DR. KATHERINE MARIE OTTOLINI M.D.
NPI 1538422613
Pediatrics - Neonatal-Perinatal Medicine in Washington, DC
About Dr. Katherine Marie Ottolini M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KATHERINE MARIE OTTOLINI M.D. (NPI 1538422613) is an individual neonatal-perinatal medicine provider in Washington, District Of Columbia, licensed in District Of Columbia (MD043285) and active in the NPI registry since June 2012. She is enrolled in Medicare PECOS and maintains a secondary practice location in Apo.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 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. Katherine Marie Ottolini M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Katherine Ottolini 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.
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 Katherine Ottolini's NPI number?
The NPI number for Katherine Ottolini is 1538422613. It was assigned to this individual provider in the NPPES registry on June 22, 2012.
Where is Katherine Ottolini located?
Katherine Ottolini practices at 111 Michigan Ave NW, Washington, DC 20010. The listed phone number is (202) 476-5448.
What is Katherine Ottolini's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.
Is Katherine Ottolini enrolled in Medicare?
Yes. Katherine Ottolini is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Katherine Ottolini's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Ottolini 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 Katherine Ottolini'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 Katherine Ottolini was last updated on October 19, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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. Katherine Marie Ottolini, M.D. · NPI 1538422613
Neonatal-Perinatal Medicine physician in Washington, District of Columbia. Individual provider, active in the CMS NPPES registry since June 22, 2012.
## Identity
- **NPI:** 1538422613 (Entity type: Individual)
- **Enumerated:** June 22, 2012
- **Primary specialty:** Pediatrics - Neonatal-Perinatal Medicine · taxonomy 2080N0001X
- **State license:** MD043285 (District of Columbia)
- **Sole proprietor:** No
## Practice location
- **Address:** 111 MICHIGAN AVE NW, Washington, DC 20010-2916
- **Phone:** (202) 476-5448
## 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 19, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1538422613) · Data from the CMS NPPES public registry.