Pediatr Nephrol
Antihypertensive AgentsBlood PressureDrug Therapy, Combination
Dr. Ian Robert Macumber, MD
NPI1891922886
- Medicare services, 2023
- 23
- Publications
- 6
- Industry payments
- $59
- Medical group
- 1
- Insurance carriers
- 2
- Practice address
- 4650 W Sunset Blvd, Los Angeles, CA 90027
- Practice phone
- Call (323) 669-2202
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Childrens Hospital of Los Angeles
Los Angeles, California
Find Dr. Macumber'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. Ian Robert Macumber is a pediatrician in Los Angeles, California
Dr. Macumber practices at Childrens Hospital of Los Angeles in Los Angeles, California.
Dr. Macumber's NPI, 1891922886, was assigned on June 17, 2009. Dr. Macumber graduated from UMass Chan Medical School in 2009. Dr. Macumber's Illinois license number on file is 125-056527.
NPI and contact details
- NPI
- 1891922886NPI Registry (opens in a new tab)
- NPI enumeration date
- June 17, 2009
- NPI status
- Active
- Practice phone
- (323) 669-2202
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Ian Robert Macumber practices at Childrens Hospital of Los Angeles in Los Angeles, California
Dr. Macumber's primary practice is Childrens Hospital of Los Angeles, at 4650 W Sunset Blvd, Los Angeles, CA 90027 in Los Angeles County. The practice phone is (323) 669-2202.
- Childrens Hospital of Los Angeles4650 W Sunset Blvd, Los Angeles, CA 90027 · Los Angeles CountyPhone(323) 669-2202
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ian Robert Macumber is affiliated with 1 site of care and 1 medical group
Dr. Macumber's primary practice is Childrens Hospital of Los Angeles in Los Angeles, California. The medical group on file is Children's Hospital Los Angeles Medical Group.
Childrens Hospital of Los AngelesPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Ian Robert Macumber's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Macumber practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Childrens Hospital of Los Angeles | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Ian Robert Macumber is one of 8,236 pediatricians in California
Pediatrics is Dr. Macumber's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Macumber is board certified in pediatric nephrology by the American Board of Pediatrics. Dmand AI has Dr. Macumber's licenses on file in 5 states: Illinois, California, Connecticut, Massachusetts and Washington.
Specialties and state licenses
- Pediatrics, IllinoisPrimary
- California license
- Connecticut license
- Massachusetts license
- Washington license
Pediatricians near Dr. Macumber
Counts of pediatricians 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. Ian Robert Macumber billed Medicare for 23 services in 2023
CMS data shows 23 Medicare services from Dr. Macumber across 1 procedure code in 2023, all of them office visits. Medicare paid $1,473 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202323
Paid by Medicare$1,473
Procedure codes1
Dr. Macumber's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 232023: 23No change
Dr. Macumber compared with the California median for pediatricians, 2023
- Dr. Macumber
- California median
- Medicare services
- 23vs 7067% below
Medians across 807 pediatricians in California with Dmand AI profiles that report each measure.
Dr. Macumber's most billed Medicare procedure codes, 2023
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. Macumber?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Macumber and other pediatricians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ian Robert Macumber's patients have a median age of 16
Across all payers, Dmand AI patient panel data puts Dr. Macumber's median patient age at 16, with 33% women.
Dr. Macumber's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 16
Patient panel by sex, all payers
- Women33%
- Men33%
Source: Dmand AI Patient Panel Data
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Dr. Ian Robert Macumber has 6 publications on record
Dmand AI links 6 papers to Dr. Macumber, published from 2015 to 2019. 2016 was the busiest year, with 2. The most frequent topics are Blood Pressure, Body Mass Index and Hypertension. Dr. Macumber has published most often in Pediatr Nephrol. Dr. Macumber's most frequent co-authors are Joseph T. Flynn, MD, Susan Margaret Halbach, MD and Coral D. Hanevold, MD.
