Dr. Ruth Ellen Hollo, MD
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 111 Michigan Ave, NW, Washington, DC 20010
- Practice phone
- Call (202) 476-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hollo'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. Ruth Ellen Hollo is a pediatrician in Washington, District of Columbia
Dr. Hollo practices at Children's National Hospital in Washington, District of Columbia, part of Children's National Hospital.
Dr. Hollo's NPI, 1184604050, was assigned on January 18, 2006. Dr. Hollo holds District of Columbia license MD036812.
- NPI
- 1184604050NPI Registry (opens in a new tab)
- NPI enumeration date
- January 18, 2006
- NPI status
- Active
- Practice phone
- (202) 476-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Ruth Ellen Hollo practices at Children's National Hospital in Washington, District of Columbia
Dr. Hollo's primary practice is Children's National Hospital, at 111 Michigan Ave, NW, Washington, DC 20010 in The District County. The practice phone is (202) 476-5000.
- Children's National Hospital111 Michigan Ave, NW, Washington, DC 20010 · The District CountyPhone(202) 476-5000
Source: Dmand AI Affiliation Data
Dr. Ruth Ellen Hollo is affiliated with 2 sites of care and 1 medical group
Dr. Hollo's primary practice is Children's National Hospital in Washington, District of Columbia, part of Children's National Hospital. The medical group on file is Children's National Hospital. Dmand AI also links Dr. Hollo to 1 more dialysis center, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ruth Ellen Hollo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hollo practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Children's National Hospital | Available with a free account |
| +1 more affiliated site | 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 National Hospital and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Ruth Ellen Hollo is one of 545 pediatricians in District of Columbia
Pediatrics is Dr. Hollo's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Hollo is licensed in District of Columbia.
Specialties and state licenses
- Pediatrics, District of ColumbiaPrimary
Pediatricians near Dr. Hollo
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. Ruth Ellen Hollo's patients have a median age of 9
Across all payers, Dmand AI patient panel data puts Dr. Hollo's median patient age at 9, with 55% women.
Dr. Hollo'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
- Women55%
- Men45%
Source: Dmand AI Patient Panel Data
Sources for Dr. Ruth Ellen Hollo'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 |
| 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. Ruth Ellen Hollo
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. Ruth Ellen Hollo's NPI number?
Dr. Ruth Ellen Hollo's NPI number is 1184604050. It was assigned on January 18, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ruth Ellen Hollo?
Dr. Ruth Ellen Hollo is a pediatrician in Washington, District of Columbia. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Ruth Ellen Hollo practice?
Dr. Hollo practices at 111 Michigan Ave, NW, Washington, DC 20010. Dr. Hollo's primary practice is Children's National Hospital in Washington, District of Columbia, part of Children's National Hospital. Dmand AI also links Dr. Hollo to 1 dialysis center.
What is Dr. Ruth Ellen Hollo's office phone number?
The practice phone on file for Dr. Hollo is (202) 476-5000.
What is Dr. Ruth Ellen Hollo's medical license number?
Dr. Hollo holds District of Columbia license MD036812.
Which hospitals is Dr. Ruth Ellen Hollo affiliated with?
Dr. Hollo practices at Children's National Hospital in Washington, District of Columbia.
What medical group is Dr. Ruth Ellen Hollo part of?
Dr. Hollo is linked to Children's National Hospital.
How long has Dr. Ruth Ellen Hollo been practicing?
Dr. Hollo's NPI was assigned in 2006.
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