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THERESA NGUYEN MD
NPI 1760001556
Family Medicine in Des Moines, IA

Active since April 11, 2020PECOS EnrolledAccepts Medicare Assignment
1350 DES MOINES ST STE 110, DES MOINES, IA 50309(515) 643-0833(515) 643-0933 Get Directions Write a Review

NPPES record last updated: December 27, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 27, 2024, Apr 11, 2020 (2 updates tracked since 2020).

About Theresa Nguyen Md NPPES

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

THERESA NGUYEN MD (NPI 1760001556) is an individual family medicine provider in Des Moines, Iowa, licensed in Iowa (MD-53558) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS, is affiliated with Mercyone Des Moines Medical Center, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1760001556
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameTHERESA NGUYENCredential: MD
Location Address1350 DES MOINES ST STE 110Des Moines, IA 50309-5507
Mailing AddressPo Box 1475Des Moines, IA 50305-1475 · (515) 643-0833 · Fax (515) 643-0933
Phone(515) 643-0833
Fax(515) 643-0933
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateApril 11, 2020
Last NPPES UpdateDecember 27, 20242 updates tracked since enumeration
NPPES CertifiedDecember 27, 2024
✔ NPI 1760001556 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in IA · MD-53558
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
1350 DES MOINES ST STE 110, Des Moines, IA 50309
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Theresa Nguyen 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 ID5698199834
PECOS Enrollment IDI20241211002694
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 Reassignment

Medicare enrollment records show Theresa Nguyen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mercy Clinics, Inc.
Same address
Primary Care
1350 DES MOINES ST STE 110
Des Moines, IA 50309
  • Reassigned Medicare billing, Iowa enrollment
  • 516 clinicians in this Medicare group
NPI 1194745752 (515) 643-0833

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

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mercyone Des Moines Medical Center

Acute Care Hospitals · Des Moines, IA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number160083
Location1111 6th AveDes Moines, IA 50314 · Polk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 50309 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
$81.84 typical visit price
range $52.96 – $161.40
Typical copayment $20.46 (range $13.24 – $40.35)
Most-billed visit code 99203
Established Patient
$94.05 typical visit price
range $16.91 – $131.98
Typical copayment $23.51 (range $4.22 – $32.99)
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 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

REECHA REISING ARNP, AGPCNP-BC
Nurse Practitioner
1350 DES MOINES ST STE 110
DES MOINES, IA 50309
Polk County (515) 643-4915
MERCY CLINICS, INC.
Clinic/Center (Primary Care)
1350 DES MOINES ST STE 110
DES MOINES, IA 50309
Polk County (515) 643-0833
JENNIFER CHUNG TREVILLYAN ARNP
Nurse Practitioner (Adult Health)
1350 DES MOINES ST STE 110
DES MOINES, IA 50309
Polk County (515) 643-2519
DR. VALERIE KAY TORGERSON D.O.
Family Medicine
1350 DES MOINES ST STE 110
DES MOINES, IA 50309
Polk County (515) 643-0833
MICHAEL BLAESS DO
Family Medicine
1350 DES MOINES ST STE 110
DES MOINES, IA 50309
Polk County (515) 643-0833
DR. NIVEDITA KRISHNAN M.D.
Pediatrics
1350 DES MOINES ST STE 110
DES MOINES, IA 50309
Polk County (515) 358-6500
REBEKAH L ROGERS NP
Nurse Practitioner
1350 DES MOINES ST STE 110
DES MOINES, IA 50309
Polk County (515) 643-4915

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 Theresa Nguyen's NPI number?

The NPI number for Theresa Nguyen is 1760001556. It was assigned to this individual provider in the NPPES registry on April 11, 2020.

Where is Theresa Nguyen located?

Theresa Nguyen practices at 1350 Des Moines St Ste 110, Des Moines, IA 50309. The listed phone number is (515) 643-0833.

What is Theresa Nguyen's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Theresa Nguyen enrolled in Medicare?

Yes. Theresa Nguyen 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.

Which organization bills Medicare for Theresa Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Theresa Nguyen reassigns Medicare benefits to Mercy Clinics, Inc. (Des Moines, IA). 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 Theresa Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Theresa Nguyen accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and Oscar Health and 2 other insurers list Theresa Nguyen 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.

Is Theresa Nguyen affiliated with any hospitals?

According to CMS data, Theresa Nguyen is affiliated with Mercyone Des Moines Medical Center.

When was this NPI record last updated?

The NPPES record for Theresa Nguyen was last updated on December 27, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.