Dr. Jonathan S. Tam, MD
- Part D claims, 2024
- 12
- Publications
- 16
- Clinical trials
- 3
- Hospital affiliations
- 1
- Industry payments
- $32,755
- Practice address
- 4650 Sunset Blvd, MS 108, Los Angeles, CA 90027
- Practice phone
- Call (323) 669-2164
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Tam's professional email, personal email and mobile number
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Dr. Jonathan S. Tam is an allergy physician in Los Angeles, California
Dr. Tam practices at Children's Hospital Los Angeles in Los Angeles, California, part of Children's Hospital Los Angeles.
Dr. Tam's NPI, 1619133600, was assigned on July 30, 2008. Dr. Tam graduated from Feinberg School of Medicine in 2007. Dr. Tam holds California license A125923.
- NPI
- 1619133600NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2264615731
- NPI enumeration date
- July 30, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (323) 669-2164
- 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. Jonathan S. Tam practices at Children's Hospital Los Angeles in Los Angeles, California
Dr. Tam's primary practice is Children's Hospital Los Angeles, at 4650 Sunset Blvd, MS 108, Los Angeles, CA 90027 in Los Angeles County. The practice phone is (323) 669-2164.
- Children's Hospital Los Angeles4650 Sunset Blvd, MS 108, Los Angeles, CA 90027 · Los Angeles CountyPhone(323) 669-2164
Source: Dmand AI Affiliation Data
Dr. Jonathan S. Tam is affiliated with 1 site of care and 1 medical group
Dr. Tam's primary practice is Children's Hospital Los Angeles in Los Angeles, California, part of Children's Hospital Los Angeles. The medical group on file is Children's Hospital Los Angeles Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jonathan S. Tam's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tam practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Children's Hospital Los Angeles | 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 Children's Hospital Los Angeles and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jonathan S. Tam is one of 136 allergy physicians in California
Allergy is Dr. Tam's primary specialty in the NPI Registry, under taxonomy code 207KA0200X. Dr. Tam is board certified in allergy & immunology by the American Board of Allergy and Immunology. Dmand AI has Dr. Tam's licenses on file in 3 states: California, Wisconsin and Illinois.
Specialties and state licenses
- Allergy, CaliforniaPrimary
- Wisconsin license
- Pediatrics, Illinois
Allergy physicians near Dr. Tam
Counts of allergy 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 S. Tam's patients have a median age of 10
Across all payers, Dmand AI patient panel data puts Dr. Tam's median patient age at 10, with 45% women.
Dr. Tam's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 10
Patient panel by sex, all payers
- Women45%
- Men55%
Source: Dmand AI Patient Panel Data
Dr. Jonathan S. Tam wrote 12 Medicare Part D claims in 2024
In 2024, Dr. Tam wrote 12 Medicare Part D claims.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Jonathan S. Tam takes part in Medicare
Dr. Tam 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. Jonathan S. Tam has 16 publications on record
Dmand AI links 16 papers to Dr. Tam, published from 2012 to 2025. 2024 was the busiest year, with 3. The most frequent topics are Myocardial Infarction, Myocytes, Cardiac and Regeneration. Dr. Tam has published most often in Tissue Eng Part B Rev. Dr. Tam's most frequent co-authors are Amal H. Assa'Ad, MD, Lourdes Delrosso, MD and Mitchell H. Grayson, MD.
Dr. Tam's papers by year, 2015 to 2025
Topics Dr. Tam writes about most
- Myocardial Infarction
- Myocytes, Cardiac
- Regeneration
Dr. Tam's most frequent co-authors
- Amal H. Assa'Ad, MD2 shared papers
- Lourdes Delrosso, MD2 shared papers
- Mitchell H. Grayson, MD2 shared papers
Recent publications by Dr. Tam
Tissue Eng Part B Rev
See who Dr. Tam researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Tam works with, so you can find a warm path to the right allergy physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Jonathan S. Tam has worked on 3 clinical trials
Dmand AI links Dr. Tam to 3 clinical trials. Conditions studied include Eczema, Milk Hypersensitivity and Primary Immunodeficiency Diseases. Open Payments lists research payments to Dr. Tam that name 1 trial.
