DR. MERIN ANNA REJI MD
NPI 1255968731
Allergy & Immunology in Garden City, NY

NPI Status: Active since March 25, 2020

Contact Information

229 7TH ST STE 105
GARDEN CITY, NY
ZIP 11530
Phone: (516) 663-2097

Get Directions Write a Review

  • Individual
  • Female
  • Years of Experience 7
  • Allergy & Immunology
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About MERIN REJI

This page provides the complete NPI Profile along with additional information for Merin Reji, a provider established in Garden City, New York with a medical specialization in Allergy & Immunology and more than 7 years of experience. The healthcare provider is registered in the NPI registry with number 1255968731 assigned on March 2020. The practitioner's primary taxonomy code is 207K00000X with license number 321021 (NY). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1255968731
Provider Name
DR. MERIN ANNA REJI MD
Gender
Female
Entity Type
Individual
Location Address
229 7TH ST STE 105 GARDEN CITY, NY 11530
Location Phone
(516) 663-2097
Mailing Address
229 7TH ST STE 105 GARDEN CITY, NY 11530
Mailing Phone
(941) 730-9256
Medical School Name
OTHER
Graduation Year
2020
Is Sole Proprietor?
Yes
Enumeration Date
03-25-2020
Last Update Date
06-26-2025
Code Navigator

Location Map

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.
321021
License State
NY
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)
1207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

321021 (NY)

Medicare Participation & PECOS Enrollment Status

Merin Reji 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.

Merin Reji 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: 42640393

    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: I20250530002222

    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. MERIN ANNA REJI MD

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1255968731, we treat the final digit (1) 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

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
2
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
5
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
6
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
7
Unchanged
Pos 9
3
Doubled → 6
Check
1
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 5 → 10 → 1 9 → 18 → 9 8 → 16 → 7 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 0 + 5 + 1 + 8 + 6 + 1 + 6 + 7 + 6 + 24 = 69

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

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1255968731.

Other Providers at the Same Location


The following 9 providers are registered at the same or a nearby location.

Physician Assistant (Medical)
229 7TH ST STE 105
GARDEN CITY, NY 11530
Nurse Practitioner (Family)
229 7TH ST STE 105
GARDEN CITY, NY 11530
Nurse Practitioner (Family)
229 7TH ST STE 105
GARDEN CITY, NY 11530
Physician Assistant
229 7TH ST STE 105
GARDEN CITY, NY 11530
Nurse Practitioner (Family)
229 7TH ST STE 105
GARDEN CITY, NY 11530
Nurse Practitioner (Family)
229 7TH ST STE 105
GARDEN CITY, NY 11530
Dermatology (MOHS-Micrographic Surgery)
229 7TH ST STE 105
GARDEN CITY, NY 11530
Physician Assistant
229 7TH ST STE 105
GARDEN CITY, NY 11530
Allergy & Immunology (Allergy)
229 7TH ST STE 105
GARDEN CITY, NY 11530

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1255968731, enumerated as an "individual" on March 25, 2020.

The provider is located at 229 7TH ST STE 105 GARDEN CITY, NY 11530 and the phone number is (516) 663-2097.

Allergy & Immunology with taxonomy code 207K00000X.