Mark Oppenheimer is an Endocrinology/Metabolic physician. OpenAlex indexes 20 publications with 434 citations (h-index 9).
Overview
Scholarship
indexed output and impact (OpenAlex)Distinct works indexed by OpenAlex, matched via ORCID.
Total citations across indexed works.
Hirsch index, productivity × impact (OpenAlex).
Contact
The practice address and phone this provider lists in the federal NPPES (CMS) registry.
Practice address
3926 S Western Ave
Sioux Falls, SD 571056513
Telephone
605-275-6525Registry record last updated 21 Feb 2013.
Medicare prescribing footprint (2022)
The drugs this prescriber writes for Medicare patients, grouped by drug class and therapeutic area. Every percentage is a share of their total prescribing, so you can see what they prescribe most. These are proportions, not patient counts or dollar amounts. No condition is inferred: the claims record what was prescribed, never why.
Hormonal (systemic)
48.4%l-Thyroxine48.4%Synthroid55%Levothyroxine Sodium45%Part D≥24 patientsMetabolism & gastrointestinal
34.2%Insulins and analogues for injection, intermediate-acting10.3%Novolin N100%Part D<11 patientsBiguanide (metformin)8.7%Metformin Hcl100%Part D<11 patients+ 2 more classes in this area
Cardiovascular
17.4%Statin10.3%Atorvastatin Calcium100%Part D<11 patientsACE inhibitor7.1%Lisinopril100%Part D<11 patients
Drug classes come from the WHO ATC and U.S. National Library of Medicine (RxClass) classifications; prescribing counts come from the CMS Medicare Part D Prescribers file. Each drug is counted once, under its primary class. Medicare fee-for-service only, so no Medicare Advantage, commercial, or pediatric prescribing is included. CMS publishes this data about 17 months after the fact.
Publications
Matched to this physician's OpenAlex author record; most-cited works shown first.
- Anxiety-like behavior during protracted morphine withdrawal is driven by gut microbial dysbiosis and attenuated with probiotic treatment
bioRxiv (Cold Spring Harbor Laboratory)
2025 - Sleep Delta power, age, and sex effects in treatment-resistant depression
Journal of Psychiatric Research
2024
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A basic profile from our physician directory: identity and practice contact from the federal NPPES registry, research from OpenAlex, trials from ClinicalTrials.gov, payments from CMS Open Payments — shown itemized where we have matched records, as a count where we only have a total. This person hasn't been through our full identity-adjudication pipeline yet, so funding, congress activity and public presence aren't shown. Absence of a section means “not yet looked,” never “none found.”