DR. MARK LEWIS VANDEWALKER M.D.
NPI 1386833358
Allergy & Immunology - Allergy in Columbia, MO

NPI Status: Active since October 16, 2007

Contact Information

601 W NIFONG BLVD
SUITE 2B
COLUMBIA, MO
ZIP 65203
Phone: (573) 446-7000
Fax: (573) 445-1000

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  • Individual
  • Male
  • Years of Experience 52
  • Allergy & Immunology
  • Allergy
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About MARK VANDEWALKER

This page provides the complete NPI Profile along with additional information for Mark Vandewalker, a provider established in Columbia, Missouri with a medical specialization in Allergy & Immunology, focusing in allergy and more than 52 years of experience. He graduated from Washington University School Of Medicine in 1974. The healthcare provider is registered in the NPI registry with number 1386833358 assigned on October 2007. The practitioner's primary taxonomy code is 207KA0200X with license number R2F17 (MO). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1386833358
Provider Name
DR. MARK LEWIS VANDEWALKER M.D.
Gender
Male
Entity Type
Individual
Location Address
601 W NIFONG BLVD SUITE 2B COLUMBIA, MO 65203
Location Phone
(573) 446-7000
Location Fax
(573) 445-1000
Mailing Address
601 W NIFONG BLVD SUITE 2B COLUMBIA, MO 65203
Mailing Phone
(573) 446-7000
Mailing Fax
(573) 445-1000
Medical School Name
WASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduation Year
1974
Is Sole Proprietor?
No
Enumeration Date
10-16-2007
Last Update Date
10-16-2007
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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

Allergy & Immunology Allergy

Taxonomy Code
207KA0200X
Type
Allopathic & Osteopathic Physicians
License No.
R2F17
License State
MO
Taxonomy Description
A physician who specializes in the diagnosis, treatment, and management of allergies. Source: National Uniform Claim Committee

