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LYDIA JOY FISCHER MD
NPI 1225563034
Psychiatry & Neurology - Child & Adolescent Psychiatry in Indianapolis, IN

Active since April 30, 2017PECOS EnrolledAccepts Medicare Assignment
705 RILEY HOSPITAL DR, ROOM 5867, INDIANAPOLIS, IN 46202(317) 944-8162 Get Directions Write a Review

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

Record update history: Apr 2, 2026, Oct 24, 2023, Aug 8, 2022 and 1 more (4 updates tracked since 2017).

About Lydia Joy Fischer Md NPPES

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

LYDIA JOY FISCHER MD (NPI 1225563034) is an individual child & adolescent psychiatry provider in Indianapolis, Indiana, licensed in Indiana (01086659A) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS, maintains a secondary practice location in Bloomington, and is a graduate of Indiana University School Of Medicine (2017).

NPPES Registry Identity

NPI1225563034
Entity TypeIndividualFemale
Primary Taxonomy2084P0804X
Provider Legal NameLYDIA JOY FISCHERCredential: MD
Location Address705 RILEY HOSPITAL DR, ROOM 5867Indianapolis, IN 46202-5109
Mailing Address250 N Shadeland AveIndianapolis, IN 46219-4959
Phone(317) 944-8162
Sole ProprietorNo
Medical School CMSIndiana University School Of MedicineGraduated 2017
Enumeration DateApril 30, 2017
Last NPPES UpdateApril 2, 20264 updates tracked since enumeration
NPPES CertifiedApril 2, 2026
✔ NPI 1225563034 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPsychiatry & Neurology · Child & Adolescent PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0804X
License✔ Licensed in IN · 01086659A
Definition
Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.
Also ListedPediatricsTaxonomy 208000000X · License 01086659A (IN)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
705 RILEY HOSPITAL DR, Indianapolis, IN 46202
Open in Google Maps ↗

Secondary Practice Location 1

Location 12651 E Discovery PkwyBloomington, IN 47408-9059 · Phone (812) 353-5630 · Fax (812) 353-5441

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Lydia Joy Fischer Md 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 ID9234406778
PECOS Enrollment IDI20220627003549
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

2

Medicare enrollment records show Lydia Fischer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Indiana University Health Care Associates, Inc
0.9 mi
General Practice
340 W TENTH ST
Indianapolis, IN 46202
  • Reassigned Medicare billing, Indiana enrollment
  • 1,781 clinicians in this Medicare group
NPI 1902032832 (317) 278-3505
Iu Health Medical Group, LLC
1.3 mi
General Practice
1701 N SENATE BLVD
Indianapolis, IN 46202
  • Reassigned Medicare billing, Indiana enrollment
  • 5,212 clinicians in this Medicare group
NPI 1326893777 (317) 962-2000

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 Lydia Fischer's NPI number?

The NPI number for Lydia Fischer is 1225563034. It was assigned to this individual provider in the NPPES registry on April 30, 2017.

Where is Lydia Fischer located?

Lydia Fischer practices at 705 Riley Hospital Dr Room 5867, Indianapolis, IN 46202. The listed phone number is (317) 944-8162.

What is Lydia Fischer's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.

Is Lydia Fischer enrolled in Medicare?

Yes. Lydia Fischer 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.

Which organizations bill Medicare for Lydia Fischer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lydia Fischer reassigns Medicare benefits to 2 organizations: Indiana University Health Care Associates, Inc (Indianapolis, IN) and Iu Health Medical Group, LLC (Indianapolis, IN). 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 Lydia Fischer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Lydia Fischer accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource and 2 other insurers list Lydia Fischer 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 Lydia Fischer was last updated on April 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.