Pediatr Ann
ElectrocardiographyPediatriciansTachycardia, Paroxysmal
Dr. Matthew Rulon Williams, MD
NPI1831423250PAC ID8527373869
- Publications
- 19
- Hospital affiliations
- 1
- Industry payments
- $2,792
- Medical group
- 1
- Insurance carriers
- 10
- Practice address
- 3020 Childrens Way, San Diego, CA 92123
- Practice phone
- Call (858) 576-1700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Williams' 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. Matthew Rulon Williams is a pediatric cardiology physician in San Diego, California
Dr. Williams practices at Rady Children's Hospital San Diego in San Diego, California, part of Rady Children's Health.
Dr. Williams' NPI, 1831423250, was assigned on October 2, 2009. Dr. Williams graduated from University of Colorado Anschutz Medical Campus in 2008. Dr. Williams holds California license A109398.
NPI and contact details
- NPI
- 1831423250NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527373869
- NPI enumeration date
- October 2, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (858) 576-1700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Matthew Rulon Williams practices at Rady Children's Hospital San Diego in San Diego, California
Dr. Williams' primary practice is Rady Children's Hospital San Diego, at 3020 Childrens Way, San Diego, CA 92123 in San Diego County. The practice phone is (858) 576-1700.
- Rady Children's Hospital San Diego3020 Childrens Way, San Diego, CA 92123 · San Diego CountyPhone(858) 576-1700
Source: Dmand AI Affiliation Data
Dr. Matthew Rulon Williams is affiliated with 2 sites of care and 1 medical group
Dr. Williams' primary practice is Rady Children's Hospital San Diego in San Diego, California, part of Rady Children's Health. The medical group on file is Rady Children's Specialists of San Diego. Dmand AI also links Dr. Williams to 1 more therapy and rehab 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. Matthew Rulon Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Rady Children's Hospital San Diego | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every hospital where Dr. Williams practices
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Dr. Matthew Rulon Williams is one of 331 pediatric cardiology physicians in California
Pediatric cardiology is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 2080P0202X. Dr. Williams is board certified in adult congenital heart disease by the American Board of Internal Medicine. Dmand AI has Dr. Williams' licenses on file in 3 states: California, Hawaii and Massachusetts.
Specialties and state licenses
- Pediatric cardiology, CaliforniaPrimary
- Hawaii license
- Massachusetts license
Pediatric cardiology physicians near Dr. Williams
Counts of pediatric cardiology physicians with a Dmand AI profile, by place and practice. Each opens the list.
331pediatric cardiology physicians in California38pediatric cardiology physicians in San Diego31pediatric cardiology physicians at Rady Children's Hospital San Diego
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Matthew Rulon Williams' patients have a median age of 14
Across all payers, Dmand AI patient panel data puts Dr. Williams' median patient age at 14, with 52% women.
Dr. Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 14
Patient panel by sex, all payers
- Women52%
- Men47%
Source: Dmand AI Patient Panel Data
How Dr. Matthew Rulon Williams takes part in Medicare
Dr. Williams 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. Matthew Rulon Williams has 19 publications on record
Dmand AI links 19 papers to Dr. Williams, published from 2014 to 2021. 2018 was the busiest year, with 3. The most frequent topics are Electrocardiography, Heart Conduction System and Heart Defects, Congenital. Dr. Williams has published most often in Ann Thorac Surg. Dr. Williams' most frequent co-authors are James Clifford Perry, MD, Othman A. Aljohani, MD and Alejandro A. Borquez, MD.
Papers19
Years published2014 to 2021
Dr. Williams' papers by year, 2014 to 2021
Topics Dr. Williams writes about most
- Electrocardiography
- Heart Conduction System
- Heart Defects, Congenital
- Tachycardia, Supraventricular
- Abnormalities, Multiple
- Action Potentials
- Arrhythmias, Cardiac
- Cardiac Pacing, Artificial
Dr. Williams' most frequent co-authors
- James Clifford Perry, MD13 shared papers
- Othman A. Aljohani, MD3 shared papers
- Alejandro A. Borquez, MD3 shared papers
Recent publications by Dr. Williams
Circ Arrhythm Electrophysiol
Action PotentialsBody Surface AreaElectrocardiography
JACC Clin Electrophysiol
Anti-Arrhythmia AgentsAtrial FlutterSotalol
See who Dr. Williams researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Williams works with, so you can find a warm path to the right pediatric cardiology physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Matthew Rulon Williams received $2,792 in industry payments from 2016 to 2025
CMS Open Payments shows 30 general payments to Dr. Williams from 6 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 61% of the total. Medtronic Vascular, Inc. paid the most, $1,831.
