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Source: CMS NPI registry

GLP‑1Centers

Benjamin Duffy, DO

Internal Medicine, Bariatric Medicine

NPI verified
Practice location
200 Theda Clark Medical Plz Ste 420, Neenah, WI 54956 View on map →
NPI number
1144210857
Provider type
Individual provider · registered 2005 (21 years in the registry)
State licenses
WI · 48370-021WI · 48370

Additional locations

  • 3851 Roger Brooke Dr, San Antonio, TX 78234(210) 916-4678
  • 130 2nd St, Neenah, WI 54956(920) 729-2738
  • 1818 N Meade St, Appleton, WI 54911(920) 735-7645

Registered specialties

  • Internal Medicine
  • Hospitalist
  • Internal Medicine, Bariatric Medicine

Record provenance

Details are drawn from this provider's public record in the CMS National Provider Identifier registry, which CMS last updated on June 6, 2024. Registry specialty indicates the care a provider is registered to deliver — it is not confirmation that this practice currently prescribes GLP‑1 medications. Call to confirm current services, availability, and pricing.

View the source record at CMS ↗ How listings are built Report an error

What bariatric medicine means

Bariatric medicine centers on the medical (non-surgical) treatment of obesity: supervised weight-loss programs, prescription medications including GLP-1 receptor agonists, and long-term metabolic follow-up. Some bariatric practices also coordinate with or provide weight-loss surgery; ask whether this clinic's program is medical, surgical, or both.

Asking about GLP‑1 treatment at Benjamin Duffy

Call (920) 720-7211 and ask these questions before booking:

  • ✓Do you currently prescribe GLP‑1 medications (semaglutide or tirzepatide) for weight loss?
  • ✓Do you work with my insurance, or is the program cash-pay — and what does a month cost all-in?
  • ✓Is the medication a brand-name product, or compounded by a compounding pharmacy?
  • ✓What follow-up is included for dose changes and side effects?

About compounded medications: A compounded drug is prepared by a state-licensed compounding pharmacy. Compounded drugs are not FDA-approved and are not reviewed by the FDA for safety, effectiveness, or quality, and they are not the same as FDA-approved generic drugs. Ask any practice which it dispenses and which pharmacy prepares it.

Other GLP‑1 providers in Neenah

See all 6 clinics in Neenah →