Papers6
Years published2015 to 2019
Dr. Macumber's papers by year, 2015 to 2019
Topics Dr. Macumber writes about most
- Blood Pressure
- Body Mass Index
- Hypertension
- Washington
Dr. Macumber's most frequent co-authors
- Joseph T. Flynn, MD3 shared papers
- Susan Margaret Halbach, MD1 shared paper
- Coral D. Hanevold, MD1 shared paper
Recent publications by Dr. Macumber
Pediatr Nephrol
Body Mass IndexKidneyObesity
Blood PressureBlood Pressure Monitoring, AmbulatoryBody Mass Index
See who Dr. Macumber researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Macumber works with, so you can find a warm path to the right pediatricians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ian Robert Macumber received $59 in industry payments from 2022 to 2024
CMS Open Payments shows 2 general payments to Dr. Macumber from 2 drug and device companies from 2022 to 2024. Food and beverage make up the largest share, 100% of the total. Medtronic, Inc. paid the most, $30.
General payments to Dr. Macumber by program year, 2022 to 2024
Companies that paid Dr. Macumber the most, 2022 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ian Robert Macumber graduated from UMass Chan Medical School
Dr. Macumber graduated from UMass Chan Medical School in 2009. Dr. Macumber is a member of ASN and American Society of Pediatric Nephrology.
- Medical school
- Board certified in pediatric nephrology
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. Ian Robert Macumber accepts plans from 2 insurance carriers
Dr. Macumber is in network with 2 carriers, including Blue Cross Blue Shield of Michigan and NV State Medicaid. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- NV State Medicaid
Plan types Dr. Macumber accepts, by number of carriers
- HMO1
- Medicaid1
- POS1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Ian Robert Macumber'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 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 |
| 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. Ian Robert Macumber
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. Ian Robert Macumber's NPI number?
Dr. Ian Robert Macumber's NPI number is 1891922886. It was assigned on June 17, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Ian Robert Macumber?
Dr. Ian Robert Macumber is a pediatrician in Los Angeles, California. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Ian Robert Macumber practice?
Dr. Macumber practices at 4650 W Sunset Blvd, Los Angeles, CA 90027. Dr. Macumber's primary practice is Childrens Hospital of Los Angeles in Los Angeles, California.
What is Dr. Ian Robert Macumber's office phone number?
The practice phone on file for Dr. Macumber is (323) 669-2202.
What is Dr. Ian Robert Macumber's medical license number?
Dr. Macumber's Illinois license number on file is 125-056527, one of the licenses on file in 5 states.
Which states has Dr. Ian Robert Macumber been licensed in?
Dmand AI has state licenses on file for Dr. Macumber in Illinois (2009 to 2012), California (2015 to 2025), Connecticut (2017 to 2020), Massachusetts (2017 to 2020) and Washington (2012 to 2015).
What medical group is Dr. Ian Robert Macumber part of?
Dr. Macumber is linked to Children's Hospital Los Angeles Medical Group.
Does Dr. Ian Robert Macumber accept Medicare?
Yes. CMS data shows Dr. Macumber billed Medicare for 23 services in 2023.
Is Dr. Ian Robert Macumber board certified?
Yes. Dr. Macumber is board certified in pediatric nephrology by the American Board of Pediatrics.
What services does Dr. Ian Robert Macumber bill to Medicare?
In 2023, Dr. Macumber's most billed Medicare services were office visit, established patient (99214).
Show 6 more questionsShow fewer questions
Where did Dr. Ian Robert Macumber go to medical school?
Dr. Macumber graduated from UMass Chan Medical School in 2009.
Has Dr. Ian Robert Macumber received payments from drug or device companies?
CMS Open Payments shows $59 in general payments to Dr. Macumber from 2 companies from 2022 to 2024. The largest total came from Medtronic, Inc.
How long has Dr. Ian Robert Macumber been practicing?
Dr. Macumber graduated from medical school in 2009, 17 years ago.
Does Dr. Ian Robert Macumber do research?
Dmand AI links 6 publications to Dr. Macumber, published from 2015 to 2019.
Who does Dr. Ian Robert Macumber publish with?
Dr. Macumber's most frequent co-authors are Joseph T. Flynn, MD (3 shared papers), Susan Margaret Halbach, MD (1 shared paper) and Coral D. Hanevold, MD (1 shared paper).
What insurance does Dr. Ian Robert Macumber accept?
Dr. Macumber is in network with 2 carriers, including Blue Cross Blue Shield of Michigan and NV State Medicaid. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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