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DR. ALEXANDRA NICOLE THEISEN MD, MS
NPI 1225486160
Pediatrics - Pediatric Rheumatology in Indianapolis, IN

Active since June 01, 2016PECOS EnrolledAccepts Medicare Assignment
81.57/100
CMS Quality Rating
705 RILEY HOSPITAL DR, INDIANAPOLIS, IN 46202(317) 274-2172(317) 278-3031 Get Directions Write a Review

NPPES record last updated: March 11, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 11, 2026, Jul 8, 2025, Jul 2, 2024 and 2 more (5 updates tracked since 2022).

About Dr. Alexandra Nicole Theisen Md, Ms NPPES

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

DR. ALEXANDRA NICOLE THEISEN MD, MS (NPI 1225486160) is an individual pediatric rheumatology provider in Indianapolis, Indiana, licensed in Indiana (01082379A) and active in the NPI registry since June 2016. She is enrolled in Medicare PECOS, is affiliated with Indiana University Health, and is a graduate of Southern Illinois University School Of Medicine (2016).

NPPES Registry Identity

NPI1225486160
Entity TypeIndividualFemale
Primary Taxonomy2080P0216X
Provider Legal NameDR. ALEXANDRA NICOLE THEISENCredential: MD, MS
Location Address705 RILEY HOSPITAL DRIndianapolis, IN 46202-5109
Mailing AddressPo Box 719094Chicago, IL 60677-9318 · (317) 777-6435 · Fax (317) 777-6644
Phone(317) 274-2172
Fax(317) 278-3031
Sole ProprietorNo
Medical School CMSSouthern Illinois University School Of MedicineGraduated 2016
Enumeration DateJune 1, 2016
Last NPPES UpdateMarch 11, 20265 updates tracked since enumeration
NPPES CertifiedMarch 11, 2026
✔ NPI 1225486160 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0216X
License✔ Licensed in IN · 01082379A
Definition
A pediatrician who treats diseases of joints, muscle, bones and tendons. A pediatric rheumatologist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
705 RILEY HOSPITAL DR, Indianapolis, IN 46202
Open in Google Maps ↗

Other Identifiers 1

Medicaid300115558IN

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Arkansas Blue Cross and Blue Shield, CareSource, Health Advantage and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Alexandra Nicole Theisen Md, Ms is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5991096075
PECOS Enrollment IDI20251215003345
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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Indiana University Health

Acute Care Hospitals · Indianapolis, IN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150056
Location1701 N Senate BlvdIndianapolis, IN 46202 · Marion County
Emergency services Birthing friendly

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

81.57/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality76.09
Promoting Interoperability100
Improvement Activities40
Cost54.28

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 Alexandra Theisen's NPI number?

The NPI number for Alexandra Theisen is 1225486160. It was assigned to this individual provider in the NPPES registry on June 1, 2016.

Where is Alexandra Theisen located?

Alexandra Theisen practices at 705 Riley Hospital Dr, Indianapolis, IN 46202. The listed phone number is (317) 274-2172.

What is Alexandra Theisen's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Rheumatology, with taxonomy code 2080P0216X.

Is Alexandra Theisen enrolled in Medicare?

Yes. Alexandra Theisen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Alexandra Theisen accept?

Health plans from Arkansas Blue Cross and Blue Shield, CareSource, Health Advantage, Octave and UnitedHealthcare list Alexandra Theisen 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.

Is Alexandra Theisen affiliated with any hospitals?

According to CMS data, Alexandra Theisen is affiliated with Indiana University Health.

When was this NPI record last updated?

The NPPES record for Alexandra Theisen was last updated on March 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.