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MS. SONJA C. SIMZAK MS-MPH, RD, LDN
NPI 1083814289
Dietitian, Registered in Washington, DC

Active since July 25, 2007
5801 ARMY PENTAGON, DILORENZO PENTAGON HEALTH CLINIC, WASHINGTON, DC 20310(036) 927-8898 Get Directions Write a Review

NPPES record last updated: February 2, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Feb 2, 2023, Jul 12, 2017, Mar 4, 2016 (3 updates tracked since 2016).

About Ms. Sonja C. Simzak Ms-mph, Rd, Ldn NPPES

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

MS. SONJA C. SIMZAK MS-MPH, RD, LDN (NPI 1083814289) is an individual dietitian, registered in Washington, District Of Columbia, licensed in Maryland (978644) and active in the NPI registry since July 2007.

NPPES Registry Identity

NPI1083814289
Entity TypeIndividualFemale
Primary Taxonomy133V00000X
Provider Legal NameMS. SONJA C. SIMZAKCredential: MS-MPH, RD, LDN
Location Address5801 ARMY PENTAGON, DILORENZO PENTAGON HEALTH CLINICWashington, DC 20310
Mailing Address5801 Army Pentagon, Dilorenzo Tricare Health ClinicWashington, DC 20310-5801 · (703) 692-8898
Phone(036) 927-8898
Sole ProprietorNo
Enumeration DateJuly 25, 2007
Last NPPES UpdateFebruary 2, 20233 updates tracked since enumeration
NPPES CertifiedFebruary 2, 2023
✔ NPI 1083814289 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyDietitian, RegisteredDietary & Nutritional Service Providers
Taxonomy Code133V00000X
License✔ Licensed in MD · 978644
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.
Also ListedNutritionistTaxonomy 133N00000X · License DX2932 (MD)
5801 ARMY PENTAGON, Washington, DC 20310
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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.

DR. DONNA JANE TERRELL PSYD
Psychologist
5801 ARMY PENTAGON
WASHINGTON, DC 20310
District of Columbia (703) 692-8878
JAMIE RATH PA-C
Physician Assistant
5801 ARMY PENTAGON
WASHINGTON, DC 20310
District of Columbia (703) 692-6131
DR. SEAN ROBERT WISE M.D.
Family Medicine (Sports Medicine)
5801 ARMY PENTAGON
WASHINGTON, DC 20310
District of Columbia (910) 907-9619
MRS. IREM SHAH FASIHI PHARMD
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
5801 ARMY PENTAGON
WASHINGTON, DC 20310
District of Columbia (703) 692-8771
MS. AMY ANNETTE SCHERER LPN
Licensed Practical Nurse
5801 ARMY PENTAGON
WASHINGTON, DC 20310
District of Columbia (703) 692-2625
DR. TEKIA LANELLE JONES PMHNP-BC, DNP
Nurse Practitioner (Psychiatric/Mental Health)
5801 ARMY PENTAGON
WASHINGTON, DC 20310
District of Columbia (703) 681-7381
MARIA ZUMER
Physician Assistant
5801 ARMY PENTAGON
WASHINGTON, DC 20310
District of Columbia (703) 692-8860
DR. ARTHUR LYONS MD, PHD
Internal Medicine (Infectious Disease)
5801 ARMY PENTAGON, DTHC, CORRIDOR 8, ROOM 233,
WASHINGTON, DC 20310
District of Columbia (703) 692-7913

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 Sonja Simzak's NPI number?

The NPI number for Sonja Simzak is 1083814289. It was assigned to this individual provider in the NPPES registry on July 25, 2007.

Where is Sonja Simzak located?

Sonja Simzak practices at 5801 Army Pentagon Dilorenzo Pentagon Health Clinic, Washington, DC 20310. The listed phone number is (036) 927-8898.

What is Sonja Simzak's specialty?

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

When was this NPI record last updated?

The NPPES record for Sonja Simzak was last updated on February 2, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.