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DR. ROBERT J HAYASHI MD
NPI 1386662062
Pediatrics - Pediatric Hematology-Oncology in Saint Louis, MO

Active since July 18, 2006PECOS EnrolledAccepts Medicare Assignment
79.29/100
CMS Quality Rating
1 CHILDRENS PL, DIV PED HEMATOLOGY AND ONC, SAINT LOUIS, MO 63110(314) 454-6018(844) 621-4392 Get Directions Write a Review

NPPES record last updated: April 17, 2025. Verified against the NPPES registry weekly; last sync: September 27, 2026.

Record update history: Apr 25, 2024, Apr 10, 2024, Nov 15, 2021 and 3 more (6 updates tracked since 2016).

About Dr. Robert J Hayashi Md NPPES

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

DR. ROBERT J HAYASHI MD (NPI 1386662062) is an individual pediatric hematology-oncology provider in Saint Louis, Missouri, licensed in Missouri (105104) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Barnes Jewish Hospital, and is a graduate of Washington University School Of Medicine (1986).

NPPES Registry Identity

NPI1386662062
Entity TypeIndividualMale
Primary Taxonomy2080P0207X
Provider Legal NameDR. ROBERT J HAYASHICredential: MD
Location Address1 CHILDRENS PL, DIV PED HEMATOLOGY AND ONCSaint Louis, MO 63110-1002
Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 454-6018 · Fax (844) 621-4392
Phone(314) 454-6018
Fax(844) 621-4392
Sole ProprietorNo
Medical School CMSWashington University School Of MedicineGraduated 1986
Enumeration DateJuly 18, 2006
Last NPPES UpdateApril 17, 20256 updates tracked since enumeration
✔ NPI 1386662062 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 · 105104
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 105104 (MO)
1 CHILDRENS PL, Saint Louis, MO 63110
Open in Google Maps ↗

Other Identifiers 1

Medicaid206903106MO

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, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Robert J Hayashi 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 ID7517083744
PECOS Enrollment IDI20100924001345
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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Barnes Jewish Hospital

Acute Care Hospitals · Saint Louis, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number260032
LocationOne Barnes-Jewish Hospital PlazaSaint Louis, MO 63110 · St. Louis City County
Emergency services Birthing friendly

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

79.29/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality71.46
Promoting Interoperability100
Improvement Activities40
Cost59.51

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 Robert Hayashi's NPI number?

The NPI number for Robert Hayashi is 1386662062. It was assigned to this individual provider in the NPPES registry on July 18, 2006.

Where is Robert Hayashi located?

Robert Hayashi practices at 1 Childrens Pl Div Ped Hematology And Onc, Saint Louis, MO 63110. The listed phone number is (314) 454-6018.

What is Robert Hayashi's specialty?

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

Is Robert Hayashi enrolled in Medicare?

Yes. Robert Hayashi 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.

What insurance does Robert Hayashi accept?

Health plans from Cox HealthPlans list Robert Hayashi 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.

Is Robert Hayashi affiliated with any hospitals?

According to CMS data, Robert Hayashi is affiliated with Barnes Jewish Hospital.

When was this NPI record last updated?

The NPPES record for Robert Hayashi 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 17 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.