DIRK M NUENNINGHOFF MD
NPI 1538109053
Internal Medicine - Rheumatology in Portage, WI

NPI Status: Active since June 07, 2006

Contact Information

2977 COUNTY HWY CX
PORTAGE, WI
ZIP 53901
Phone: (608) 745-3399

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  • Individual
  • Male
  • Years of Experience 28
  • Internal Medicine
  • Rheumatology
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled
  • Medicare Quality Reporting

About DIRK NUENNINGHOFF

This page provides the complete NPI Profile along with additional information for Dirk Nuenninghoff, an internist established in Portage, Wisconsin with a medical specialization in Internal Medicine, focusing in rheumatology and more than 28 years of experience. He graduated from University Of Nebraska College Of Medicine in 1998. The healthcare provider is registered in the NPI registry with number 1538109053 assigned on June 2006. The practitioner's primary taxonomy code is 207RR0500X with license number 45438-020 (WI). The provider is registered as an individual and his NPI record was last updated August 2025.

NPI
1538109053
Provider Name
DIRK M NUENNINGHOFF MD
Gender
Male
Entity Type
Individual
Location Address
2977 COUNTY HWY CX PORTAGE, WI 53901
Location Phone
(608) 745-3399
Mailing Address
7974 UW HEALTH CT MIDDLETON, WI 53562
Medical School Name
UNIVERSITY OF NEBRASKA COLLEGE OF MEDICINE
Graduation Year
1998
Is Sole Proprietor?
No
Enumeration Date
06-07-2006
Last Update Date
08-04-2025
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An internist like Dirk Nuenninghoff is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

Secondary Locations

  • 1821 S Stoughton Rd
    Madison, WI 53716
    (608) 260-6000

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Internal Medicine Rheumatology

Taxonomy Code
207RR0500X
Type
Allopathic & Osteopathic Physicians
License No.
45438-020
License State
WI
Taxonomy Description
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Anthem Bronze Preferred/Broad 5000 (3 Free PCP Visits + $0 Select Drugs + Incentives) - POS
  • Anthem Bronze Preferred/Broad HSA (+ Incentives) - POS
  • Anthem Bronze Preferred/Broad Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
  • Anthem Gold Preferred/Broad 1000 ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
  • Anthem Gold Preferred/Broad Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
  • Anthem Heart Healthy Bronze Preferred/Broad 0 Med Ded ($0 Virtual PCP+$0 Select Drugs+Incentives) - POS
  • Anthem Silver Preferred/Broad 4000 (3 Free PCP Visits + $0 Select Drugs + Incentives) - POS
  • Anthem Silver Preferred/Broad 5300 (3 Free PCP Visits + $0 Select Drugs + Incentives) - POS
  • Anthem Silver Preferred/Broad Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
  • Dean Bronze $0 Copay PCP Visits - HMO
  • Dean Bronze Share - HMO
  • Dean Catastrophic - HMO
  • Dean Expanded Bronze Standard - HMO
  • Dean Focus Bronze $0 Copay PCP Visits - EPO
  • Dean Focus Bronze Share - EPO
  • Dean Focus Catastrophic - EPO
  • Dean Focus Expanded Bronze Standard - EPO
  • Dean Focus Gold HSA - EPO
  • Dean Focus Gold Share - EPO
  • Dean Focus Gold Standard - EPO
  • Dean Focus Silver $0 Copay PCP Visits - EPO
  • Dean Focus Silver Share - EPO
  • Dean Focus Silver Standard - EPO
  • Dean Gold HSA - HMO
  • Dean Gold Share - HMO
  • Dean Gold Standard - HMO
  • Dean Silver $0 Copay PCP Visits - HMO
  • Dean Silver Share - HMO
  • Dean Silver Standard - HMO

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
1538109053MEDICAID (05)WI 

Medicare Participation & PECOS Enrollment Status

Dirk Nuenninghoff is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Dirk Nuenninghoff is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 8022041433

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20050915001073

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Complete blood cell count (red cells, white blood cell, platelets), automated test

A complete blood cell count (CBC) is an automated test that measures different components of the blood, including red cells, white cells, and platelets. It helps assess overall health, detect disorders like anemia or infection, and monitor medical treatments.

This service was performed 200 times for 80 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

This service was performed 109 times for 63 patients

Established patient office or other outpatient visit, 30-39 minutes

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.

This service was performed 269 times for 178 patients

Established patient office or other outpatient visit, 40-54 minutes

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

This service was performed 31 times for 28 patients

Insertion of needle into vein for collection of blood sample

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

This service was performed 352 times for 147 patients

Manual urinalysis test with examination using microscope, automated

A manual urinalysis test with automated microscopic examination is a lab process that checks your urine for health indicators. It involves a machine scanning your sample to identify any abnormal elements, which can assist in diagnosing various conditions.

This service was performed 34 times for 28 patients

New patient office or other outpatient visit, 60-74 minutes

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

This service was performed 20 times for 20 patients

Red blood cell sedimentation rate, to detect inflammation, automated

The Red Blood Cell Sedimentation Rate is a test that helps detect inflammation in the body. It's automated, meaning a machine does the work. This test measures how fast red blood cells settle at the bottom of a tube in an hour. A faster rate may indicate inflammation.

