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DR. LEENA LATA STEMLER MD
NPI 1063686335
Pediatrics - Sleep Medicine in Saint Louis, MO

Active since April 17, 2008PECOS Enrolled
1 CHILDRENS PL, DIV PED ALLERGY/IMMUNO/PULMO, SAINT LOUIS, MO 63110(314) 454-2694(844) 231-8913 Get Directions Write a Review

NPPES record last updated: February 4, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Feb 4, 2026, Jan 9, 2018, Nov 14, 2016 and 1 more (4 updates tracked since 2015).

About Dr. Leena Lata Stemler Md NPPES

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

DR. LEENA LATA STEMLER MD (NPI 1063686335) is an individual sleep medicine provider in Saint Louis, Missouri, licensed in Missouri (2014034704) and active in the NPI registry since April 2008. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1063686335
Entity TypeIndividualFemale
Primary Taxonomy2080S0012X
Provider Legal NameDR. LEENA LATA STEMLERCredential: MD
Location Address1 CHILDRENS PL, DIV PED ALLERGY/IMMUNO/PULMOSaint Louis, MO 63110-1002
Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 454-2694 · Fax (844) 231-8913
Phone(314) 454-2694
Fax(844) 231-8913
Sole ProprietorNo
Enumeration DateApril 17, 2008
Last NPPES UpdateFebruary 4, 20264 updates tracked since enumeration
✔ NPI 1063686335 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Sleep MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080S0012X
License✔ Licensed in MO · 2014034704
Definition
A Pediatrician who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.
Also ListedPediatrics · Pediatric PulmonologyTaxonomy 2080P0214X · License 2014034704 (MO)
1 CHILDRENS PL, Saint Louis, MO 63110
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Other Identifiers 1

Medicaid204203905MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cox HealthPlans, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Leena Lata Stemler Md 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 Leena Stemler reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Washington University
0.1 mi
Multi-Specialty
1 CHILDRENS PL
Saint Louis, MO 63110
  • Reassigned Medicare billing, Missouri enrollment
  • 628 clinicians in this Medicare group
NPI 1194765685 (314) 286-1264
Mercy Hospitals East Communities
10 mi
General Acute Care Hospital
615 S NEW BALLAS RD
Saint Louis, MO 63141
  • Reassigned Medicare billing, Missouri enrollment
  • 241 clinicians in this Medicare group
NPI 1427098169 (314) 251-6000
Mercy Hospital South
11 mi
General Acute Care Hospital
10010 KENNERLY RD
Saint Louis, MO 63128
  • Reassigned Medicare billing, Missouri enrollment
  • 186 clinicians in this Medicare group
NPI 1568481984 (314) 525-1000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63110 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
$128.28 typical visit price
range $55.65 – $169.38
Typical copayment $32.07 (range $13.91 – $42.34)
Most-billed visit code 99204
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
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.

ARIE BAKER MSW, LCSW
Social Worker (Clinical)
1 CHILDRENS PL, CAMPUS BOX 8116
SAINT LOUIS, MO 63110
St. Louis City (314) 747-6169
SUSAN CHEUNG WALSH AUD
Audiologist-Hearing Aid Fitter
1 CHILDRENS PL
SAINT LOUIS, MO 63110
St. Louis City (314) 454-4649
MS. JENNIFER MARIE JACOBI PNP
Nurse Practitioner (Pediatrics)
1 CHILDRENS PL, DEPT NEUROLOGICAL SURGERY, STE 4E
SAINT LOUIS, MO 63110
St. Louis City (314) 362-3577
MS. EMILY LINCOLN RN, NNP-BC
Nurse Practitioner (Neonatal, Critical Care)
1 CHILDRENS PL
SAINT LOUIS, MO 63110
St. Louis City (314) 454-6000
MS. MARISSA ROSE PEREZ-MAGNELLI PNP
Nurse Practitioner (Pediatrics)
1 CHILDRENS PL, DEPT NEUROLOGY, STE 2130
SAINT LOUIS, MO 63110
St. Louis City (314) 454-6120
MRS. BRIANNA LYNN RICHTER NNP-BC
Nurse Practitioner (Neonatal)
1 CHILDRENS PL
SAINT LOUIS, MO 63110
St. Louis City (314) 454-6000
DR. WILLIAM L RIVES MD
Hospitalist
1 CHILDRENS PL, DIV PED HOSPITALIST MED
SAINT LOUIS, MO 63110
St. Louis City (314) 454-2076
DR. PETER M KILBRIDGE MD
Pediatrics
1 CHILDRENS PL, SUITE C
SAINT LOUIS, MO 63110
St. Louis City (314) 454-2479

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 Leena Stemler's NPI number?

The NPI number for Leena Stemler is 1063686335. It was assigned to this individual provider in the NPPES registry on April 17, 2008.

Where is Leena Stemler located?

Leena Stemler practices at 1 Childrens Pl Div Ped Allergy/Immuno/Pulmo, Saint Louis, MO 63110. The listed phone number is (314) 454-2694.

What is Leena Stemler's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Sleep Medicine, with taxonomy code 2080S0012X.

Is Leena Stemler enrolled in Medicare?

Yes. Leena Stemler is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Leena Stemler's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Leena Stemler reassigns Medicare benefits to 3 organizations: Washington University (Saint Louis, MO), Mercy Hospitals East Communities (Saint Louis, MO) and Mercy Hospital South (Saint Louis, MO). 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 Leena Stemler's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Leena Stemler accept?

Health plans from Cox HealthPlans and UnitedHealthcare list Leena Stemler 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 Leena Stemler was last updated on February 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.