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MS. CATHY L GROSS PNP
NPI 1730128943
Nurse Practitioner - Pediatrics in Saint Louis, MO

Active since June 05, 2006PECOS Enrolled
1 CHILDRENS PL, DIV PED GENETICS AND GENOMIC MED, SAINT LOUIS, MO 63110(314) 454-6093(314) 454-2075 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, Aug 30, 2023 and 1 more (4 updates tracked since 2022).

About Ms. Cathy L Gross Pnp NPPES

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

MS. CATHY L GROSS PNP (NPI 1730128943) is an individual pediatrics provider in Saint Louis, Missouri, licensed in Missouri (132510) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1730128943
Entity TypeIndividualFemale
Primary Taxonomy363LP0200X
Provider Legal NameMS. CATHY L GROSSCredential: PNP
Location Address1 CHILDRENS PL, DIV PED GENETICS AND GENOMIC MEDSaint Louis, MO 63110-1002
Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 454-6093 · Fax (314) 454-2075
Phone(314) 454-6093
Fax(314) 454-2075
Sole ProprietorNo
Enumeration DateJune 5, 2006
Last NPPES UpdateApril 17, 20254 updates tracked since enumeration
NPPES CertifiedJune 23, 2022
✔ NPI 1730128943 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · PediatricsPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0200X
License✔ Licensed in MO · 132510
1 CHILDRENS PL, Saint Louis, MO 63110
Open in Google Maps ↗

Other Identifiers 1

Medicaid421052200MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Cathy L Gross Pnp 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 Reassignments

4

Medicare enrollment records show Cathy Gross reassigns Medicare billing to 4 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
Washington University Physicians In Illinois, Inc
0.2 mi
Multi-Specialty
4901 FOREST PARK AVE STE 341
Saint Louis, MO 63108
  • Reassigned Medicare billing, Illinois enrollment
  • 530 clinicians in this Medicare group
NPI 1457203135 (314) 454-8181
Ssm Health Care St. Louis
2.6 mi
Emergency Medicine
6420 CLAYTON RD
Saint Louis, MO 63117
  • Reassigned Medicare billing, Missouri enrollment
  • 741 clinicians in this Medicare group
NPI 1366400855 (314) 768-8000
Ssm Cardinal Glennon Childrens Hospital
12 mi
Pediatrics
2927 S . KINGS HIGHWAY BLVD
Saint Louis, MO 63139
  • Reassigned Medicare billing, Missouri enrollment
  • Medicare enrollment name: Ssm Cardinal Glennon Children's Hospital
  • 414 clinicians in this Medicare group
NPI 1073568226 (314) 268-4070

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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
$86.32 typical visit price
range $55.65 – $169.38
Typical copayment $21.58 (range $13.91 – $42.34)
Most-billed visit code 99203
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.

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 Cathy Gross's NPI number?

The NPI number for Cathy Gross is 1730128943. It was assigned to this individual provider in the NPPES registry on June 5, 2006.

Where is Cathy Gross located?

Cathy Gross practices at 1 Childrens Pl Div Ped Genetics And Genomic Med, Saint Louis, MO 63110. The listed phone number is (314) 454-6093.

What is Cathy Gross's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.

Is Cathy Gross enrolled in Medicare?

Yes. Cathy Gross is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Cathy Gross's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Cathy Gross reassigns Medicare benefits to 4 organizations: Washington University (Saint Louis, MO), Washington University Physicians In Illinois, Inc (Saint Louis, MO), Ssm Health Care St. Louis (Saint Louis, MO) and Ssm Cardinal Glennon Childrens Hospital (Saint Louis, 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 Cathy Gross's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Cathy Gross accept?

Health plans from UnitedHealthcare list Cathy Gross 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 Cathy Gross 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.