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NICOLE S ST JOHN MS, RDN, LDN
NPI 1235085424
Dietitian, Registered in Chicago, IL

Active since March 09, 2026
675 N SAINT CLAIR ST STE 14-200, CHICAGO, IL 60611(312) 695-7382(312) 695-0014 Get Directions Write a Review

NPPES record last updated: July 21, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 21, 2026, Mar 9, 2026 (2 updates tracked since 2026).

About Nicole S St John Ms, Rdn, Ldn NPPES

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

NICOLE S ST JOHN MS, RDN, LDN (NPI 1235085424) is an individual dietitian, registered in Chicago, Illinois, licensed in Illinois (164022311) and active in the NPI registry since March 2026. She is a graduate of Texas Tech University Health Science Center School Of Medicine (2025).

NPPES Registry Identity

NPI1235085424
Entity TypeIndividualFemale
Primary Taxonomy133V00000X
Provider Legal NameNICOLE S ST JOHNCredential: MS, RDN, LDN
Location Address675 N SAINT CLAIR ST STE 14-200Chicago, IL 60611-5966
Mailing Address675 N Saint Clair St Ste 14-200Chicago, IL 60611-5966 · (312) 695-7382 · Fax (312) 695-0014
Phone(312) 695-7382
Fax(312) 695-0014
Sole ProprietorNo
Medical School CMSTexas Tech University Health Science Center School Of MedicineGraduated 2025
Enumeration DateMarch 9, 2026
Last NPPES UpdateJuly 21, 20262 updates tracked since enumeration
NPPES CertifiedJuly 21, 2026
✔ NPI 1235085424 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDietitian, RegisteredDietary & Nutritional Service Providers
Taxonomy Code133V00000X
License✔ Licensed in IL · 164022311
Definition
A Registered Dietitian (RD)/Registered Dietitian Nutritionist (RDN) is an individual uniquely trained in the science of nutrition and practice of dietetics to design and provide medical nutrition therapy (MNT) and other evidence-based applications of the Nutrition Care Process (NCP) that exemplify the profession's systematic approach to providing high quality nutrition care. Registered dietitians provide MNT for the purpose of disease prevention or management, or to treat or rehabilitate an illness, injury, or condition, with the use of specific, indicated physical and cognitive nutrition care services comprised of one or more of the following aspects of the NCP: nutrition assessment/reassessment, nutrition diagnosis, nutrition intervention (e.g., nutrition counseling, therapeutic diet ordering, and nutrition education) and nutrition monitoring and evaluation.
675 N SAINT CLAIR ST STE 14-200, Chicago, IL 60611
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Nicole S St John Ms, Rdn, Ldn is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2163998683
PECOS Enrollment IDI20260421002752

Medicare Billing Reassignment

Medicare enrollment records show Nicole St John reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Northwestern Medical Faculty Foundation
34 mi
Multi-Specialty
DEPT 5777
Carol Stream, IL 60122
  • Reassigned Medicare billing, Illinois enrollment
  • 4,817 clinicians in this Medicare group
NPI 1346235314 (855) 694-2866

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.

ASHLEY TURNER MD
Obstetrics & Gynecology
675 N SAINT CLAIR ST STE 14-200
CHICAGO, IL 60611
Cook County (312) 926-8678
DR. CATHERINE NOSAL MD
Obstetrics & Gynecology
675 N SAINT CLAIR ST STE 14-200
CHICAGO, IL 60611
Cook County (312) 695-4458
MS. ELISABETH L STARK
Obstetrics & Gynecology
675 N SAINT CLAIR ST STE 14-200
CHICAGO, IL 60611
Cook County (312) 695-7382
DR. ELEANOR R GERMANO MD
Obstetrics & Gynecology
675 N SAINT CLAIR ST STE 14-200
CHICAGO, IL 60611
Cook County (312) 695-7542
DR. MAURA PARKER QUINLAN MD
Obstetrics & Gynecology
675 N SAINT CLAIR ST STE 14-200
CHICAGO, IL 60611
Cook County (312) 695-7382
BRITTANY J CLINE
Obstetrics & Gynecology
675 N SAINT CLAIR ST STE 14-200
CHICAGO, IL 60611
Cook County (312) 695-7382
ISMENE POTAKIS PA-C
Physician Assistant
675 N SAINT CLAIR ST STE 14-200
CHICAGO, IL 60611
Cook County (126) 957-5423
MS. SARA MARIE SPENCER M.S., C.G.C.
Genetic Counselor, MS
675 N SAINT CLAIR ST STE 14-200
CHICAGO, IL 60611
Cook County (312) 926-0596

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 Nicole St John's NPI number?

The NPI number for Nicole St John is 1235085424. It was assigned to this individual provider in the NPPES registry on March 9, 2026.

Where is Nicole St John located?

Nicole St John practices at 675 N Saint Clair St Ste 14-200, Chicago, IL 60611. The listed phone number is (312) 695-7382.

What is Nicole St John's specialty?

The primary specialty registered for this NPI is Dietitian, Registered with taxonomy code 133V00000X.

Is Nicole St John enrolled in Medicare?

Yes. Nicole St John is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Nicole St John's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nicole St John reassigns Medicare benefits to Northwestern Medical Faculty Foundation (Carol Stream, IL). 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 Nicole St John's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Nicole St John was last updated on July 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.