MARILYN SAMUEL NDUKWE MD
NPI 1518669878
Hospitalist in New Haven, CT
NPI Status: Active since March 20, 2023
Contact Information
20 YORK ST
NEW HAVEN, CT
ZIP 06510
Phone: (203) 668-4242
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.
NPPES record last updated: June 30, 2026. Verified against the NPPES registry weekly; last sync: July 12, 2026.
- Individual
- Female
- Hospitalist
About MARILYN NDUKWE
This page provides the complete NPI Profile along with additional information for Marilyn Ndukwe, a provider established in New Haven, Connecticut with a medical specialization in Hospitalist. The healthcare provider is registered in the NPI registry with number 1518669878 assigned on March 2023. The practitioner's primary taxonomy code is 208M00000X with license number 84145 (CT). The provider is registered as an individual and her NPI record was last updated June 2026.
- NPI
- 1518669878
- Provider Name
- MARILYN SAMUEL NDUKWE MD
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 20 YORK ST NEW HAVEN, CT 06510
- Location Phone
- (203) 668-4242
- Mailing Address
- 20 YORK ST NEW HAVEN, CT 06510
- Mailing Phone
- (203) 688-4242
- Is Sole Proprietor?
- No
- Enumeration Date
- 03-20-2023
- Last Update Date
- 06-30-2026
- 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
Hospitalist
- Taxonomy Code
- 208M00000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 84145
- License State
- CT
- Taxonomy Description
- Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
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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 1518669878, 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 72 is 80. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1518669878, enumerated as an "individual" on March 20, 2023.
The provider is located at 20 YORK ST NEW HAVEN, CT 06510 and the phone number is (203) 668-4242.
Hospitalist with taxonomy code 208M00000X.
