Siouxland Vein Center PC
NPI 1457687782 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Sioux City, IA
Siouxland Vein Center PC is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician organization in Sioux City, IA (NPI 1457687782).
Provider details
- NPI number
- 1457687782
- Entity type
- Organization
- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Mark Nielsen, MD(712) 271-8346
- License
- 30608 (IA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-10-21
- Last updated
- 2009-10-21
Frequently asked questions
- What is Siouxland Vein Center PC's NPI number?
- Siouxland Vein Center PC's National Provider Identifier (NPI) is 1457687782, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Siouxland Vein Center PC?
- Siouxland Vein Center PC is classified in the NPPES registry as Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Siouxland Vein Center PC located?
- Siouxland Vein Center PC's practice location on file with NPPES is 4630 Singing Hills Blvd, Sioux City, IA 51106-9702.
- What is Siouxland Vein Center PC's phone number?
- The practice phone number listed in the NPPES registry for Siouxland Vein Center PC is (712) 271-8346.
- Who is the authorized official for Siouxland Vein Center PC?
- The authorized official listed on Siouxland Vein Center PC's NPPES record is Mark Nielsen, MD. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Siouxland Vein Center PC's NPI active?
- Yes — Siouxland Vein Center PC's NPI (1457687782) is active in the NPPES registry as of the last update on 2009-10-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.