Dr. Mark Oppenheimer, MD
Internal Medicine · Sioux Falls, SD
Independent provider — not employed by, affiliated with, or endorsed by Ondoc. Listed only so patients can identify the clinician who previously treated or prescribed for them.
- NPI
- 1689640187
- Primary specialty
- Internal Medicine
- Registered location
- 3926 S Western Ave, Sioux Falls, SD, 571056513
Why this page exists
Ondoc mirrors the public CMS NPPES registry so you can tell us exactly who last saw you or who prescribed your medicine. Selecting Dr. Mark Oppenheimer, MD attaches that identity to your request for continuity of care. Any refill you request is reviewed and issued by an Ondoc-licensed provider — not by Dr. Mark Oppenheimer, MD.
Nearby on Ondoc
Source: Public NPPES NPI Registry, maintained by the Centers for Medicare & Medicaid Services (CMS). Independent providers are listed for patient reference so Ondoc users can identify a previous prescriber or send a referral. Listing does not imply employment, endorsement, or a contractual relationship with Ondoc.