Dr. Keith Zachary Hazleton, MD, PhD
- Publications
- 4
- Hospital affiliations
- 1
- Industry payments
- $79
- Medical group
- 1
- Insurance carriers
- 12
- 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. Hazleton'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. Keith Zachary Hazleton is a pediatric gastroenterology physician in Los Angeles, California
Dr. Hazleton practices at Children's Hospital Los Angeles in Los Angeles, California, part of Children's Hospital Los Angeles.
Dr. Hazleton's NPI, 1770825275, was assigned on March 22, 2013. Dr. Hazleton graduated from Albert Einstein College of Medicine in 2013. Dr. Hazleton's California license number on file is C190821.
- NPI
- 1770825275NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5092019174
- NPI enumeration date
- March 22, 2013
- 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
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Keith Zachary Hazleton practices at Children's Hospital Los Angeles in Los Angeles, California
Dr. Hazleton'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. Keith Zachary Hazleton is affiliated with 1 site of care and 1 medical group
Dr. Hazleton'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. Keith Zachary Hazleton's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hazleton 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. Keith Zachary Hazleton is one of 251 pediatric gastroenterology physicians in California
Pediatric gastroenterology is Dr. Hazleton's primary specialty in the NPI Registry, under taxonomy code 2080P0206X. Dr. Hazleton is board certified in pediatric gastroenterology by the American Board of Pediatrics. Dmand AI has Dr. Hazleton's licenses on file in 3 states: California, Arizona and Colorado.
Specialties and state licenses
- Pediatric gastroenterology, CaliforniaPrimary
- Arizona license
- Pediatric transplant hepatology, Colorado
Pediatric gastroenterology physicians near Dr. Hazleton
Counts of pediatric gastroenterology 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. Keith Zachary Hazleton's patients have a median age of 13
Across all payers, Dmand AI patient panel data puts Dr. Hazleton's median patient age at 13, with 43% women.
Dr. Hazleton's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 13
Patient panel by sex, all payers
- Women43%
- Men57%
Source: Dmand AI Patient Panel Data
How Dr. Keith Zachary Hazleton takes part in Medicare
Dr. Hazleton 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)
Dr. Keith Zachary Hazleton has 4 publications on record
Dmand AI links 4 papers to Dr. Hazleton, published from 2011 to 2025. Dr. Hazleton's most frequent co-author is Maribeth Ruth Nicholson, MD.
Dr. Hazleton's papers by year, 2011 to 2025
Dr. Hazleton's most frequent co-authors
Recent publications by Dr. Hazleton
See who Dr. Hazleton researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hazleton works with, so you can find a warm path to the right pediatric gastroenterology physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Keith Zachary Hazleton received $79 in industry payments from 2022 to 2025
CMS Open Payments shows 9 general payments to Dr. Hazleton from 3 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 71% of the total. Mirum Pharmaceuticals, Inc. paid the most, $33.
General payments to Dr. Hazleton by program year, 2022 to 2025
General payments to Dr. Hazleton by kind, 2022 to 2025
- Food and beverage$5671%
- Education$2329%
Companies that paid Dr. Hazleton the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Keith Zachary Hazleton graduated from Albert Einstein College of Medicine
Dr. Hazleton graduated from Albert Einstein College of Medicine in 2013. Dr. Hazleton is a member of American Association for the Study of Liver Disease and AGA.
- Medical school
- Board certified in pediatric gastroenterology
- Board certified in pediatrics
- Board certified in pediatric transplant hepatology
Source: Dmand AI Professional Profile Data
Dr. Keith Zachary Hazleton accepts plans from 12 insurance carriers
Dr. Hazleton is in network with 12 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- Cigna
- HCSC
- Molina
- Regence Health Plans
- +4 more carriersWith a free account
Plan types Dr. Hazleton accepts, by number of carriers
- Medicare9
- HMO6
- PPO6
- POS4
- EPO3
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Keith Zachary Hazleton'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 |
| 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 |
| 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. Keith Zachary Hazleton
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. Keith Zachary Hazleton's NPI number?
Dr. Keith Zachary Hazleton's NPI number is 1770825275. It was assigned on March 22, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Keith Zachary Hazleton?
Dr. Keith Zachary Hazleton is a pediatric gastroenterology physician in Los Angeles, California. The primary specialty in the NPI Registry is Pediatric Gastroenterology Physician (taxonomy code 2080P0206X).
Where does Dr. Keith Zachary Hazleton practice?
Dr. Hazleton practices at 4650 Sunset Blvd, MS 108, Los Angeles, CA 90027. Dr. Hazleton's primary practice is Children's Hospital Los Angeles in Los Angeles, California, part of Children's Hospital Los Angeles.
What is Dr. Keith Zachary Hazleton's office phone number?
The practice phone on file for Dr. Hazleton is (323) 669-2164.
What is Dr. Keith Zachary Hazleton's medical license number?
Dr. Hazleton's California license number on file is C190821, one of the licenses on file in 3 states.
Which states has Dr. Keith Zachary Hazleton been licensed in?
Dmand AI has state licenses on file for Dr. Hazleton in California (2023 to 2025), Arizona (2020 to 2027) and Colorado (2015 to 2021).
Which hospitals is Dr. Keith Zachary Hazleton affiliated with?
Dr. Hazleton practices at Children's Hospital Los Angeles in Los Angeles, California.
What medical group is Dr. Keith Zachary Hazleton part of?
Dr. Hazleton is linked to Children's Hospital Los Angeles Medical Group.
Does Dr. Keith Zachary Hazleton accept Medicare?
Yes. CMS lists Dr. Hazleton as accepting Medicare assignment.
Is Dr. Keith Zachary Hazleton board certified?
Yes. Dr. Hazleton is board certified in pediatric gastroenterology by the American Board of Pediatrics.
Show 6 more questionsShow fewer questions
Where did Dr. Keith Zachary Hazleton go to medical school?
Dr. Hazleton graduated from Albert Einstein College of Medicine in 2013.
Has Dr. Keith Zachary Hazleton received payments from drug or device companies?
CMS Open Payments shows $79 in general payments to Dr. Hazleton from 3 companies from 2022 to 2025. The largest total came from Mirum Pharmaceuticals, Inc.
How long has Dr. Keith Zachary Hazleton been practicing?
Dr. Hazleton graduated from medical school in 2013, 13 years ago.
Does Dr. Keith Zachary Hazleton do research?
Dmand AI links 4 publications to Dr. Hazleton, published from 2011 to 2025.
Who does Dr. Keith Zachary Hazleton publish with?
Dr. Hazleton's most frequent co-authors are Maribeth Ruth Nicholson, MD (1 shared paper).
What insurance does Dr. Keith Zachary Hazleton accept?
Dr. Hazleton is in network with 12 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
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