DAVID LEE HALLER MD
NPI 1548214463
Internal Medicine - Gastroenterology in Fond Du Lac, WI

Q: What is David Haller's NPI number?

The NPI number for David Haller is 1548214463. It was assigned to this individual provider in the NPPES registry on May 22, 2006.

Q: What is David Haller's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for David Haller was last updated on December 2, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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 May 22, 2006PECOS Enrolled

420 E DIVISION ST, FOND DU LAC, WI 54935(920) 926-8570(920) 926-8923 Get Directions Write a Review

NPPES record last updated: December 2, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About David Lee Haller Md NPPES

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

DAVID LEE HALLER MD (NPI 1548214463) is an individual gastroenterology provider in Fond Du Lac, Wisconsin, licensed in Wisconsin (43137-020) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1548214463

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDAVID LEE HALLERCredential: MD

Location Address420 E DIVISION STFond Du Lac, WI 54935-4560

Mailing Address420 E Division StFond Du Lac, WI 54935-4560 · (920) 926-8570 · Fax (920) 926-8923

Phone(920) 926-8570

Fax(920) 926-8923

Sole ProprietorNo

Enumeration DateMay 22, 2006

Last NPPES UpdateDecember 2, 2020

NPPES CertifiedAugust 21, 2020

✔ NPI 1548214463 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in WI · 43137-020

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

420 E DIVISION ST, Fond Du Lac, WI 54935

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Other Identifiers 1

Medicaid34061900WI

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

David Lee Haller Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show David Haller reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Agnesian Healthcare Inc

Same address

Family Medicine

420 E DIVISION ST
Fond Du Lac, WI 54935

Reassigned Medicare billing, Wisconsin enrollment
606 clinicians in this Medicare group

NPI 1730162991 (920) 923-7400

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 7

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.

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

53 services44 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

27 services25 patients

Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm 43249

This procedure involves using a flexible tube with a camera, called an endoscope, to gently expand narrowed areas in your esophagus, stomach, or upper small bowel. A small balloon is inflated, making it easier for food and liquid to pass through. It's safe and effective.

26 services21 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

20 services20 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

18 services18 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

18 services18 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54935 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$123.69 typical visit price

range $53.90 – $163.24

Typical copayment $30.92 (range $13.47 – $40.81)

Most-billed visit code 99204

Established Patient

$95.41 typical visit price

range $17.40 – $133.76

Typical copayment $23.85 (range $4.35 – $33.44)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

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

MARY R KELM NP

Nurse Practitioner