STEFAN V ZACHARY DO MS
NPI 1104881895
Orthopaedic Surgery - Hand Surgery in Madison, WI

NPI Status: Active since April 18, 2006

Contact Information

600 HIGHLAND AVE
MADISON, WI
ZIP 53792
Phone: (608) 263-7540
Fax: (608) 833-6932

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  • Individual
  • Male
  • Orthopaedic Surgery
  • Hand Surgery

About STEFAN ZACHARY

This page provides the complete NPI Profile along with additional information for Stefan Zachary, a provider established in Madison, Wisconsin with a medical specialization in Orthopaedic Surgery, focusing in hand surgery . The healthcare provider is registered in the NPI registry with number 1104881895 assigned on April 2006. The practitioner's primary taxonomy code is 207XS0106X with license number 37389-21 (WI). The provider is registered as an individual and his NPI record was last updated March 2026.

NPI
1104881895
Provider Name
STEFAN V ZACHARY DO MS
Gender
Male
Entity Type
Individual
Location Address
600 HIGHLAND AVE MADISON, WI 53792
Location Phone
(608) 263-7540
Location Fax
(608) 833-6932
Mailing Address
7974 UW HEALTH CT MIDDLETON, WI 53562
Is Sole Proprietor?
No
Enumeration Date
04-18-2006
Last Update Date
03-17-2026
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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

Orthopaedic Surgery Hand Surgery

Taxonomy Code
207XS0106X
Type
Allopathic & Osteopathic Physicians
License No.
37389-21
License State
WI
Taxonomy Description
An orthopaedic surgeon trained in the investigation, preservation and restoration by medical, surgical and rehabilitative means of all structures of the upper extremity directly affecting the form and function of the hand and wrist.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207X00000XAllopathic & Osteopathic Physicians

Orthopaedic Surgery

37389 (WI)

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.

Aspiration and/or injection of fluid from small joint

This procedure involves inserting a thin needle into a small joint to remove (aspirate) or inject fluid. It can help diagnose conditions, relieve discomfort, or administer medication directly into the joint. It's generally safe with minimal discomfort.

This service was performed 24 times for 15 patients

Established patient office or other outpatient visit, 10-19 minutes

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

This service was performed 32 times for 30 patients

Established patient office or other outpatient visit, 10-19 minutes

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

This service was performed 15 times for 15 patients

Established patient office or other outpatient visit, 20-29 minutes

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.

This service was performed 21 times for 17 patients

Established patient office or other outpatient visit, 20-29 minutes

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.

This service was performed 57 times for 54 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 27 times for 26 patients

Incision of tendon covering of finger

This procedure involves making a small cut into the protective sheath around a finger tendon. It's typically done to relieve pressure or inflammation, improve finger movement, or treat conditions like trigger finger. It's a safe, often outpatient procedure.

This service was performed 37 times for 27 patients

Injection into tendon or ligament

An injection into a tendon or ligament involves placing medication directly into these areas to help reduce inflammation and pain. It's often used for conditions like arthritis or tendonitis. The procedure is quick and usually involves a local anesthetic.

This service was performed 28 times for 20 patients

Injection of medication into palm

An injection into the palm is a procedure where a healthcare provider inserts a small needle into your palm to deliver medication. This method targets specific areas, aiding in pain relief or treatment of certain conditions. The process is quick and is usually done under local anesthesia.

This service was performed 17 times for 14 patients

Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg

This injection contains two medications, betamethasone acetate and betamethasone sodium phosphate. It is used to reduce inflammation and pain. It's given by a healthcare professional, often directly into the area causing discomfort.

This service was performed 68 times for 40 patients

Injection, collagenase, clostridium histolyticum, 0.01 mg

This is an injection of a medication called collagenase clostridium histolyticum, used to treat certain medical conditions by breaking down collagen, a protein in the body. It helps to dissolve excess collagen and improve your condition.