Insurance Plans Accepted

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

  • Choice Bronze HSA (QualChoice) - POS
  • Complete Gold - PPO
  • Complete Gold + Vision + Adult Dental - PPO
  • Connected Silver - PPO
  • Connected Silver (QualChoice) - POS
  • Connected Silver (QualChoice) + Vision + Adult Dental - POS
  • Connected Silver (QualChoiceLife) - PPO
  • Connected Silver (QualChoiceLife) + Vision + Adult Dental - PPO
  • Connected Silver + Vision + Adult Dental - PPO
  • Elite Bronze - PPO
  • Elite Bronze + Vision + Adult Dental - PPO
  • Elite Gold (QualChoice) - POS
  • Elite Gold (QualChoice) + Vision + Adult Dental - POS
  • Elite Gold (QualChoiceLife) - PPO
  • Elite Gold (QualChoiceLife) + Vision + Adult Dental - PPO
  • Everyday Bronze - PPO
  • Everyday Bronze + Vision + Adult Dental - PPO
  • Standard Expanded Bronze - PPO
  • Standard Expanded Bronze (QualChoice) - POS
  • Standard Expanded Bronze + Vision + Adult Dental - PPO
  • Complete Gold - EPO
  • Complete Gold + Vision + Adult Dental - EPO
  • Complete Silver - EPO
  • Complete Silver + Vision + Adult Dental - EPO
  • Elite Bronze - EPO
  • Elite Bronze + Vision + Adult Dental - EPO
  • Everyday Bronze - EPO
  • Everyday Bronze + Vision + Adult Dental - EPO
  • Everyday Gold - EPO
  • Everyday Gold + Vision + Adult Dental - EPO
  • Standard Expanded Bronze - EPO
  • Standard Expanded Bronze + Vision + Adult Dental - EPO
  • Standard Gold - EPO
  • Standard Gold + Vision + Adult Dental - EPO
  • Standard Silver - EPO
  • Standard Silver + Vision + Adult Dental - EPO
  • Elite Bronze - EPO
  • Elite Bronze + Vision + Adult Dental - EPO
  • Elite Gold - EPO
  • Elite Gold + Vision + Adult Dental - EPO
  • Everyday Bronze - EPO
  • Everyday Bronze + Vision + Adult Dental - EPO
  • Everyday Gold - EPO
  • Everyday Gold + Vision + Adult Dental - EPO
  • Focused Silver - EPO
  • Focused Silver + Vision + Adult Dental - EPO
  • Standard Expanded Bronze - EPO
  • Standard Expanded Bronze + Vision + Adult Dental - EPO
  • Standard Gold - EPO
  • Standard Gold + Vision + Adult Dental - EPO
  • Standard Silver - EPO
  • Standard Silver + Vision + Adult Dental - EPO
  • Choice Bronze HSA - EPO
  • Choice Bronze HSA + Vision + Adult Dental - EPO
  • Clear Gold - EPO
  • Clear Gold + Vision + Adult Dental - EPO
  • Complete Gold - HMO
  • Complete Gold + Vision + Adult Dental - HMO
  • Elite Bronze - EPO
  • Elite Bronze - HMO
  • Elite Bronze + Vision + Adult Dental - EPO
  • Elite Bronze + Vision + Adult Dental - HMO
  • Elite Gold - EPO
  • Elite Gold + Vision + Adult Dental - EPO
  • Everyday Bronze - HMO
  • Everyday Bronze + Vision + Adult Dental - HMO
  • Everyday Gold - HMO
  • Everyday Gold + Vision + Adult Dental - HMO
  • Focused Silver - EPO
  • Focused Silver - HMO
  • Focused Silver + Vision + Adult Dental - EPO
  • Focused Silver + Vision + Adult Dental - HMO
  • Clear Gold - EPO
  • Clear Gold + Vision + Adult Dental - EPO
  • Complete Gold - EPO
  • Complete Gold + Vision + Adult Dental - EPO
  • Elite Silver - EPO
  • Elite Silver + Vision + Adult Dental - EPO
  • Everyday Bronze - EPO
  • Everyday Bronze + Vision + Adult Dental - EPO
  • Focused Silver - EPO
  • Focused Silver + Vision + Adult Dental - EPO
  • Principal Bronze HSA - EPO
  • Principal Bronze HSA + Vision + Adult Dental - EPO
  • Standard Expanded Bronze - EPO
  • Standard Expanded Bronze + Vision + Adult Dental - EPO
  • Standard Gold - EPO
  • Standard Gold + Vision + Adult Dental - EPO
  • Standard Silver - EPO
  • Elite Bronze - PPO
  • Elite Bronze + Vision + Adult Dental - PPO
  • Elite Gold - PPO
  • Elite Gold + Vision + Adult Dental - PPO
  • Enhanced Asthma/COPD Care Silver with $0 Drug Options - PPO
  • Enhanced Asthma/COPD Care Silver with $0 Drug Options + Vision + Adult Dental - PPO
  • Enhanced Diabetes Care Silver with $0 Drug Options - PPO
  • Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental - PPO
  • Everyday Bronze - PPO
  • Everyday Bronze + Vision + Adult Dental - PPO
  • Everyday Gold - PPO
  • Everyday Gold + Vision + Adult Dental - PPO
  • Focused Silver - PPO
  • Focused Silver + Vision + Adult Dental - PPO
  • Standard Expanded Bronze - PPO
  • Standard Expanded Bronze + Vision + Adult Dental - PPO
  • Standard Gold - PPO
  • Standard Gold + Vision + Adult Dental - PPO
  • Standard Silver - PPO
  • Standard Silver + Vision + Adult Dental - PPO
  • Elite Bronze - EPO
  • Elite Bronze + Vision + Adult Dental - EPO
  • Elite Gold - EPO
  • Elite Gold + Vision + Adult Dental - EPO
  • Enhanced Diabetes Care Silver with $0 Drug Options - EPO
  • Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental - EPO
  • Everyday Bronze - EPO
  • Everyday Bronze + Vision + Adult Dental - EPO
  • Everyday Gold - EPO
  • Everyday Gold + Vision + Adult Dental - EPO
  • Standard Expanded Bronze - EPO
  • Standard Expanded Bronze + Vision + Adult Dental - EPO
  • Standard Gold - EPO
  • Standard Gold + Vision + Adult Dental - EPO
  • Standard Silver - EPO
  • Standard Silver + Vision + Adult Dental - EPO
  • Balance by Medica Bronze $0 Copay PCP Visits - EPO
  • Balance by Medica Bronze $0 Copay PCP Visits - PPO
  • Balance by Medica Bronze Premier - EPO
  • Balance by Medica Bronze Premier - PPO
  • Balance by Medica Expanded Bronze Standard - EPO
  • Balance by Medica Expanded Bronze Standard - PPO
  • Balance by Medica Gold $0 Copay PCP Visits - EPO
  • Balance by Medica Gold $0 Copay PCP Visits - PPO
  • Balance by Medica Gold Share - EPO
  • Balance by Medica Gold Share - PPO
  • Balance by Medica Gold Standard - EPO
  • Balance by Medica Gold Standard - PPO
  • Balance by Medica Silver $0 Copay PCP Visits - EPO
  • Balance by Medica Silver $0 Copay PCP Visits - PPO
  • Balance by Medica Silver Share - EPO
  • Balance by Medica Silver Share - PPO
  • Balance by Medica Silver Standard - EPO
  • Balance by Medica Silver Standard - PPO
  • Medica Individual Choice Bronze $0 Copay PCP Visits - HMO
  • Medica Individual Choice Bronze HSA - EPO