This service was performed 12 times for 11 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $30.92 for a new patient copayment and $23.85 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 53901 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $123.69
  • Minimum New Patient Price $53.9
  • Maximum New Patient Price $163.24
  • Average New Patient Copayment $30.92
  • Minimum New Patient Copayment $13.47
  • Maximum New Patient Copayment $40.81

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $95.41
  • Minimum Established Patient Price $17.4
  • Maximum Established Patient Price $133.76
  • Average Established Patient Copayment $23.85
  • Minimum Established Patient Copayment $4.35
  • Maximum Established Patient Copayment $33.44

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Quality Reporting

The provider participated in CMS Quality Payment Program. The Quality Payment Program aims to improve population health, reduce costs and improve the care received by Medicare beneficiaries. The following quality measures meet Medicare's statistical reporting standards. Not all providers report the same information, because not all providers give the same services to patients. The quality information is just a snapshot of some the care providers give to their patients. Reporting more or less information is not a reflection of quality.

Quality Measure Performance Number of Patients
Colorectal Cancer Screening 38% 168
Percentage of adults 50-75 years of age who had appropriate screening for colorectal cancer
Pneumococcal Vaccination Status for Older Adults 89% 189
Percentage of patients 65 years of age and older who have ever received a pneumococcal vaccine
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan 21% 240
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous twelve months of the current encounter Normal Parameters: Age 18 years and older BMI >= 18.5 and < 25 kg/m2
Screening for Osteoporosis for Women Aged 65-85 Years of Age 69% 85
Percentage of female patients aged 65-85 years of age who ever had a central dual-energy X-ray absorptiometry (DXA) to check for osteoporosis

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Dirk Nuenninghoff is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
DIVINE SAVIOR HEALTHCARE2817 NEW PINERY ROAD
PORTAGE, WI 53901
(608) 742-4131Acute Care Hospitals
SSM HEALTH ST CLARE HOSPITAL - BARABOO707 14TH ST
BARABOO, WI 53913
(608) 356-1400Acute Care Hospitals
SSM HEALTH ST MARY'S HOSPITAL - MADISON700 SOUTH PARK ST
MADISON, WI 53715
(608) 251-6100Acute Care Hospitals

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1538109053
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
25682018010
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 5 + 6 + 8 + 2 + 0 + 1 + 8 + 0 + 1 + 0 + 24 = 57
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
60 - 57 = 33

The NPI number 1538109053 is valid because the calculated check digit 3 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 5 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1124041728 RICHARD J QUALY MD
Individual
Family Medicine2977 COUNTY HWY CX
PORTAGE, WI 53901
(608) 742-3004
1437389251 JOE J WANGERIN PHYSICIAN ASSISTANT
Individual
Physician Assistant (Medical)2977 COUNTY HWY CX
PORTAGE, WI 53901
(608) 742-3004
1558625350 HEMA MAURKUMAR PATEL MD
Individual
Family Medicine2977 COUNTY HWY CX
PORTAGE, WI 53901
(608) 742-3004
1285602367 EMILY HEDWIG LEWIS MD
Individual
Radiology (Diagnostic Radiology)2977 COUNTY HWY CX
PORTAGE, WI 53901
(608) 839-3104
1184683310DR. JAMIE JOHN KLING DO
Individual
Family Medicine2977 COUNTY HWY CX
PORTAGE, WI 53901
(608) 742-3004

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1538109053, enumerated in the NPI registry as an "individual" on June 07, 2006

The provider is located at 2977 County Hwy Cx Portage, Wi 53901 and the phone number is (608) 745-3399

The provider's speciality is Internal Medicine with taxonomy code 207RR0500X with a focus in Rheumatology

The provider has more than 28 years of experience. He graduated from University Of Nebraska College Of Medicine in 1998.

The provider might be accepting Accepts: Anthem Blue Cross and Blue Shield, Dean Health. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

Medicare beneficiaries should expect a typical cost of $123.69 with an average copayment of $30.92 for new patient appointments. Established patients should expect a typical charge of $95.41 and an average copayment of 23.85. Please review your insurance plan or contact the provider directly to determine your specific costs.

The most common procedures or services performed by this practitioner are: Complete blood cell count (red cells, white blood cell, platelets), automated test, Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count, Established patient office or other outpatient visit, 30-39 minutes, Established patient office or other outpatient visit, 40-54 minutes, Insertion of needle into vein for collection of blood sample, Manual urinalysis test with examination using microscope, automated, New patient office or other outpatient visit, 60-74 minutes and Red blood cell sedimentation rate, to detect inflammation, automated.

The practitioner is affiliated to the following hospital(s): DIVINE SAVIOR HEALTHCARE, SSM HEALTH ST CLARE HOSPITAL - BARABOO and SSM HEALTH ST MARY'S HOSPITAL - MADISON. Hospital affiliations are identified through self-reporting data and service claims based on the place of service.

This NPI record was last updated on June 07, 2006. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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