DR. RUTH ELLEN HOLLO MD
NPI 1184604050
Pediatrics in Washington, DC
About Dr. Ruth Ellen Hollo Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RUTH ELLEN HOLLO MD (NPI 1184604050) is an individual pediatrics provider in Washington, District Of Columbia, licensed in District Of Columbia (MD036812) and active in the NPI registry since January 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Ruth Ellen Hollo Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Ruth Hollo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Washington, DC 20010
- Reassigned Medicare billing, District of Columbia enrollment
- 1,417 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20010 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WASHINGTON, DC 20010
WASHINGTON, DC 20010
WASHINGTON, DC 20010
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Ruth Hollo's NPI number?
The NPI number for Ruth Hollo is 1184604050. It was assigned to this individual provider in the NPPES registry on January 18, 2006. The provider is also known as Dr. Ruth Ellen Scrano MD.
Where is Ruth Hollo located?
Ruth Hollo practices at 111 Michigan Ave NW, Washington, DC 20010. The listed phone number is (202) 476-6878.
What is Ruth Hollo's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Ruth Hollo enrolled in Medicare?
Yes. Ruth Hollo is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Ruth Hollo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ruth Hollo reassigns Medicare benefits to Children's Hospital (Washington, DC). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ruth Hollo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Ruth Hollo was last updated on October 22, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Ruth Ellen Hollo, MD · NPI 1184604050
Pediatrics physician in Washington, District of Columbia. Individual provider, active in the CMS NPPES registry since January 18, 2006.
## Identity
- **NPI:** 1184604050 (Entity type: Individual)
- **Enumerated:** January 18, 2006
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** MD036812 (District of Columbia)
- **Sole proprietor:** No
## Practice location
- **Address:** 111 MICHIGAN AVE NW, Washington, DC 20010-2978
- **Phone:** (202) 476-6878
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Children's Hospital (NPI 1780800128, Washington, DC), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 22, 2007
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Source: [NPI Profile](https://npiprofile.com/npi/1184604050) · Data from the CMS NPPES public registry.