Dr. Irene Koolwijk, MD
- Industry payments
- $145
- Affiliated sites
- 1
- Medical groups
- 2
- Insurance carriers
- 10
- State licenses
- 3
- Practice address
- 200 Medical Plz, Los Angeles, CA 90024
- Practice phone
- Call (310) 794-9206
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Peter Morton UCLA Medical Building
Los Angeles, California
Find Dr. Koolwijk'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. Irene Koolwijk is a developmental - behavioral pediatrics physician in Los Angeles, California
Dr. Koolwijk practices at Peter Morton UCLA Medical Building in Los Angeles, California.
Dr. Koolwijk's NPI, 1518164706, was assigned on June 29, 2007. Dr. Koolwijk graduated from Leiden University Faculty of Medicine in 2003. Dr. Koolwijk holds California license A121627.
- NPI
- 1518164706NPI Registry (opens in a new tab)
- NPI enumeration date
- June 29, 2007
- NPI status
- Active
- Practice phone
- (310) 794-9206
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Irene Koolwijk practices at Peter Morton UCLA Medical Building in Los Angeles, California
Dr. Koolwijk's primary practice is Peter Morton UCLA Medical Building, at 200 Medical Plz, Los Angeles, CA 90024 in Los Angeles County. The practice phone is (310) 794-9206.
- Peter Morton UCLA Medical Building200 Medical Plz, Los Angeles, CA 90024 · Los Angeles CountyPhone(310) 794-9206
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Irene Koolwijk is affiliated with 2 sites of care and 2 medical groups
Dr. Koolwijk's primary practice is Peter Morton UCLA Medical Building in Los Angeles, California. The medical group on file is Children's Hospital Los Angeles Medical Group. Dmand AI also links Dr. Koolwijk to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Irene Koolwijk's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Koolwijk practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Peter Morton UCLA Medical Building | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Irene Koolwijk is one of 128 developmental - behavioral pediatrics physicians in California
Developmental - behavioral pediatrics is Dr. Koolwijk's primary specialty in the NPI Registry, under taxonomy code 2080P0006X. Dr. Koolwijk is board certified in developmental-behavioral pediatrics by the American Board of Pediatrics. Dmand AI has Dr. Koolwijk's licenses on file in 3 states: California, Massachusetts and Ohio.
Specialties and state licenses
- Developmental - behavioral pediatrics, CaliforniaPrimary
- Massachusetts license
- Ohio license
Developmental - behavioral pediatrics physicians near Dr. Koolwijk
Counts of developmental - behavioral pediatrics 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. Irene Koolwijk's patients have a median age of 9
Across all payers, Dmand AI patient panel data puts Dr. Koolwijk's median patient age at 9, with 30% women.
Dr. Koolwijk's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 9
Patient panel by sex, all payers
- Women30%
- Men68%
Source: Dmand AI Patient Panel Data
Dr. Irene Koolwijk received $145 in industry payments from 2018 to 2025
CMS Open Payments shows 2 general payments to Dr. Koolwijk from 2 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Shire North American Group Inc paid the most, $122.
General payments to Dr. Koolwijk by program year, 2018 to 2025
Companies that paid Dr. Koolwijk 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. Irene Koolwijk graduated from Leiden University Faculty of Medicine
Dr. Koolwijk graduated from Leiden University Faculty of Medicine in 2003.
- Medical school
- Board certified in developmental-behavioral pediatrics
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. Irene Koolwijk accepts plans from 10 insurance carriers
Dr. Koolwijk is in network with 10 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Aspirus Health Plan
- +2 more carriersWith a free account
Plan types Dr. Koolwijk accepts, by number of carriers
- Medicare7
- PPO7
- POS5
- HMO4
- EPO3
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Irene Koolwijk'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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 |
| 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. Irene Koolwijk
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. Irene Koolwijk's NPI number?
Dr. Irene Koolwijk's NPI number is 1518164706. It was assigned on June 29, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Irene Koolwijk?
Dr. Irene Koolwijk is a developmental - behavioral pediatrics physician in Los Angeles, California. The primary specialty in the NPI Registry is Developmental - Behavioral Pediatrics Physician (taxonomy code 2080P0006X).
Where does Dr. Irene Koolwijk practice?
Dr. Koolwijk practices at 200 Medical Plz, Los Angeles, CA 90024. Dr. Koolwijk's primary practice is Peter Morton UCLA Medical Building in Los Angeles, California. Dmand AI also links Dr. Koolwijk to 1 group practice or clinic and 1 medical group.
What is Dr. Irene Koolwijk's office phone number?
The practice phone on file for Dr. Koolwijk is (310) 794-9206.
What is Dr. Irene Koolwijk's medical license number?
Dr. Koolwijk holds California license A121627, one of the licenses on file in 3 states.
Which states has Dr. Irene Koolwijk been licensed in?
Dmand AI has state licenses on file for Dr. Koolwijk in California (2012 to 2027), Massachusetts (2009 to 2013) and Ohio (2006 to 2009).
What medical group is Dr. Irene Koolwijk part of?
Dr. Koolwijk is linked to Children's Hospital Los Angeles Medical Group. Dmand AI links Dr. Koolwijk to 1 more medical group.
Is Dr. Irene Koolwijk board certified?
Yes. Dr. Koolwijk is board certified in developmental-behavioral pediatrics by the American Board of Pediatrics.
Where did Dr. Irene Koolwijk go to medical school?
Dr. Koolwijk graduated from Leiden University Faculty of Medicine in 2003.
Has Dr. Irene Koolwijk received payments from drug or device companies?
CMS Open Payments shows $145 in general payments to Dr. Koolwijk from 2 companies from 2018 to 2025. The largest total came from Shire North American Group Inc.
How long has Dr. Irene Koolwijk been practicing?
Dr. Koolwijk graduated from medical school in 2003, 23 years ago.
What insurance does Dr. Irene Koolwijk accept?
Dr. Koolwijk is in network with 10 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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