DR. BENJAMIN J DUFFY D.O.
NPI 1144210857
Internal Medicine - Obesity Medicine in Neenah, WI

Q: What is Benjamin Duffy's NPI number?

The NPI number for Benjamin Duffy is 1144210857. It was assigned to this individual provider in the NPPES registry on October 25, 2005.

Q: What is Benjamin Duffy's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Obesity Medicine, with taxonomy code 207RB0002X.

Q: When was this NPI record last updated?

The NPPES record for Benjamin Duffy was last updated on June 6, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since October 25, 2005PECOS EnrolledAccepts Medicare Assignment

200 THEDA CLARK MEDICAL PLZ STE 420, NEENAH, WI 54956(920) 720-7211 Get Directions Write a Review

NPPES record last updated: June 6, 2024. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 6, 2024, Apr 2, 2024, Mar 17, 2018 and 1 more (4 updates tracked since 2017).

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About Dr. Benjamin J Duffy D.o. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. BENJAMIN J DUFFY D.O. (NPI 1144210857) is an individual obesity medicine provider in Neenah, Wisconsin, licensed in Wisconsin (48370-021) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with Thedacare Regional Med Ctr - Neenah, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1144210857

Entity TypeIndividualMale

Primary Taxonomy207RB0002X

Provider Legal NameDR. BENJAMIN J DUFFYCredential: D.O.

Location Address200 THEDA CLARK MEDICAL PLZ STE 420Neenah, WI 54956-2771

Mailing Address3 Neenah CtrNeenah, WI 54956-3070 · (920) 720-7211

Phone(920) 720-7211

Sole ProprietorNo

Medical School CMSOtherGraduated 2003

Enumeration DateOctober 25, 2005

Last NPPES UpdateJune 6, 20244 updates tracked since enumeration

NPPES CertifiedJune 4, 2024

✔ NPI 1144210857 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Obesity MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RB0002X

License✔ Licensed in WI · 48370-021

Definition

An internal medicine physician who specializes in the treatment of obesity demonstrates competency in and a thorough understanding of the treatment of obesity and the genetic, biologic, environmental, social, and behavioral factors that contribute to obesity. The obesity medicine physician employs therapeutic interventions including diet, physical activity, behavioral change, and pharmacotherapy. The obesity medicine physician utilizes a comprehensive approach, and may include additional resources such as dietitians, exercise physiologists, mental health professionals and bariatric surgeons as indicated to achieve optimal results. Additionally, the obesity medicine physician maintains competency in providing pre- peri- and post-surgical care of bariatric surgery patients, promotes the prevention of obesity, and advocates for those who suffer from obesity.

Also ListedInternal MedicineTaxonomy 207R00000X · License 48370-021 (WI)

Also ListedHospitalistTaxonomy 208M00000X · License 48370 (WI)

200 THEDA CLARK MEDICAL PLZ STE 420, Neenah, WI 54956

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Secondary Practice Locations 3

Location 11818 N Meade StAppleton, WI 54911-3454 · Phone (920) 735-7645 · Fax (920) 735-7618

Location 23851 Roger Brooke DrSan Antonio, TX 78234-4501 · Phone (210) 916-4678

Location 3130 2nd StNeenah, WI 54956-2883 · Phone (920) 729-2738 · Fax (920) 729-3021

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource (Common Ground Healthcare).Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Benjamin J Duffy D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2961557772

PECOS Enrollment IDI20090831000558

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

30 services20 patients

Hospital discharge day management, 30 minutes or less 99238

Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.

13 services13 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Thedacare Regional Med Ctr - Neenah

Acute Care Hospitals · Neenah, WI

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520045

Location130 2nd StNeenah, WI 54956 · Winnebago County

Emergency services Birthing friendly

Thedacare Regional Medical Center - Appleton Inc

Acute Care Hospitals · Appleton, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520160

Location1818 N Meade StAppleton, WI 54911 · Outagamie County

Emergency services Birthing friendly

Thedacare Medical Center-Waupaca

Critical Access Hospitals · Waupaca, WI

OwnershipVoluntary non-profit - Private

CMS Certification Number521334

Location800 Riverside DriveWaupaca, WI 54981 · Waupaca County

Emergency services Birthing friendly

Berlin Memorial Hospital

Critical Access Hospitals · Berlin, WI

OwnershipVoluntary non-profit - Private

CMS Certification Number521355

Location225 Memorial DriveBerlin, WI 54923 · Green Lake County

Emergency services Birthing friendly

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BETSY R WINNEKENS APNP

Nurse Practitioner

200 THEDA CLARK MEDICAL PLZ STE 420
NEENAH, WI 54956

Winnebago County (920) 720-7211

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Benjamin Duffy's NPI number?

The NPI number for Benjamin Duffy is 1144210857. It was assigned to this individual provider in the NPPES registry on October 25, 2005.

Where is Benjamin Duffy located?

Benjamin Duffy practices at 200 Theda Clark Medical Plz Ste 420, Neenah, WI 54956. The listed phone number is (920) 720-7211.

What is Benjamin Duffy's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Obesity Medicine, with taxonomy code 207RB0002X.

Is Benjamin Duffy enrolled in Medicare?

Yes. Benjamin Duffy is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Benjamin Duffy accept?

Health plans from CareSource (Common Ground Healthcare) list Benjamin Duffy as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Benjamin Duffy affiliated with any hospitals?

According to CMS data, Benjamin Duffy is affiliated with Thedacare Regional Med Ctr - Neenah, Thedacare Regional Medical Center - Appleton Inc, Thedacare Medical Center-Waupaca and Berlin Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Benjamin Duffy was last updated on June 6, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.