DR. NJERI MAINA MD
NPI 1720213838
Allergy & Immunology in Birmingham, AL

NPI Status: Active since May 18, 2009

Contact Information

504 BROOKWOOD BLVD
BIRMINGHAM, AL
ZIP 35209
Phone: (205) 871-9661
Fax: (205) 870-1621

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  • Individual
  • Female
  • Years of Experience 17
  • Allergy & Immunology
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About NJERI MAINA

This page provides the complete NPI Profile along with additional information for Njeri Maina, a provider established in Birmingham, Alabama with a medical specialization in Allergy & Immunology and more than 17 years of experience. She graduated from Indiana University School Of Medicine in 2009. The healthcare provider is registered in the NPI registry with number 1720213838 assigned on May 2009. The practitioner's primary taxonomy code is 207K00000X with license number 35069 (GA). The provider is registered as an individual and her NPI record was last updated March 2026.

NPI
1720213838
Provider Name
DR. NJERI MAINA MD
Other Name
CAROLINE MAINA
Other Name Type
Other Name (5)
Gender
Female
Entity Type
Individual
Location Address
504 BROOKWOOD BLVD BIRMINGHAM, AL 35209
Location Phone
(205) 871-9661
Location Fax
(205) 870-1621
Mailing Address
504 BROOKWOOD BLVD BIRMINGHAM, AL 35209
Mailing Phone
(205) 871-9661
Mailing Fax
(205) 870-1621
Medical School Name
INDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduation Year
2009
Is Sole Proprietor?
No
Enumeration Date
05-18-2009
Last Update Date
03-27-2026
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Location Map

Secondary Locations

  • 619 19th St S
    Birmingham, AL 35249
    (205) 638-9072

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.
35069
License State
GA
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.

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)
1207KA0200XAllopathic & Osteopathic Physicians

Allergy & Immunology
Allergy

35069 (AL)
2207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

ME113021 (FL)
3390200000XStudent, Health Care

Student in an Organized Health Care Education/Training Program

ME113021 (FL)

Insurance Plans Accepted

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

  • Elite Bronze - HMO
  • Elite Bronze + Vision + Adult Dental - HMO
  • Everyday Bronze - HMO
  • Everyday Bronze + Vision + Adult Dental - HMO
  • Focused Silver - HMO
  • Standard Expanded Bronze - HMO
  • Standard Gold - HMO
  • Standard Silver - HMO
  • Standard Silver + Vision + Adult Dental - HMO
  • Clarity Silver - HMO
  • Complete Gold - HMO
  • Complete Gold + Vision + Adult Dental - HMO
  • Elite Bronze - HMO
  • Elite Bronze + Vision + Adult Dental - HMO
  • Enhanced Diabetes Care Silver with $0 Drug Options - HMO
  • Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental - HMO
  • Everyday Bronze - HMO
  • Everyday Bronze + Vision + Adult Dental - HMO
  • Everyday Gold - HMO
  • 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
  • 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
  • Clear Silver with $0 Insulin Options - HMO
  • Complete Gold - HMO
  • Complete Gold + Vision + Adult Dental - HMO
  • Complete Gold with Atrium Health - HMO
  • Complete Gold with Atrium Health + Vision + Adult Dental - HMO
  • Elite Bronze - HMO
  • Elite Bronze + Vision + Adult Dental - HMO
  • Elite Bronze with Atrium Health - HMO
  • Elite Bronze with Atrium Health + Vision + Adult Dental - HMO
  • Enhanced Asthma/COPD Care Silver with $0 Drug Options - HMO
  • 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

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.

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
006107500MEDICAID (05)FL 
P10173441OTHER (01)RR MEDICARE
14L3EOTHER (01)FLBCBS

Medicare Participation & PECOS Enrollment Status

Njeri Maina 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.

Njeri Maina 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: 648436451

    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: I20221215000088

    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.

Administration and interpretation of patient-focused health risk assessment

This procedure involves a detailed evaluation of your health to identify potential risks. It includes analyzing your medical history, lifestyle habits, and family health history. The results are interpreted to provide a personalized plan to improve your health and prevent future issues.

This service was performed 26 times for 21 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 59 times for 46 patients

Injection of drug or substance under skin or into muscle

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

This service was performed 149 times for 12 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 29 times for 29 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 170 times for 18 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 130 times for 18 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 990 times for 22 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 243 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 14 times for 12 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 1720213838, 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
7
Unchanged
Pos 3
2
Doubled → 4
Pos 4
0
Unchanged
Pos 5
2
Doubled → 4
Pos 6
1
Unchanged
Pos 7
3
Doubled → 6
Pos 8
8
Unchanged
Pos 9
3
Doubled → 6
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 2 → 4 2 → 4 3 → 6 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 4 + 0 + 4 + 1 + 6 + 8 + 6 + 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 1720213838.

Other Providers at the Same Location


The following 15 providers are registered at the same or a nearby location.

Specialist
504 BROOKWOOD BLVD
BIRMINGHAM, AL 35209
Nurse Practitioner
504 BROOKWOOD BLVD
BIRMINGHAM, AL 35209
Nurse Practitioner (Family)
504 BROOKWOOD BLVD
BIRMINGHAM, AL 35209
Nurse Practitioner (Family)
504 BROOKWOOD BLVD
HOMEWOOD, AL 35209
Allergy & Immunology
504 BROOKWOOD BLVD
HOMEWOOD, AL 35209
Nurse Practitioner (Family)
504 BROOKWOOD BLVD
BIRMINGHAM, AL 35209
Nurse Practitioner (Family)
504 BROOKWOOD BLVD
BIRMINGHAM, AL 35209
Nurse Practitioner (Family)
504 BROOKWOOD BLVD
BIRMINGHAM, AL 35209
Nurse Practitioner (Gerontology)
504 BROOKWOOD BLVD
BIRMINGHAM, AL 35209
Nurse Practitioner (Family)
504 BROOKWOOD BLVD
BIRMINGHAM, AL 35209
Nurse Practitioner (Family)
504 BROOKWOOD BLVD
BIRMINGHAM, AL 35209
Allergy & Immunology
504 BROOKWOOD BLVD
BIRMINGHAM, AL 35209
Allergy & Immunology
504 BROOKWOOD BLVD
BIRMINGHAM, AL 35209
Allergy & Immunology (Allergy)
504 BROOKWOOD BLVD
BIRMINGHAM, AL 35209
Allergy & Immunology
504 BROOKWOOD BLVD
BIRMINGHAM, AL 35209

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1720213838, enumerated as an "individual" on May 18, 2009.

The provider is located at 504 BROOKWOOD BLVD BIRMINGHAM, AL 35209 and the phone number is (205) 871-9661.

Allergy & Immunology with taxonomy code 207K00000X.

The provider might be accepting Accepts: Ambetter from Absolute Total Care, Ambetter. Please consult your insurance carrier or call the provider to verify.