STEVEN SONNAMAKER MD
NPI 1003345323
Emergency Medicine in Bismarck, ND

Q: What is Steven Sonnamaker's NPI number?

The NPI number for Steven Sonnamaker is 1003345323. It was assigned to this individual provider in the NPPES registry on June 9, 2017.

Q: What is Steven Sonnamaker's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Q: When was this NPI record last updated?

The NPPES record for Steven Sonnamaker was last updated on May 3, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since June 09, 2017PECOS Enrolled

75/100

CMS Quality Rating

300 N 7TH ST, BISMARCK, ND 58501(701) 323-6000 Get Directions Write a Review

NPPES record last updated: May 3, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 3, 2024, Jul 21, 2022, Jun 29, 2020 and 1 more (4 updates tracked since 2017).

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About Steven Sonnamaker Md NPPES

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

STEVEN SONNAMAKER MD (NPI 1003345323) is an individual emergency medicine provider in Bismarck, North Dakota, licensed in North Dakota (16394) and active in the NPI registry since June 2017. He is enrolled in Medicare PECOS and maintains a secondary practice location in Royal Oak.

NPPES Registry Identity

NPI1003345323

Entity TypeIndividualMale

Primary Taxonomy207P00000X

Provider Legal NameSTEVEN SONNAMAKERCredential: MD

Location Address300 N 7TH STBismarck, ND 58501-4439

Mailing AddressPo Box 5074Sioux Falls, SD 57117-5074 · (605) 328-9419

Phone(701) 323-6000

Sole ProprietorNo

Enumeration DateJune 9, 2017

Last NPPES UpdateMay 3, 20244 updates tracked since enumeration

NPPES CertifiedMay 3, 2024

✔ NPI 1003345323 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

Licenses✔ Licensed in ND · 16394✔ Licensed in MI · 4301112415

Definition

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

300 N 7TH ST, Bismarck, ND 58501

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Secondary Practice Location 1

Location 13601 W 13 Mile RdRoyal Oak, MI 48073-6712 · Phone (248) 898-2001

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of North Dakota.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Steven Sonnamaker Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

Medicare enrollment records show Steven Sonnamaker reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Healthsource Partners Nd LLC

0.2 mi

Emergency Medicine

900 E BROADWAY AVE
Bismarck, ND 58501

Reassigned Medicare billing, North Dakota enrollment
40 clinicians in this Medicare group

NPI 1235619545 (701) 530-7000

Sanford Bismarck

0.7 mi

Multi-Specialty

565 S 7TH ST
Bismarck, ND 58504

Reassigned Medicare billing, North Dakota enrollment
779 clinicians in this Medicare group

NPI 1811941172 (701) 323-5550

Mercy Hospital Of Devils Lake

127 mi

Clinic/Center

425 COLLEGE DR S STE 14
Devils Lake, ND 58301

Reassigned Medicare billing, North Dakota enrollment
Also billed through NPI 1659343093 (North Dakota)
102 clinicians in this Medicare group

NPI 1184117293 (701) 662-8662

Mercy Medical Center

163 mi

Nurse Anesthetist, Certified Registered

1301 15TH AVE W
Williston, ND 58801

Reassigned Medicare billing, North Dakota enrollment
Also billed through NPI 1902824576 (North Dakota)
268 clinicians in this Medicare group

NPI 1700990041 (701) 774-7470

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 4

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.

Emergency department visit with high level of medical decision making 99285

An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.

214 services208 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

123 services119 patients

Emergency department visit with moderate level of medical decision making 99284

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

39 services39 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

33 services33 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 58501 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

$85.71 typical visit price

range $55.75 – $168.12

Typical copayment $21.42 (range $13.93 – $42.03)

Most-billed visit code 99203

Established Patient

$98.29 typical visit price

range $18.11 – $137.65

Typical copayment $24.57 (range $4.52 – $34.41)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

75/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

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.

MOLLY HELBLING

Occupational Therapist