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LAUREN PEREIRA DO
NPI 1417417544
Pediatrics in Saint John, IN

Active since March 24, 2019PECOS Enrolled
9660 WICKER AVE, 2ND FL, SAINT JOHN, IN 46373(219) 226-2380(219) 226-2381 Get Directions Write a Review

NPPES record last updated: March 15, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 15, 2026, May 10, 2022, Jun 7, 2019 and 1 more (4 updates tracked since 2019).

About Lauren Pereira Do NPPES

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

LAUREN PEREIRA DO (NPI 1417417544) is an individual pediatrics provider in Saint John, Indiana, licensed in Indiana (02006718A) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1417417544
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameLAUREN PEREIRACredential: DO
Location Address9660 WICKER AVE, 2ND FLSaint John, IN 46373-9487
Mailing Address8558 BroadwayMerrillville, IN 46410-7032 · (219) 392-7084 · Fax (219) 703-6854
Phone(219) 226-2380
Fax(219) 226-2381
Sole ProprietorNo
Enumeration DateMarch 24, 2019
Last NPPES UpdateMarch 15, 20264 updates tracked since enumeration
NPPES CertifiedMarch 15, 2026
✔ NPI 1417417544 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in IN · 02006718A
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
9660 WICKER AVE, Saint John, IN 46373
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Other Names 1

Former Name (1)Lauren M Thiesfeld Do

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.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Lauren Pereira 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 46373 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$82.04 typical visit price
range $53.07 – $161.76
Typical copayment $20.51 (range $13.26 – $40.44)
Most-billed visit code 99203
Established Patient
$94.22 typical visit price
range $16.93 – $132.22
Typical copayment $23.55 (range $4.23 – $33.05)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

MARGARITA VEGA-SUAREZ FNP-C
Nurse Practitioner (Family)
9660 WICKER AVE, 2ND FL
SAINT JOHN, IN 46373
Lake County (219) 703-2417
DR. TASHA M HARRIS MD
Emergency Medicine
9660 WICKER AVE
ST. JOHN, IN 46373
Lake County (219) 365-7620
SAADUDDIN MOHAMMED SIDDIQUI MD
Emergency Medicine
9660 WICKER AVE
SAINT JOHN, IN 46373
Lake County (219) 365-1177
MUNSTER ORTHOPAEDIC INSTITUTE, LLC
Orthopaedic Surgery
9660 WICKER AVE
SAINT JOHN, IN 46373
Lake County (219) 677-4940
MS. ALICIA FOWLER NP-C
Nurse Practitioner (Family)
9660 WICKER AVE
SAINT JOHN, IN 46373
Lake County (219) 365-1177
MUNSTER ORTHOPAEDIC INSTITUTE, LLC
Durable Medical Equipment & Medical Supplies
9660 WICKER AVE
SAINT JOHN, IN 46373
Lake County (219) 836-2225
ALONZO KEVIN MORRISSEY MD
Family Medicine
9660 WICKER AVE
ST JOHN, IN 46373
Lake County (219) 365-1166
MARNE J JUESTEL FNP
Nurse Practitioner
9660 WICKER AVE
SAINT JOHN, IN 46373
Lake County (219) 365-1177

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 Lauren Pereira's NPI number?

The NPI number for Lauren Pereira is 1417417544. It was assigned to this individual provider in the NPPES registry on March 24, 2019. The provider is also known as Lauren M Thiesfeld Do.

Where is Lauren Pereira located?

Lauren Pereira practices at 9660 Wicker Ave 2nd Fl, Saint John, IN 46373. The listed phone number is (219) 226-2380.

What is Lauren Pereira's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Lauren Pereira enrolled in Medicare?

Yes. Lauren Pereira is registered in the Medicare PECOS enrollment system.

What insurance does Lauren Pereira accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan and Ambetter from Meridian list Lauren Pereira 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 Lauren Pereira was last updated on March 15, 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.