DR. PAUL DAVID NEVINS SELVADURAI MD
NPI 1538967799
Internal Medicine - Medical Oncology in Houston, TX

NPI Status: Active since March 04, 2025

Contact Information

1515 HOLCOMBE BLVD UNIT 4551515
HOUSTON, TX
ZIP 77030
Phone: (713) 563-1055

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  • Individual
  • Male
  • Internal Medicine
  • Medical Oncology

About PAUL NEVINS SELVADURAI

This page provides the complete NPI Profile along with additional information for Paul Nevins Selvadurai, an internist established in Houston, Texas with a medical specialization in Internal Medicine, focusing in medical oncology . The healthcare provider is registered in the NPI registry with number 1538967799 assigned on March 2025. The practitioner's primary taxonomy code is 207RX0202X with license number PENDING (TX). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1538967799
Provider Name
DR. PAUL DAVID NEVINS SELVADURAI MD
Other Name
PAUL DAVID SELVADURAI MD
Other Name Type
Other Name (5)
Gender
Male
Entity Type
Individual
Location Address
1515 HOLCOMBE BLVD UNIT 4551515 HOUSTON, TX 77030
Location Phone
(713) 563-1055
Mailing Address
20 LAKE FOREST DR SAINT LOUIS, MO 63117
Mailing Phone
(617) 691-6666
Is Sole Proprietor?
No
Enumeration Date
03-04-2025
Last Update Date
03-04-2025
Code Navigator

An internist like Paul Nevins Selvadurai is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

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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

Internal Medicine Medical Oncology

Taxonomy Code
207RX0202X
Type
Allopathic & Osteopathic Physicians
License No.
PENDING
License State
TX
Taxonomy Description
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.

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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 1538967799, we treat the final digit (9) 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 81. The final step is to find the difference between that total and the next multiple of ten (90 - 81 = 9).

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
3
Doubled → 6
Pos 4
8
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
6
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
7
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
9
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 3 → 6 9 → 18 → 9 7 → 14 → 5 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 6 + 8 + 1 + 8 + 6 + 1 + 4 + 7 + 1 + 8 + 24 = 81

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

The next multiple of ten after 81 is 90. The difference is the calculated check digit.

90 - 81 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1538967799.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1538967799, enumerated as an "individual" on March 04, 2025.

The provider is located at 1515 HOLCOMBE BLVD UNIT 4551515 HOUSTON, TX 77030 and the phone number is (713) 563-1055.

Internal Medicine with taxonomy code 207RX0202X and a focus in Medical Oncology.