General payments to Dr. Williams by program year, 2016 to 2025
General payments to Dr. Williams by kind, 2016 to 2025
$2.8Kin total
- Food and beverage$1,70961%
- Travel and lodging$1,08339%
Companies that paid Dr. Williams the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Matthew Rulon Williams graduated from University of Colorado Anschutz Medical Campus
Dr. Williams graduated from University of Colorado Anschutz Medical Campus in 2008. Dr. Williams is a member of ACC, AHA, AMA, HRS, Pediatric and Congenital Electrophysiology Society (PACES) and Society for Cardiovascular Magnetic Resonance.
- Medical school
- Board certified in adult congenital heart disease
- Board certified in pediatric cardiology
- Board certified in pediatrics
- Board certified in certified electrophysiology specialist - pediatric
Source: Dmand AI Professional Profile Data
Dr. Matthew Rulon Williams accepts plans from 10 insurance carriers
Dr. Williams is in network with 10 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Molina
- AK State Medicaid
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- +2 more carriersWith a free account
Plan types Dr. Williams accepts, by number of carriers
- HMO4
- Medicare4
- POS4
- PPO4
- EPO2
- Medicaid2
Source: Dmand AI Insurance Network Data
Sources for Dr. Matthew Rulon Williams'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. Matthew Rulon Williams
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. Matthew Rulon Williams' NPI number?
Dr. Matthew Rulon Williams' NPI number is 1831423250. It was assigned on October 2, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Matthew Rulon Williams?
Dr. Matthew Rulon Williams is a pediatric cardiology physician in San Diego, California. The primary specialty in the NPI Registry is Pediatric Cardiology Physician (taxonomy code 2080P0202X).
Where does Dr. Matthew Rulon Williams practice?
Dr. Williams practices at 3020 Childrens Way, San Diego, CA 92123. Dr. Williams' primary practice is Rady Children's Hospital San Diego in San Diego, California, part of Rady Children's Health. Dmand AI also links Dr. Williams to 1 therapy and rehab clinic.
What is Dr. Matthew Rulon Williams' office phone number?
The practice phone on file for Dr. Williams is (858) 576-1700.
What is Dr. Matthew Rulon Williams' medical license number?
Dr. Williams holds California license A109398, one of the licenses on file in 3 states.
Which states has Dr. Matthew Rulon Williams been licensed in?
Dmand AI has state licenses on file for Dr. Williams in California (2009 to 2027), Hawaii (2018 to 2026) and Massachusetts (2014 to 2015).
Which hospitals is Dr. Matthew Rulon Williams affiliated with?
Dr. Williams practices at Rady Children's Hospital San Diego in San Diego, California.
What medical group is Dr. Matthew Rulon Williams part of?
Dr. Williams is linked to Rady Children's Specialists of San Diego.
Does Dr. Matthew Rulon Williams accept Medicare?
Yes. CMS lists Dr. Williams as accepting Medicare assignment.
Is Dr. Matthew Rulon Williams board certified?
Yes. Dr. Williams is board certified in adult congenital heart disease by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
Where did Dr. Matthew Rulon Williams go to medical school?
Dr. Williams graduated from University of Colorado Anschutz Medical Campus in 2008.
Has Dr. Matthew Rulon Williams received payments from drug or device companies?
CMS Open Payments shows $2,792 in general payments to Dr. Williams from 6 companies from 2016 to 2025. The largest total came from Medtronic Vascular, Inc.
How long has Dr. Matthew Rulon Williams been practicing?
Dr. Williams graduated from medical school in 2008, 18 years ago.
Does Dr. Matthew Rulon Williams do research?
Dmand AI links 19 publications to Dr. Williams, published from 2014 to 2021.
Who does Dr. Matthew Rulon Williams publish with?
Dr. Williams' most frequent co-authors are James Clifford Perry, MD (13 shared papers), Othman A. Aljohani, MD (3 shared papers) and Alejandro A. Borquez, MD (3 shared papers).
What insurance does Dr. Matthew Rulon Williams accept?
Dr. Williams is in network with 10 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 4. Check the plan with the practice before a visit.
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