DR. BESS A MARSHALL MD
NPI 1164440681
Pediatrics - Pediatric Endocrinology in Saint Louis, MO

Q: What is Bess Marshall's NPI number?

The NPI number for Bess Marshall is 1164440681. It was assigned to this individual provider in the NPPES registry on July 17, 2006.

Q: What is Bess Marshall's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Endocrinology, with taxonomy code 2080P0205X.

Q: When was this NPI record last updated?

The NPPES record for Bess Marshall 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 16 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.

Active since July 17, 2006PECOS EnrolledAccepts Medicare Assignment

79.29/100

CMS Quality Rating

1 CHILDRENS PL, DIV PED ENDOCRINOLOGY AND DIABETES, SAINT LOUIS, MO 63110(314) 454-6051(314) 454-6225 Get Directions Write a Review

NPPES record last updated: April 17, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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

On this page

About Dr. Bess A Marshall Md NPPES

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

DR. BESS A MARSHALL MD (NPI 1164440681) is an individual pediatric endocrinology provider in Saint Louis, Missouri, licensed in Missouri (R5N26) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of Vanderbilt University School Of Medicine (1986).

NPPES Registry Identity

NPI1164440681

Entity TypeIndividualFemale

Primary Taxonomy2080P0205X

Provider Legal NameDR. BESS A MARSHALLCredential: MD

Location Address1 CHILDRENS PL, DIV PED ENDOCRINOLOGY AND DIABETESSaint Louis, MO 63110-1002

Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 454-6051 · Fax (314) 454-6225

Phone(314) 454-6051

Fax(314) 454-6225

Sole ProprietorNo

Medical School CMSVanderbilt University School Of MedicineGraduated 1986

Enumeration DateJuly 17, 2006

Last NPPES UpdateApril 17, 20256 updates tracked since enumeration

✔ NPI 1164440681 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric EndocrinologyAllopathic & Osteopathic Physicians

Taxonomy Code2080P0205X

License✔ Licensed in MO · R5N26

Definition

A pediatrician who provides expert care to infants, children and adolescents who have diseases that result from an abnormality in the endocrine glands (glands which secrete hormones). These diseases include diabetes mellitus, growth failure, unusual size for age, early or late pubertal development, birth defects, the genital region and disorders of the thyroid, the adrenal and pituitary glands.

Also ListedPediatricsTaxonomy 208000000X · License R5N26 (MO)

1 CHILDRENS PL, Saint Louis, MO 63110

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Other Identifiers 1

Medicaid203675301MO

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. Bess A Marshall 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 ID7012005200

PECOS Enrollment IDI20071126000190

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 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.

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

Quality

71.46

Promoting Interoperability

100

Improvement Activities

Cost

59.51

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

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

DR. JEFFREY MAGEE MD

Pediatrics (Pediatric Hematology-Oncology)

1 CHILDRENS PL, DIV PED HEMATOLOGY AND ONC, STE 9S
SAINT LOUIS, MO 63110

St. Louis City (314) 454-6018

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 Bess Marshall's NPI number?

The NPI number for Bess Marshall is 1164440681. It was assigned to this individual provider in the NPPES registry on July 17, 2006.

Where is Bess Marshall located?

Bess Marshall practices at 1 Childrens Pl Div Ped Endocrinology And Diabetes, Saint Louis, MO 63110. The listed phone number is (314) 454-6051.

What is Bess Marshall's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Endocrinology, with taxonomy code 2080P0205X.

Is Bess Marshall enrolled in Medicare?

Yes. Bess Marshall 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 Bess Marshall accept?

Health plans from Cox HealthPlans list Bess Marshall 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 Bess Marshall 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 16 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.