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DR. ALEXANDER S PLATTNER MD
NPI 1801382700
Pediatrics - Pediatric Infectious Diseases in Saint Louis, MO

Active since July 03, 2018PECOS EnrolledAccepts Medicare Assignment
1 CHILDRENS PL, DIV PED INFECTIOUS DISEASE, SAINT LOUIS, MO 63110(314) 454-6050(855) 887-7850 Get Directions Write a Review

NPPES record last updated: August 21, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Apr 9, 2021, Jul 3, 2018 (2 updates tracked since 2018).

About Dr. Alexander S Plattner Md NPPES

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

DR. ALEXANDER S PLATTNER MD (NPI 1801382700) is an individual pediatric infectious diseases provider in Saint Louis, Missouri, licensed in Missouri (2019029592) and active in the NPI registry since July 2018. He is enrolled in Medicare PECOS, maintains a secondary practice location in Springfield, and is a graduate of University Of North Carolina At Chapel Hill School Of Medicine (2018).

NPPES Registry Identity

NPI1801382700
Entity TypeIndividualMale
Primary Taxonomy2080P0208X
Provider Legal NameDR. ALEXANDER S PLATTNERCredential: MD
Location Address1 CHILDRENS PL, DIV PED INFECTIOUS DISEASESaint Louis, MO 63110-1002
Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 454-6050 · Fax (855) 887-7850
Phone(314) 454-6050
Fax(855) 887-7850
Sole ProprietorNo
Medical School CMSUniversity Of North Carolina At Chapel Hill School Of MedicineGraduated 2018
Enumeration DateJuly 3, 2018
Last NPPES UpdateAugust 21, 20252 updates tracked since enumeration
NPPES CertifiedAugust 21, 2025
✔ NPI 1801382700 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric Infectious DiseasesAllopathic & Osteopathic Physicians
Taxonomy Code2080P0208X
License✔ Licensed in MO · 2019029592
Definition
A pediatrician trained to care for children in the diagnosis, treatment and prevention of infectious diseases. This specialist can apply specific knowledge to affect a better outcome for pediatric infections with complicated courses, underlying diseases that predispose to unusual or severe infections, unclear diagnoses, uncommon diseases and complex or investigational treatments.
Also ListedPediatricsTaxonomy 208000000X · License 2019029592 (MO)
1 CHILDRENS PL, Saint Louis, MO 63110
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Secondary Practice Location 1

Location 11011 E Montclair StSpringfield, MO 65807-5075 · Phone (417) 269-3700

Other Identifiers 1

Medicaid200061186MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Insurance Company, UnitedHealthcare.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

Dr. Alexander S Plattner 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 ID1254844301
PECOS Enrollment IDI20250701003475
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 Alexander Plattner reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Washington University
Same address
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
Lester E Cox Medical Centers
194 mi
Pediatric Surgery
1011 E MONTCLAIR ST
Springfield, MO 65807
  • Reassigned Medicare billing, Missouri enrollment
  • 39 clinicians in this Medicare group
NPI 1851799555 (417) 269-1010

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.

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 Alexander Plattner's NPI number?

The NPI number for Alexander Plattner is 1801382700. It was assigned to this individual provider in the NPPES registry on July 3, 2018.

Where is Alexander Plattner located?

Alexander Plattner practices at 1 Childrens Pl Div Ped Infectious Disease, Saint Louis, MO 63110. The listed phone number is (314) 454-6050.

What is Alexander Plattner's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Infectious Diseases, with taxonomy code 2080P0208X.

Is Alexander Plattner enrolled in Medicare?

Yes. Alexander Plattner 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 Alexander Plattner's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Plattner reassigns Medicare benefits to 2 organizations: Washington University (Saint Louis, MO) and Lester E Cox Medical Centers (Springfield, 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 Alexander Plattner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alexander Plattner accept?

Health plans from Oscar Insurance Company and UnitedHealthcare list Alexander Plattner 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 Alexander Plattner was last updated on August 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.