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
E38022MEDICARE UPIN (02)MO 

Medicare Participation & PECOS Enrollment Status

Mark Vandewalker 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.

Mark Vandewalker 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: 2062536337

    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: I20100824000793

    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

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)

    2 DME suppliers used 20 Medicare Claims 20 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 44 times for 40 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 32 times for 32 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 39 times for 39 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 543 times for 81 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 4,412 times for 189 patients

Professional service for single injection of allergen

A single allergen injection is a procedure where a small amount of a specific allergen is injected into your body. This is done to test your body's reaction to the allergen or to help your immune system become less sensitive to it, reducing allergic symptoms.

This service was performed 2,827 times for 327 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 3,485 times for 65 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 277 times for 28 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 19 times for 19 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 1386833358, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).

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
3
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
6
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
3
Unchanged
Pos 7
3
Doubled → 6
Pos 8
3
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
8
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 8 → 16 → 7 8 → 16 → 7 3 → 6 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 6 + 6 + 1 + 6 + 3 + 6 + 3 + 1 + 0 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1386833358.

Other Providers at the Same Location


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

Counselor
601 W NIFONG BLVD, BLDG. 5A
COLUMBIA, MO 65203
Dentist
601 W NIFONG BLVD, SUITE 4A
COLUMBIA, MO 65203
Social Worker (Clinical)
601 W NIFONG BLVD, BLDG. 5A
COLUMBIA, MO 65203
Counselor (Professional)
601 W NIFONG BLVD, BLDG. 5A
COLUMBIA, MO 65203
Dentist
601 W NIFONG BLVD, SUITE 3A
COLUMBIA, MO 65203
Counselor (Professional)
601 W NIFONG BLVD, BUILDING 5A
COLUMBIA, MO 65203
Counselor
601 W NIFONG BLVD, BLDG 5A
COLUMBIA, MO 65203
Counselor
601 W NIFONG BLVD, 5A-12
COLUMBIA, MO 65203
Community/Behavioral Health
601 W NIFONG BLVD, SUITE 1B
COLUMBIA, MO 65203
Counselor (Professional)
601 W NIFONG BLVD, SUITE 1B, BUILDING 1
COLUMBIA, MO 65203
Counselor (Professional)
601 W NIFONG BLVD, BUILDING 1 SUITE 1E
COLUMBIA, MO 65203
Social Worker (Clinical)
601 W NIFONG BLVD, BUILDING 1 SUITE 1E
COLUMBIA, MO 65203
Counselor (Professional)
601 W NIFONG BLVD, BUILDING 1, STE 1E
COLUMBIA, MO 65203
Social Worker (Clinical)
601 W NIFONG BLVD, BLDG. 5A
COLUMBIA, MO 65203
Nurse Practitioner (Psychiatric/Mental Health)
601 W NIFONG BLVD, STE. 6A
COLUMBIA, MO 65203
Dentist
601 W NIFONG BLVD, STE 3A
COLUMBIA, MO 65203
Pharmacy
601 W NIFONG BLVD, BLDG. 6C, SUITE 11
COLUMBIA, MO 65203
Counselor (Mental Health)
601 W NIFONG BLVD
COLUMBIA, MO 65203
Allergy & Immunology (Allergy)
601 W NIFONG BLVD, SUITE 2B
COLUMBIA, MO 65203
Counselor (Professional)
601 W NIFONG BLVD
COLUMBIA, MO 65203

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1386833358, enumerated as an "individual" on October 16, 2007.

The provider is located at 601 W NIFONG BLVD SUITE 2B COLUMBIA, MO 65203 and the phone number is (573) 446-7000.

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

The provider might be accepting Accepts: Ambetter from Arkansas Health & Wellness, Ambetter. Please consult your insurance carrier or call the provider to verify.