This service was performed 1,440 times for 14 patients

Manipulation of finger for connective tissue release following enzyme injection

This procedure involves injecting an enzyme into your finger to soften the connective tissue. Following the injection, your doctor will gently manipulate or move your finger. This helps to break down hardened tissue, improving finger mobility and reducing discomfort.

This service was performed 13 times for 12 patients

New patient office or other outpatient visit, 15-29 minutes

This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.

This service was performed 14 times for 14 patients

New patient office or other outpatient visit, 30-44 minutes

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

This service was performed 13 times for 13 patients

Release and/or relocation of hand nerve

This procedure involves adjusting or moving a nerve in your hand to alleviate discomfort or improve function. The nerve may be compressed, causing pain or numbness. By releasing or relocating the nerve, these symptoms can be reduced, enhancing hand usage.

This service was performed 35 times for 35 patients

Removal of bone joints between wrist and fingers

This procedure involves the surgical removal of bone joints between your wrist and fingers. It's typically done to relieve pain or restore function due to conditions like arthritis. After removal, the space may be filled with a graft or artificial joint.

This service was performed 11 times for 11 patients

Transfer of tendon to back of hand

A transfer of tendon to the back of the hand is a surgical procedure aimed at improving hand function. It involves moving a healthy tendon from one area to another to replace a damaged or non-functioning one, helping to restore movement and strength.

This service was performed 11 times for 11 patients

Reviews for STEFAN V ZACHARY DO MS

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1104881895, we treat the final digit (5) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
1
Unchanged
Pos 3
0
Doubled → 0
Pos 4
4
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
8
Unchanged
Pos 7
1
Doubled → 2
Pos 8
8
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
5
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 0 → 0 8 → 16 → 7 1 → 2 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 1 + 0 + 4 + 1 + 6 + 8 + 2 + 8 + 1 + 8 + 24 = 65

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1104881895.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Emergency Medicine
600 HIGHLAND AVE
MADISON, WI 53792
Radiology (Diagnostic Radiology)
600 HIGHLAND AVE
MADISON, WI 53792
Neurological Surgery
600 HIGHLAND AVE
MADISON, WI 53792
Psychiatry & Neurology (Neurology)
600 HIGHLAND AVE
MADISON, WI 53792
Psychiatry & Neurology (Neurology)
600 HIGHLAND AVE
MADISON, WI 53792
Nurse Practitioner
600 HIGHLAND AVE
MADISON, WI 53792
Radiology (Diagnostic Radiology)
600 HIGHLAND AVE
MADISON, WI 53792
Physician Assistant
600 HIGHLAND AVE
MADISON, WI 53792
Nurse Anesthetist, Certified Registered
600 HIGHLAND AVE
MADISON, WI 53792
Radiology (Radiation Oncology)
600 HIGHLAND AVE
MADISON, WI 53792
Anesthesiology
600 HIGHLAND AVE
MADISON, WI 53792
Anesthesiology
600 HIGHLAND AVE
MADISON, WI 53792
Anesthesiology
600 HIGHLAND AVE
MADISON, WI 53792
Nurse Anesthetist, Certified Registered
600 HIGHLAND AVE
MADISON, WI 53792
Nurse Anesthetist, Certified Registered
600 HIGHLAND AVE
MADISON, WI 53792
Nurse Anesthetist, Certified Registered
600 HIGHLAND AVE
MADISON, WI 53792
Nurse Anesthetist, Certified Registered
600 HIGHLAND AVE
MADISON, WI 53792
Anesthesiology
600 HIGHLAND AVE
MADISON, WI 53792
Anesthesiology
600 HIGHLAND AVE
MADISON, WI 53792
Internal Medicine (Medical Oncology)
600 HIGHLAND AVE
MADISON, WI 53792

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1104881895, enumerated as an "individual" on April 18, 2006.

The provider is located at 600 HIGHLAND AVE MADISON, WI 53792 and the phone number is (608) 263-7540.

Orthopaedic Surgery with taxonomy code 207XS0106X and a focus in Hand Surgery.