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DR. RACHEL LYNN GUESS MD
NPI 1629566278
Pediatrics - Pediatric Rheumatology in Saint Louis, MO

Active since April 30, 2018PECOS EnrolledAccepts Medicare Assignment
1 CHILDRENS PL, DIV PED RHEUMATOLOGY, SAINT LOUIS, MO 63110(314) 454-6124(844) 616-1418 Get Directions Write a Review

NPPES record last updated: August 13, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 13, 2025, Jul 4, 2022, Jul 9, 2021 and 1 more (4 updates tracked since 2018).

About Dr. Rachel Lynn Guess Md NPPES

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

DR. RACHEL LYNN GUESS MD (NPI 1629566278) is an individual pediatric rheumatology provider in Saint Louis, Missouri, licensed in Missouri (2022025250) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS and is a graduate of University Of Texas Medical School At San Antonio (2018).

NPPES Registry Identity

NPI1629566278
Entity TypeIndividualFemale
Primary Taxonomy2080P0216X
Provider Legal NameDR. RACHEL LYNN GUESSCredential: MD
Location Address1 CHILDRENS PL, DIV PED RHEUMATOLOGYSaint Louis, MO 63110-1002
Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 454-6124 · Fax (844) 616-1418
Phone(314) 454-6124
Fax(844) 616-1418
Sole ProprietorNo
Medical School CMSUniversity Of Texas Medical School At San AntonioGraduated 2018
Enumeration DateApril 30, 2018
Last NPPES UpdateAugust 13, 20254 updates tracked since enumeration
NPPES CertifiedJuly 4, 2022
✔ NPI 1629566278 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0216X
License✔ Licensed in MO · 2022025250
Definition
A pediatrician who treats diseases of joints, muscle, bones and tendons. A pediatric rheumatologist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
Also ListedPediatricsTaxonomy 208000000X · License 2022025250 (MO)
1 CHILDRENS PL, Saint Louis, MO 63110
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Other Identifiers 1

Medicaid200112918MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, 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. Rachel Lynn Guess 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 ID1759786650
PECOS Enrollment IDI20250630003459
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.

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
HANNAH EDELMAN MD, PHD
Psychiatry & Neurology (Neurology)
1 CHILDRENS PL
SAINT LOUIS, MO 63110
St. Louis City (314) 454-6120
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

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 Rachel Guess's NPI number?

The NPI number for Rachel Guess is 1629566278. It was assigned to this individual provider in the NPPES registry on April 30, 2018.

Where is Rachel Guess located?

Rachel Guess practices at 1 Childrens Pl Div Ped Rheumatology, Saint Louis, MO 63110. The listed phone number is (314) 454-6124.

What is Rachel Guess's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Rheumatology, with taxonomy code 2080P0216X.

Is Rachel Guess enrolled in Medicare?

Yes. Rachel Guess 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 Rachel Guess accept?

Health plans from Blue Cross and Blue Shield of Texas and Cox HealthPlans list Rachel Guess 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 Rachel Guess was last updated on August 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.