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DR. THOMAS MANFRED PFEIFFER MD
NPI 1922492990
Pediatrics - Pediatric Hematology-Oncology in Saint Louis, MO

Active since March 26, 2015PECOS Enrolled
1 CHILDRENS PL, DIV PED NEPHROLOGY, SAINT LOUIS, MO 63110(314) 454-6043(888) 463-6898 Get Directions Write a Review

NPPES record last updated: April 17, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 25, 2024, Apr 10, 2024, Sep 23, 2022 (3 updates tracked since 2022).

About Dr. Thomas Manfred Pfeiffer Md NPPES

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

DR. THOMAS MANFRED PFEIFFER MD (NPI 1922492990) is an individual pediatric hematology-oncology provider in Saint Louis, Missouri, licensed in Missouri (2022035339) and active in the NPI registry since March 2015. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1922492990
Entity TypeIndividualMale
Primary Taxonomy2080P0207X
Provider Legal NameDR. THOMAS MANFRED PFEIFFERCredential: MD
Location Address1 CHILDRENS PL, DIV PED NEPHROLOGYSaint Louis, MO 63110-1002
Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 454-6043 · Fax (888) 463-6898
Phone(314) 454-6043
Fax(888) 463-6898
Sole ProprietorNo
Enumeration DateMarch 26, 2015
Last NPPES UpdateApril 17, 20253 updates tracked since enumeration
✔ NPI 1922492990 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric Hematology-OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0207X
License✔ Licensed in MO · 2022035339
Definition
A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases.
Also ListedPediatricsTaxonomy 208000000X · License 2022035339 (MO)
1 CHILDRENS PL, Saint Louis, MO 63110
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Other Identifiers 1

Medicaid200116136MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cox HealthPlans.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. Thomas Manfred Pfeiffer 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 Reassignment

Medicare enrollment records show Thomas Pfeiffer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

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

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 Thomas Pfeiffer's NPI number?

The NPI number for Thomas Pfeiffer is 1922492990. It was assigned to this individual provider in the NPPES registry on March 26, 2015.

Where is Thomas Pfeiffer located?

Thomas Pfeiffer practices at 1 Childrens Pl Div Ped Nephrology, Saint Louis, MO 63110. The listed phone number is (314) 454-6043.

What is Thomas Pfeiffer's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.

Is Thomas Pfeiffer enrolled in Medicare?

Yes. Thomas Pfeiffer is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Thomas Pfeiffer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Pfeiffer reassigns Medicare benefits to Washington University (Saint Louis, MO). The 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 Thomas Pfeiffer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Thomas Pfeiffer accept?

Health plans from Cox HealthPlans list Thomas Pfeiffer 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 Thomas Pfeiffer was last updated on April 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.