1. Home
  2. Directory
  3. Iowa
  4. Sioux City
  5. Obstetrics Gynecology
  6. NPI Profile

HANNAH IRENE DEWALD M.D.
NPI 1790040269
Obstetrics & Gynecology in Sioux City, IA

Active since July 10, 2012PECOS EnrolledAccepts Medicare Assignment
2730 PIERCE ST, SUITE 201, SIOUX CITY, IA 51104(712) 277-3141(712) 277-2645 Get Directions Write a Review

NPPES record last updated: October 18, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 18, 2022, Jul 31, 2018, Jun 30, 2016 (3 updates tracked since 2016).

About Hannah Irene Dewald M.d. NPPES

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

HANNAH IRENE DEWALD M.D. (NPI 1790040269) is an individual obstetrics & gynecology provider in Sioux City, Iowa, licensed in Iowa (43380) and active in the NPI registry since July 2012. She is enrolled in Medicare PECOS, is affiliated with St Lukes Regional Medical Center, and is a graduate of University Of Iowa, Rj & L Carver College Of Medicine (2012).

NPPES Registry Identity

NPI1790040269
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameHANNAH IRENE DEWALDCredential: M.D.
Location Address2730 PIERCE ST, SUITE 201Sioux City, IA 51104
Mailing Address2730 Pierce St, Suite 201Sioux City, IA 51104-3796 · (712) 277-3141 · Fax (712) 277-2645
Phone(712) 277-3141
Fax(712) 277-2645
Sole ProprietorNo
Medical School CMSUniversity Of Iowa, Rj & L Carver College Of MedicineGraduated 2012
Enumeration DateJuly 10, 2012
Last NPPES UpdateOctober 18, 20223 updates tracked since enumeration
NPPES CertifiedOctober 18, 2022
✔ NPI 1790040269 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in IA · 43380
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
2730 PIERCE ST, Sioux City, IA 51104
Open in Google Maps ↗

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

Hannah Irene Dewald M.d. 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 ID8921222407
PECOS Enrollment IDI20160628000148
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

2

Medicare enrollment records show Hannah Dewald reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Siouxland Obstetrics & Gynecology, P.C.
Same address
Obstetrics & Gynecology
2730 PIERCE ST STE 201
Sioux City, IA 51104
  • Reassigned Medicare billing, Iowa enrollment
  • Medicare enrollment name: Siouxland Obstetrics & Gynecology PC
  • 7 clinicians in this Medicare group
NPI 1134250939 (712) 277-3141
Siouxland Community Health Center
1.3 mi
Federally Qualified Health Center (FQHC)
1021 NEBRASKA ST
Sioux City, IA 51105
  • Reassigned Medicare billing, Iowa enrollment
  • 47 clinicians in this Medicare group
NPI 1558355305 (712) 252-2477

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

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
41 services23 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
21 services21 patients

Hospital Affiliations CMS Care Compare 2

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

St Lukes Regional Medical Center

Acute Care Hospitals · Sioux City, IA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number160146
Location2720 Stone Park BoulevardSioux City, IA 51104 · Woodbury County
Emergency services Birthing friendly

Buena Vista Regional Medical Center

Critical Access Hospitals · Storm Lake, IA
4/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number161375
Location1525 West 5th StreetStorm Lake, IA 50588 · Buena Vista County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 51104 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
$122.23 typical visit price
range $52.96 – $161.40
Typical copayment $30.55 (range $13.24 – $40.35)
Most-billed visit code 99204
Established Patient
$66.36 typical visit price
range $16.91 – $131.98
Typical copayment $16.59 (range $4.22 – $32.99)
Most-billed visit code 99213
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.

RICHARD D. HILDEBRAND M.D.
Specialist
2730 PIERCE ST, STE 300
SIOUX CITY, IA 51104
Woodbury County (712) 234-1005
DR. ROBERT MARK STEWART M.D.
Internal Medicine
2730 PIERCE ST, SUITE 401
SIOUX CITY, IA 51104
Woodbury County (712) 255-8827
JEANNE K BATCHELLER ARNP
Nurse Practitioner (Obstetrics & Gynecology)
2730 PIERCE ST
SIOUX CITY, IA 51104
Woodbury County (712) 277-3141
EAR NOSE & THROAT CONSULTANTS & HEARING SERVICES PC
Otolaryngology
2730 PIERCE ST, SUITE 402
SIOUX CITY, IA 51104
Woodbury County (712) 252-5203
SANDEEP S GUPTA M.D.
Internal Medicine (Pulmonary Disease)
2730 PIERCE ST, SUITE 401
SIOUX CITY, IA 51104
Woodbury County (712) 255-8827
PIERCE STREET SAME DAY SURGERY, LC
Clinic/Center (Ambulatory Surgical)
2730 PIERCE ST
SIOUX CITY, IA 51104
Woodbury County (712) 294-7773
JAMES L. HARTJE M.D. P.C.
Internal Medicine (Gastroenterology)
2730 PIERCE ST, SUITE 403
SIOUX CITY, IA 51104
Woodbury County (712) 255-5835
PULMONARY ASSOCIATES, A PROFESSIONAL CORPORATION
Internal Medicine (Pulmonary Disease)
2730 PIERCE ST, SUITE 401
SIOUX CITY, IA 51104
Woodbury County (712) 255-8827

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 Hannah Dewald's NPI number?

The NPI number for Hannah Dewald is 1790040269. It was assigned to this individual provider in the NPPES registry on July 10, 2012.

Where is Hannah Dewald located?

Hannah Dewald practices at 2730 Pierce St Suite 201, Sioux City, IA 51104. The listed phone number is (712) 277-3141.

What is Hannah Dewald's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Hannah Dewald enrolled in Medicare?

Yes. Hannah Dewald 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 organizations bill Medicare for Hannah Dewald's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Hannah Dewald reassigns Medicare benefits to 2 organizations: Siouxland Obstetrics & Gynecology, P.C. (Sioux City, IA) and Siouxland Community Health Center (Sioux City, IA). 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 Hannah Dewald's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Hannah Dewald accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and Avera Health Plans and 3 other insurers list Hannah Dewald 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 Hannah Dewald affiliated with any hospitals?

According to CMS data, Hannah Dewald is affiliated with St Lukes Regional Medical Center and Buena Vista Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Hannah Dewald was last updated on October 18, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.