. Kei's most prescribed drugs by claims, 2017
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 242017: 1538%
Drugs named by CMS: 1 in 2017, 2 in 2016.
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
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.
Dr. Jonathan Kei has 12 publications on record
Dmand AI links 12 papers to Dr. Kei, published from 2012 to 2024. The most frequent topics are Intubation, Intratracheal. Dr. Kei has published most often in Perm J. Dr. Kei's most frequent co-authors are Jeffrey John Cavendish, MD, Paul Burbank Dohrenwend, MD and Minh Van Le, MD.
Topics Dr. Kei writes about most
- Intubation, Intratracheal
Dr. Kei's most frequent co-authors
- Jeffrey John Cavendish, MD1 shared paper
- Paul Burbank Dohrenwend, MD1 shared paper
- Minh Van Le, MD1 shared paper
Recent publications by Dr. Kei
See who Dr. Kei researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Kei works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Jonathan Kei received $27 in industry payments in 2018
CMS Open Payments shows 1 general payment to Dr. Kei from 1 drug or device company in 2018. Food and beverage make up the largest share, 100% of the total. Vapotherm Inc paid the most, $27.
Companies that paid Dr. Kei 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. Jonathan Kei graduated from Sidney Kimmel Medical College
Dr. Kei graduated from Sidney Kimmel Medical College in 2004.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. Jonathan Kei accepts plans from 1 insurance carrier
Dr. Kei is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
Plan types Dr. Kei accepts, by number of carriers
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Jonathan Kei'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 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) |
| 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. Jonathan Kei
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. Jonathan Kei's NPI number?
Dr. Jonathan Kei's NPI number is 1922028174. It was assigned on July 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Jonathan Kei?
Dr. Jonathan Kei is an emergency medicine physician in San Diego, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Jonathan Kei practice?
Dr. Kei practices at 4647 Zion Ave, San Diego, CA 92120. Dr. Kei's primary practice is Kaiser Permanente Zion Medical Center in San Diego, California, part of Kaiser Permanente. Dmand AI also links Dr. Kei to 1 group practice or clinic.
What is Dr. Jonathan Kei's office phone number?
The practice phone on file for Dr. Kei is (619) 528-5000.
What is Dr. Jonathan Kei's medical license number?
Dr. Kei holds California license A92379.
Which hospitals is Dr. Jonathan Kei affiliated with?
Dr. Kei practices at Kaiser Permanente Zion Medical Center in San Diego, California.
What medical group is Dr. Jonathan Kei part of?
Dr. Kei is linked to Southern California Permanente Medical Group.
Does Dr. Jonathan Kei accept Medicare?
Yes. CMS data shows Dr. Kei billed Medicare for 11 services in 2016.
Is Dr. Jonathan Kei board certified?
Yes. Dr. Kei is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. Jonathan Kei bill to Medicare?
In 2016, Dr. Kei's most billed Medicare services were emergency department visit (99285).
Show 7 more questionsShow fewer questions
Where did Dr. Jonathan Kei go to medical school?
Dr. Kei graduated from Sidney Kimmel Medical College in 2004.
What drugs does Dr. Jonathan Kei prescribe most?
In 2017 Medicare Part D data, Dr. Kei's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Jonathan Kei received payments from drug or device companies?
CMS Open Payments shows $27 in general payments to Dr. Kei from 1 company from 2018 to 2018. The largest total came from Vapotherm Inc.
How long has Dr. Jonathan Kei been practicing?
Dr. Kei graduated from medical school in 2004, 22 years ago.
Does Dr. Jonathan Kei do research?
Dmand AI links 12 publications to Dr. Kei, published from 2012 to 2024.
Who does Dr. Jonathan Kei publish with?
Dr. Kei's most frequent co-authors are Jeffrey John Cavendish, MD (1 shared paper), Paul Burbank Dohrenwend, MD (1 shared paper) and Minh Van Le, MD (1 shared paper).
What insurance does Dr. Jonathan Kei accept?
Dr. Kei is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
Selling to emergency medicine practices?
See emergency medicine physicians 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