MARGAUX ELIZABETH HARTMANN RRT
NPI 1528935210
Respiratory Therapist, Registered in East Northport, NY

NPI Status: Active since October 20, 2025

Contact Information

554 LARKFIELD RD
EAST NORTHPORT, NY
ZIP 11731
Phone: (631) 266-4501

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  • Individual
  • Female
  • Respiratory Therapist, Registered

About MARGAUX HARTMANN

This page provides the complete NPI Profile along with additional information for Margaux Hartmann, a provider established in East Northport, New York with a medical specialization in Respiratory Therapist, Registered. The healthcare provider is registered in the NPI registry with number 1528935210 assigned on October 2025. The practitioner's primary taxonomy code is 227900000X with license number 012470 (NY). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1528935210
Provider Name
MARGAUX ELIZABETH HARTMANN RRT
Gender
Female
Entity Type
Individual
Location Address
554 LARKFIELD RD EAST NORTHPORT, NY 11731
Location Phone
(631) 266-4501
Mailing Address
28 DUNE CT NORTHPORT, NY 11768
Mailing Phone
(631) 766-8384
Is Sole Proprietor?
Yes
Enumeration Date
10-20-2025
Last Update Date
10-20-2025
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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

Respiratory Therapist, Registered

Taxonomy Code
227900000X
Type
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
License No.
012470
License State
NY
Taxonomy Description
A Registered Respiratory Therapist (RRT) is an advanced therapist who has passed standardized written and clinical simulation examinations administered by the National Board for Respiratory Care (NBRC). In addition, to the certified therapist (CRT) entry level skills, RRTs have advanced education and training in patient assessment, in the development and modification of patient care plans, and in assuring the appropriate utilization of respiratory care resources. An RRT is a graduate of an associate or baccalaureate degree producing educational programs approved by the Commission on Accreditation of Allied Health Education Programs (CAAHEP) and where applicable, is licensed by the state and is practicing within the scope of that license.

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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 1528935210, 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
5
Unchanged
Pos 3
2
Doubled → 4
Pos 4
8
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
3
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
2
Unchanged
Pos 9
1
Doubled → 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 2 → 4 9 → 18 → 9 5 → 10 → 1 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 4 + 8 + 1 + 8 + 3 + 1 + 0 + 2 + 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 1528935210.

Other Providers at the Same Location


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

Pediatrics
554 LARKFIELD RD, STE 203
EAST NORTHPORT, NY 11731
Physical Therapist
554 LARKFIELD RD, SUITE 207
EAST NORTHPORT, NY 11731
Obstetrics & Gynecology
554 LARKFIELD RD
EAST NORTHPORT, NY 11731
Orthopaedic Surgery
554 LARKFIELD RD, STE 10G
E NORTHPORT, NY 11731
Psychiatry & Neurology (Psychiatry)
554 LARKFIELD RD, SUITE 10I
EAST NORTHPORT, NY 11731
Chiropractor
554 LARKFIELD RD
EAST NORTHPORT, NY 11731
Dentist (General Practice)
554 LARKFIELD RD, SUITE 10-I
EAST NORTHPORT, NY 11731
Dentist
554 LARKFIELD RD, SUITE 200
EAST NORTHPORT, NY 11731
Optometrist (Vision Therapy)
554 LARKFIELD RD, SUITE 204
EAST NORTHPORT, NY 11731
Occupational Therapist
554 LARKFIELD RD, SUITE 207
EAST NORTHPORT, NY 11731
Physician Assistant
554 LARKFIELD RD
EAST NORTHPORT, NY 11731
Physical Therapist
554 LARKFIELD RD, SUITE 207
EAST NORTHPORT, NY 11731
Specialist
554 LARKFIELD RD
EAST NORTHPORT, NY 11731
Dentist (Periodontics)
554 LARKFIELD RD, SUITE 201
EAST NORTHPORT, NY 11731
Anesthesiology (Pain Medicine)
554 LARKFIELD RD, 10A
EAST NORTHPORT, NY 11731
Nurse Practitioner (Women's Health)
554 LARKFIELD RD, SUITE 105
EAST NORTHPORT, NY 11731
Physical Therapist
554 LARKFIELD RD, SUITE 207
EAST NORTHPORT, NY 11731
Physical Therapy Assistant
554 LARKFIELD RD, SUITE 207
EAST NORTHPORT, NY 11731
Social Worker (Clinical)
554 LARKFIELD RD
EAST NORTHPORT, NY 11731
Podiatrist (Foot Surgery)
554 LARKFIELD RD, STE 10C
E. NORTHPORT, NY 11731

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1528935210, enumerated as an "individual" on October 20, 2025.

The provider is located at 554 LARKFIELD RD EAST NORTHPORT, NY 11731 and the phone number is (631) 266-4501.

Respiratory Therapist, Registered with taxonomy code 227900000X.