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NICHOLAS THEODORE SEVERYN DO
NPI 1366897605
Pediatrics - Neonatal-Perinatal Medicine in Indianapolis, IN

Active since April 24, 2016PECOS Enrolled
705 RILEY HOSPITAL DR, INDIANAPOLIS, IN 46202(317) 274-4779(317) 948-9806 Get Directions Write a Review

NPPES record last updated: July 2, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 14, 2026, Jun 8, 2022 (2 updates tracked since 2022).

About Nicholas Theodore Severyn Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NICHOLAS THEODORE SEVERYN DO (NPI 1366897605) is an individual neonatal-perinatal medicine provider in Indianapolis, Indiana, licensed in Indiana (02005617A) and active in the NPI registry since April 2016. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1366897605
Entity TypeIndividualMale
Primary Taxonomy2080N0001X
Provider Legal NameNICHOLAS THEODORE SEVERYNCredential: DO
Location Address705 RILEY HOSPITAL DRIndianapolis, IN 46202-5109
Mailing AddressPo Box 719094Chicago, IL 60677-9318 · (317) 777-6435 · Fax (317) 777-6644
Phone(317) 274-4779
Fax(317) 948-9806
Sole ProprietorNo
Enumeration DateApril 24, 2016
Last NPPES UpdateJuly 2, 20262 updates tracked since enumeration
NPPES CertifiedJuly 2, 2026
✔ NPI 1366897605 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
License✔ Licensed in IN · 02005617A
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
705 RILEY HOSPITAL DR, Indianapolis, IN 46202
Open in Google Maps ↗

Other Identifiers 1

Medicaid300130717IN

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Nicholas Theodore Severyn Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Nicholas Severyn reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Baptist Health Medical Group Inc
130 mi
Internal Medicine
1001 LEAWOOD DR
Frankfort, KY 40601
  • Reassigned Medicare billing, Kentucky enrollment
  • 999 clinicians in this Medicare group
NPI 1629740774 (502) 223-0231
University Of Kentucky
150 mi
General Practice
2195 HARRODSBURG RD STE 175
Lexington, KY 40504
  • Reassigned Medicare billing, Kentucky enrollment
  • 1,761 clinicians in this Medicare group
NPI 1194852582 (859) 257-9272
Kentucky Medical Services Foundation, Inc
154 mi
Internal Medicine
2333 ALUMNI PARK PLZ, SUITE 200
Lexington, KY 40517
  • Reassigned Medicare billing, Kentucky enrollment
  • 1,502 clinicians in this Medicare group
NPI 1326091448 (859) 257-7910

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.

MOHANNAD MOALLEM M.D.
Pediatrics (Neonatal-Perinatal Medicine)
705 RILEY HOSPITAL DR
INDIANAPOLIS, IN 46202
Marion County (317) 274-4779
TIA IMHOFF MCGEE FNP-BC
Nurse Practitioner (Family)
705 RILEY HOSPITAL DR
INDIANAPOLIS, IN 46202
Marion County (317) 312-2204
JOSHUA WAYNE GOLLUB
Pediatrics (Neonatal-Perinatal Medicine)
705 RILEY HOSPITAL DR
INDIANAPOLIS, IN 46202
Marion County (317) 274-4779
NOAH MENAKER DDS
Dentist (Pediatric Dentistry)
705 RILEY HOSPITAL DR
INDIANAPOLIS, IN 46202
Marion County (317) 944-3865
DR. ANAS NADER ATA ALJABARI MBBS
Student in an Organized Health Care Education/Training Program
705 RILEY HOSPITAL DR
INDIANAPOLIS, IN 46202
Marion County (856) 398-9630
TALIA RAE BOOHER MB BCH BAO
Student in an Organized Health Care Education/Training Program
705 RILEY HOSPITAL DR
INDIANAPOLIS, IN 46202
Marion County (317) 944-7571
JANET R SHAVER NP
Nurse Practitioner (Pediatrics)
705 RILEY HOSPITAL DR, RI 1601
INDIANAPOLIS, IN 46202
Marion County (317) 944-4842
UNIVERSITY PEDIATRIC DENTISTRY ASSOCIATES
Dentist (Pediatric Dentistry)
705 RILEY HOSPITAL DR, ROC - SUITE 4205
INDIANAPOLIS, IN 46202
Marion County (317) 944-9604

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 Nicholas Severyn's NPI number?

The NPI number for Nicholas Severyn is 1366897605. It was assigned to this individual provider in the NPPES registry on April 24, 2016.

Where is Nicholas Severyn located?

Nicholas Severyn practices at 705 Riley Hospital Dr, Indianapolis, IN 46202. The listed phone number is (317) 274-4779.

What is Nicholas Severyn's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is Nicholas Severyn enrolled in Medicare?

Yes. Nicholas Severyn is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Nicholas Severyn's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nicholas Severyn reassigns Medicare benefits to 3 organizations: Baptist Health Medical Group Inc (Frankfort, KY), University Of Kentucky (Lexington, KY) and Kentucky Medical Services Foundation, Inc (Lexington, KY). Each 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 Nicholas Severyn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Nicholas Severyn accept?

Health plans from CareSource list Nicholas Severyn as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Nicholas Severyn was last updated on July 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.