Midwestern Endocrinology Ltd
NPI 1942230636 · Endocrinology, Diabetes & Metabolism Physician · Sioux Falls, SD
Midwestern Endocrinology Ltd is a Endocrinology, Diabetes & Metabolism Physician organization in Sioux Falls, SD (NPI 1942230636).
Provider details
- NPI number
- 1942230636
- Entity type
- Organization
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Mark Oppenheimer, Owner/Provider(605) 275-6525
- License
- 0439 (SD)
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
20 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
- 2006-07-05
- Last updated
- 2013-02-21
Frequently asked questions
- What is Midwestern Endocrinology Ltd's NPI number?
- Midwestern Endocrinology Ltd's National Provider Identifier (NPI) is 1942230636, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Midwestern Endocrinology Ltd?
- Midwestern Endocrinology Ltd is classified in the NPPES registry as Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Midwestern Endocrinology Ltd located?
- Midwestern Endocrinology Ltd's practice location on file with NPPES is 3926 S Western Ave, Sioux Falls, SD 57105-6513.
- What is Midwestern Endocrinology Ltd's phone number?
- The practice phone number listed in the NPPES registry for Midwestern Endocrinology Ltd is (605) 275-6525.
- Who is the authorized official for Midwestern Endocrinology Ltd?
- The authorized official listed on Midwestern Endocrinology Ltd's NPPES record is Mark Oppenheimer, Owner/Provider. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Midwestern Endocrinology Ltd's NPI active?
- Yes — Midwestern Endocrinology Ltd's NPI (1942230636) is active in the NPPES registry as of the last update on 2013-02-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.