JOHN MICHAEL HALWIG MD
NPI 1841230760
Allergy & Immunology - Allergy in Austell, GA

NPI Status: Active since June 08, 2006

Contact Information

1620 MULKEY RD
STE 100
AUSTELL, GA
ZIP 30106
Phone: (770) 953-3331
Fax: (770) 739-9609

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  • Individual
  • Male
  • Allergy & Immunology
  • Allergy
  • PECOS Enrolled

About JOHN HALWIG

This page provides the complete NPI Profile along with additional information for John Halwig, a provider established in Austell, Georgia with a medical specialization in Allergy & Immunology, focusing in allergy . The healthcare provider is registered in the NPI registry with number 1841230760 assigned on June 2006. The practitioner's primary taxonomy code is 207KA0200X with license number 27558 (GA). The provider is registered as an individual and his NPI record was last updated 6 years ago.

NPI
1841230760
Provider Name
JOHN MICHAEL HALWIG MD
Gender
Male
Entity Type
Individual
Location Address
1620 MULKEY RD STE 100 AUSTELL, GA 30106
Location Phone
(770) 953-3331
Location Fax
(770) 739-9609
Mailing Address
8200 ROBERTS DR STE 450 SANDY SPRINGS, GA 30350
Mailing Phone
(770) 952-8612
Mailing Fax
(770) 739-9609
Is Sole Proprietor?
No
Enumeration Date
06-08-2006
Last Update Date
11-12-2020
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Location Map

Secondary Locations

  • 4645 Timber Ridge Dr Ste 160
    Douglasville, GA 30135
    (770) 953-3331

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

Allergy & Immunology Allergy

Taxonomy Code
207KA0200X
Type
Allopathic & Osteopathic Physicians
License No.
27558
License State
GA
Taxonomy Description
A physician who specializes in the diagnosis, treatment, and management of allergies. Source: National Uniform Claim Committee

Medicare Participation & PECOS Enrollment Status

John Halwig 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

  • 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

Provider Referred Orders for Durable Medical Equipment, Devices & Supplies

The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.

Durable Medical Equipment

  • DME-Other DME (DE000N)

    Nebulizer, with compressor (HCPCS:E0570)

    1 DME suppliers used 19 Medicare Claims 19 Services Paid

Unknown

  • Treatment-Injections and Infusions (nononcologic) (RI008N)

    Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mg (HCPCS:J1569)

    3 DME suppliers used 27 Medicare Claims 4800 Services Paid

  • Treatment-Chemotherapy (RH012N)

    Services, supplies and accessories used in the home under the medicare intravenous immune globulin (ivig) demonstration (HCPCS:Q2052)

    1 DME suppliers used 12 Medicare Claims 12 Services Paid

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.

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 113 times for 86 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 95 times for 73 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 18 times for 18 patients

New patient office or other outpatient visit, 45-59 minutes

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

This service was performed 14 times for 14 patients

Professional service for multiple injections of allergen

The professional service for multiple injections of allergens involves administering small doses of specific allergens into your body. This is done to help your immune system become less sensitive to them, reducing your allergic reaction over time. It's a safe, effective way to manage allergies.

This service was performed 789 times for 67 patients

Professional service for preparation and provision of 1 or more antigens

This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.

This service was performed 109 times for 11 patients

Test for allergy using allergenic extract

An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.

This service was performed 1,264 times for 23 patients

Test for allergy using allergenic extract injected into skin

An allergy skin test involves injecting a small amount of allergenic extract into your skin. This test helps determine if you're allergic to specific substances. If allergic, a small red bump appears at the test site. It's safe and quick.

This service was performed 226 times for 17 patients

Test to measure expiratory airflow and volume

This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.

This service was performed 169 times for 85 patients

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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 1841230760, we treat the final digit (0) 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).

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
8
Unchanged
Pos 3
4
Doubled → 8
Pos 4
1
Unchanged
Pos 5
2
Doubled → 4
Pos 6
3
Unchanged
Pos 7
0
Doubled → 0
Pos 8
7
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
0
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 4 → 8 2 → 4 0 → 0 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 8 + 1 + 4 + 3 + 0 + 7 + 1 + 2 + 24 = 60

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

The next multiple of ten after 60 is 60. The difference is the calculated check digit.

60 - 60 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1841230760.

Other Providers at the Same Location


The following 4 providers are registered at the same or a nearby location.

Allergy & Immunology
1620 MULKEY RD, STE 100
AUSTELL, GA 30106
Dentist
1620 MULKEY RD, SUITE 200
AUSTELL, GA 30106
Nurse Practitioner
1620 MULKEY RD, SUITE 100
AUSTELL, GA 30106
Nurse Practitioner (Family)
1620 MULKEY RD, STE 100
AUSTELL, GA 30106

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1841230760, enumerated as an "individual" on June 08, 2006.

The provider is located at 1620 MULKEY RD STE 100 AUSTELL, GA 30106 and the phone number is (770) 953-3331.

Allergy & Immunology with taxonomy code 207KA0200X and a focus in Allergy.