DR. ALEXANDRA JOSEPH CHASTANT MD
NPI 1134623903
Allergy & Immunology in Lafayette, LA

NPI Status: Active since March 19, 2018

Contact Information

320 SETTLERS TRACE BLVD
LAFAYETTE, LA
ZIP 70508
Phone: (337) 981-9495
Fax: (337) 981-7451

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  • Individual
  • Female
  • Years of Experience 8
  • Allergy & Immunology
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About ALEXANDRA CHASTANT

This page provides the complete NPI Profile along with additional information for Alexandra Chastant, a provider established in Lafayette, Louisiana with a medical specialization in Allergy & Immunology and more than 8 years of experience. She graduated from Louisiana State University School Of Medicine In New Orleans in 2018. The healthcare provider is registered in the NPI registry with number 1134623903 assigned on March 2018. The practitioner's primary taxonomy code is 207K00000X with license number 338387 (LA). The provider is registered as an individual and her NPI record was last updated 2 years ago.

NPI
1134623903
Provider Name
DR. ALEXANDRA JOSEPH CHASTANT MD
Gender
Female
Entity Type
Individual
Location Address
320 SETTLERS TRACE BLVD LAFAYETTE, LA 70508
Location Phone
(337) 981-9495
Location Fax
(337) 981-7451
Mailing Address
320 SETTLERS TRACE BLVD LAFAYETTE, LA 70508
Mailing Phone
(337) 981-9495
Mailing Fax
(337) 981-7451
Medical School Name
LOUISIANA STATE UNIVERSITY SCHOOL OF MEDICINE IN NEW ORLEANS
Graduation Year
2018
Is Sole Proprietor?
No
Enumeration Date
03-19-2018
Last Update Date
01-02-2024
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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

Taxonomy Code
207K00000X
Type
Allopathic & Osteopathic Physicians
License No.
338387
License State
LA
Taxonomy Description
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.

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
  • Complete Silver (QualChoice) - POS
  • Connected Silver - PPO
  • Connected Silver (QualChoice) - POS
  • Connected Silver (QualChoiceLife) - PPO
  • Connected Silver + Vision + Adult Dental - PPO
  • Elite Bronze - PPO
  • Elite Bronze + Vision + Adult Dental - PPO
  • Complete Gold - EPO
  • Complete Gold + Vision + Adult Dental - EPO
  • Elite Bronze - EPO
  • Elite Bronze + Vision + Adult Dental - EPO
  • Elite Gold - EPO
  • Elite Gold + Vision + Adult Dental - EPO
  • Elite Silver - EPO
  • Elite Silver + Vision + Adult Dental - EPO
  • Everyday Bronze - EPO
  • Everyday Bronze + Vision + Adult Dental - EPO
  • Choice Bronze HSA - HMO
  • Choice Bronze HSA + Vision + Adult Dental - HMO
  • Complete Gold - HMO
  • Complete Gold + Vision + Adult Dental - HMO
  • Complete Silver - HMO
  • Complete Silver + Vision + Adult Dental - HMO
  • Everyday Bronze - HMO
  • Everyday Bronze + Vision + Adult Dental - HMO
  • Everyday Gold - HMO
  • Everyday Gold + Vision + Adult Dental - HMO
  • Complete Gold - EPO
  • Complete Gold + Vision + Adult Dental - EPO
  • Complete Silver - EPO
  • Complete Silver + Vision + Adult Dental - EPO
  • Everyday Gold - EPO
  • Everyday Gold + Vision + Adult Dental - EPO
  • Focused Silver - EPO
  • Focused Silver + Vision + Adult Dental - EPO
  • Standard Gold - EPO
  • Standard Gold + Vision + Adult Dental - EPO
  • Blue Max 70/50 $6700 - PPO
  • Blue Max 90/70 $1500 - PPO
  • Blue Max Copay (PCP, Specialist, Urgent Care) 50/50 $3300 - PPO
  • Blue Max Copay (PCP, Specialist, Urgent Care) 50/50 $7500 Standardized Plan - PPO
  • Blue Max Copay (PCP, Specialist, Urgent Care) 60/40 $5000 Standardized Plan - PPO
  • Blue Max Copay (PCP, Specialist, Urgent Care) 75/55 $1500 Standardized Plan - PPO
  • Blue Saver 60/40 $6100 - PPO
  • Blue Saver 90/70 $3200 - PPO
  • Blue Connect 80/60 $3200 (L) - POS
  • Blue Connect 80/60 $3200 (N) - POS
  • Blue Connect 80/60 $3200 (S) - POS
  • Blue Connect Copay (PCP, Specialist, Urgent Care) 50/50 $7500 Standardized Plan (L) - POS
  • Blue Connect Copay (PCP, Specialist, Urgent Care) 50/50 $7500 Standardized Plan (N) - POS
  • Blue Connect Copay (PCP, Specialist, Urgent Care) 50/50 $7500 Standardized Plan (S) - POS
  • Blue Connect Copay (PCP, Specialist, Urgent Care) 60/40 $5000 Standardized Plan (L) - POS
  • Blue Connect Copay (PCP, Specialist, Urgent Care) 60/40 $5000 Standardized Plan (N) - POS
  • Blue Connect Copay (PCP, Specialist, Urgent Care) 60/40 $5000 Standardized Plan (S) - POS
  • Blue Connect Copay (PCP, Specialist, Urgent Care) 75/55 $1500 Standardized Plan (L) - POS

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

Medicare Participation & PECOS Enrollment Status

Alexandra Chastant 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.

Alexandra Chastant 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: 5395277099

    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: I20241018003771

    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

Reviews for DR. ALEXANDRA JOSEPH CHASTANT MD

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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.
1134623903
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2164122690
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 1 + 6 + 4 + 1 + 2 + 2 + 6 + 9 + 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 1134623903 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 4 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1225034812MR. BERNARD C FRUGE JR. MD
Individual
Allergy & Immunology320 SETTLERS TRACE BLVD
LAFAYETTE, LA 70508
(337) 981-9495
1346232212DR. BINA E JOSEPH MD
Individual
Allergy & Immunology320 SETTLERS TRACE BLVD
LAFAYETTE, LA 70508
(337) 981-9495
1437208840ALLERGY ASTHMA & IMMUNOLOGY CENTER OF SOUTHWEST LOUISIANA
Organization
Allergy & Immunology (Allergy)320 SETTLERS TRACE BLVD
LAFAYETTE, LA 70508
(337) 981-9495
1932424660DR. ANDREW DANIEL COLLINS M.D.
Individual
Allergy & Immunology320 SETTLERS TRACE BLVD
LAFAYETTE, LA 70508
(337) 981-9495

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1134623903, enumerated in the NPI registry as an "individual" on March 19, 2018

The provider is located at 320 Settlers Trace Blvd Lafayette, La 70508 and the phone number is (337) 981-9495

The provider's speciality is Allergy & Immunology with taxonomy code 207K00000X

The provider has more than 8 years of experience. She graduated from Louisiana State University School Of Medicine In New Orleans in 2018.

The provider might be accepting Accepts: Ambetter from Arkansas Health & Wellness, Ambetter. 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.

This NPI record was last updated on March 19, 2018. 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].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.