Conditions in Dr. Tam's trials
- Eczema
- Milk Hypersensitivity
- Primary Immunodeficiency Diseases
- Dermatitis, Atopic
- Food Hypersensitivity
Investigators on the most trials with Dr. Tam
- Lisa Ann Beck, MD1 shared trial
- Bradley A. Becker, MD1 shared trial
- Mark Boguniewicz, MD1 shared trial
Recent clinical trials with Dr. Tam
Sources: Open Payments (CMS), 2025 data, released July 7, 2026; Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Jonathan S. Tam received $32,755 in industry payments from 2018 to 2025
CMS Open Payments shows 42 general payments to Dr. Tam from 11 drug and device companies from 2018 to 2025. Speaker and faculty fees make up the largest share, 57% of the total. ARS Pharmaceuticals Operations, Inc. paid the most, $21,948. It also lists 10 research payments totaling $1,383 in 2017, naming 1 clinical trial.
General payments to Dr. Tam by program year, 2018 to 2025
General payments to Dr. Tam by kind, 2018 to 2025
- Speaker and faculty fees$18,60057%
- Consulting fees$8,31125%
- Travel and lodging$4,30813%
- Food and beverage$1,5355%
Companies that paid Dr. Tam the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jonathan S. Tam graduated from Feinberg School of Medicine
Dr. Tam graduated from Feinberg School of Medicine in 2007.
- Medical school
- Board certified in allergy & immunology
Source: Dmand AI Professional Profile Data
Dr. Jonathan S. Tam accepts plans from 17 insurance carriers
Dr. Tam is in network with 17 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Blue Cross Blue Shield of Massachusetts
- LA Care
- Molina
- +9 more carriersWith a free account
Plan types Dr. Tam accepts, by number of carriers
- PPO9
- HMO8
- Medicare7
- EPO4
- POS4
- Medicaid2
Source: Dmand AI Insurance Network Data
Sources for Dr. Jonathan S. Tam'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (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. Jonathan S. Tam
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 S. Tam's NPI number?
Dr. Jonathan S. Tam's NPI number is 1619133600. It was assigned on July 30, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Jonathan S. Tam?
Dr. Jonathan S. Tam is an allergy physician in Los Angeles, California. The primary specialty in the NPI Registry is Allergy Physician (taxonomy code 207KA0200X).
Where does Dr. Jonathan S. Tam practice?
Dr. Tam practices at 4650 Sunset Blvd, MS 108, Los Angeles, CA 90027. Dr. Tam's primary practice is Children's Hospital Los Angeles in Los Angeles, California, part of Children's Hospital Los Angeles.
What is Dr. Jonathan S. Tam's office phone number?
The practice phone on file for Dr. Tam is (323) 669-2164.
What is Dr. Jonathan S. Tam's medical license number?
Dr. Tam holds California license A125923, one of the licenses on file in 3 states.
Which states has Dr. Jonathan S. Tam been licensed in?
Dmand AI has state licenses on file for Dr. Tam in California (2013 to 2027), Wisconsin (2010 to 2013) and Illinois (2007 to 2011).
Which hospitals is Dr. Jonathan S. Tam affiliated with?
Dr. Tam practices at Children's Hospital Los Angeles in Los Angeles, California.
What medical group is Dr. Jonathan S. Tam part of?
Dr. Tam is linked to Children's Hospital Los Angeles Medical Group.
Does Dr. Jonathan S. Tam accept Medicare?
Yes. CMS lists Dr. Tam as accepting Medicare assignment.
Is Dr. Jonathan S. Tam board certified?
Yes. Dr. Tam is board certified in allergy & immunology by the American Board of Allergy and Immunology.
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Where did Dr. Jonathan S. Tam go to medical school?
Dr. Tam graduated from Feinberg School of Medicine in 2007.
Has Dr. Jonathan S. Tam received payments from drug or device companies?
CMS Open Payments shows $32,755 in general payments to Dr. Tam from 11 companies from 2018 to 2025. The largest total came from ARS Pharmaceuticals Operations, Inc.
How long has Dr. Jonathan S. Tam been practicing?
Dr. Tam graduated from medical school in 2007, 19 years ago.
Does Dr. Jonathan S. Tam do research?
Dmand AI links 16 publications to Dr. Tam, published from 2012 to 2025. Dr. Tam has worked on 3 clinical trials.
Who does Dr. Jonathan S. Tam publish with?
Dr. Tam's most frequent co-authors are Amal H. Assa'Ad, MD (2 shared papers), Lourdes Delrosso, MD (2 shared papers) and Mitchell H. Grayson, MD (2 shared papers).
What insurance does Dr. Jonathan S. Tam accept?
Dr. Tam is in network with 17 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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