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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

NATALIE RENEE LARSEN RDN, LDN
NPI 1790548899
Dietitian, Registered in Chicago, IL

Active since February 01, 2024
680 N LAKE SHORE DR STE 110-3274, CHICAGO, IL 60611(999) 999-9999 Get Directions Write a Review

NPPES record last updated: October 12, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 12, 2026, Mar 26, 2026 (2 updates tracked since 2026).

About Natalie Renee Larsen Rdn, Ldn NPPES

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

NATALIE RENEE LARSEN RDN, LDN (NPI 1790548899) is an individual dietitian, registered in Chicago, Illinois, licensed in Illinois (164.010088) and active in the NPI registry since February 2024. She maintains 9 additional practice locations and is a graduate of Other (2019).

NPPES Registry Identity

NPI1790548899
Entity TypeIndividualFemale
Primary Taxonomy133V00000X
Provider Legal NameNATALIE RENEE LARSENCredential: RDN, LDN
Location Address680 N LAKE SHORE DR STE 110-3274Chicago, IL 60611-4546
Mailing Address680 N Lake Shore Dr Ste 110-3274Chicago, IL 60611-4546
Phone(999) 999-9999
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateFebruary 1, 2024
Last NPPES UpdateOctober 12, 20262 updates tracked since enumeration
NPPES CertifiedOctober 12, 2026
✔ NPI 1790548899 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDietitian, RegisteredDietary & Nutritional Service Providers
Taxonomy Code133V00000X
Licenses✔ Licensed in IL · 164.010088✔ Licensed in WI · 5343-29✔ Licensed in AZ · 86359191✔ Licensed in TX · DT90573✔ Licensed in CO · 86359191✔ Licensed in VA · 86359191✔ Licensed in MI · 86359191✔ Licensed in NJ · 86359191
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.
680 N LAKE SHORE DR STE 110-3274, Chicago, IL 60611
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Secondary Practice Locations 9

Location 12415 E Camelback Rd Ste 700Phoenix, AZ 85016-4245 · Phone (480) 878-7843
Location 2650 Warrenville Rd Ste 100Lisle, IL 60532-4315 · Phone (847) 318-3013 · Fax (833) 290-5413
Location 330700 Telegraph Rd Ste 15401Bingham Farms, MI 48025-4524 · Phone (313) 631-7878 · Fax (866) 516-0753
Location 45605 N MacArthur BlvdIrving, TX 75038-2422 · Phone (972) 460-0910 ext. 53559
Location 58741 S Greenwood Ave Ste 106-108Chicago, IL 60619-7061 · Phone (773) 920-2755 · Fax (630) 317-7579
Location 62311 Wilson Blvd Fl 3Arlington, VA 22201-5436 · Phone (804) 571-2336 · Fax (844) 881-7701
Location 7800 Kinderkamack Rd Ofc 121Oradell, NJ 07649-1534 · Phone (347) 252-9771
Location 8708 Main St Fl 10Houston, TX 77002-3246 · Phone (972) 460-0910
Location 91125 17th St Ste 1000Denver, CO 80202-2043 · Phone (720) 204-5760 ext. 89230

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Natalie Renee Larsen Rdn, Ldn is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8325569452
PECOS Enrollment IDI20260402002471, I20260403000213, I20260412000069

Medicare Billing Reassignments

5

Medicare enrollment records show Natalie Larsen reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Detroit Kidney Care, P.C.
921 mi
Nephrology
1125 17TH ST STE 1000
Denver, CO 80202
  • Reassigned Medicare billing, Michigan enrollment
  • 39 clinicians in this Medicare group
NPI 1942811351 (855) 962-4638
Integrated Patient Solutions Of Michigan, P.C.
921 mi
Nephrology
1125 17TH ST STE 1000
Denver, CO 80202
  • Reassigned Medicare billing, Michigan enrollment
  • 39 clinicians in this Medicare group
NPI 1063112605 (855) 962-4638
Wisconsin Kidney Care, S.C.
921 mi
Nephrology
1125 17TH ST STE 1000
Denver, CO 80202
  • Reassigned Medicare billing, Wisconsin enrollment
  • 16 clinicians in this Medicare group
NPI 1114539087 (855) 962-4638
Integrated Patient Solutions Mid-Atlantic, PC
921 mi
Nephrology
1125 17TH ST STE 1000
Denver, CO 80202
  • Reassigned Medicare billing, New Jersey enrollment
  • 22 clinicians in this Medicare group
NPI 1578275137 (855) 962-4638
Strive Health Southeast, LLC
921 mi
Nephrology
1125 17TH ST STE 1000
Denver, CO 80202
  • Reassigned Medicare billing, District of Columbia enrollment
  • 29 clinicians in this Medicare group
NPI 1811506975 (855) 962-4638

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

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 Natalie Larsen's NPI number?

The NPI number for Natalie Larsen is 1790548899. It was assigned to this individual provider in the NPPES registry on February 1, 2024.

Where is Natalie Larsen located?

Natalie Larsen practices at 680 N Lake Shore Dr Ste 110-3274, Chicago, IL 60611. The listed phone number is (999) 999-9999.

What is Natalie Larsen's specialty?

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

Is Natalie Larsen enrolled in Medicare?

Yes. Natalie Larsen is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Natalie Larsen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Natalie Larsen reassigns Medicare benefits to 5 organizations: Detroit Kidney Care, P.C. (Denver, CO), Integrated Patient Solutions Of Michigan, P.C. (Denver, CO), Wisconsin Kidney Care, S.C. (Denver, CO), Integrated Patient Solutions Mid-Atlantic, PC (Denver, CO) and Strive Health Southeast, LLC (Denver, CO). 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 Natalie Larsen'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 Natalie Larsen was last updated on October 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 days 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.