DAVID SIDRANSKY M.D.
NPI 1629147863
Internal Medicine - Medical Oncology in Baltimore, MD

NPI Status: Active since November 06, 2006

Contact Information

720 RUTLAND AVE
BALTIMORE, MD
ZIP 21205
Phone: (410) 502-5153

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  • Individual
  • Male
  • Internal Medicine
  • Medical Oncology

About DAVID SIDRANSKY

This page provides the complete NPI Profile along with additional information for David Sidransky, an internist established in Baltimore, Maryland with a medical specialization in Internal Medicine, focusing in medical oncology . The healthcare provider is registered in the NPI registry with number 1629147863 assigned on November 2006. The practitioner's primary taxonomy code is 207RX0202X with license number D36597 (MD). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1629147863
Provider Name
DAVID SIDRANSKY M.D.
Gender
Male
Entity Type
Individual
Location Address
720 RUTLAND AVE BALTIMORE, MD 21205
Location Phone
(410) 502-5153
Mailing Address
PO BOX 64588 BALTIMORE, MD 21264
Is Sole Proprietor?
No
Enumeration Date
11-06-2006
Last Update Date
09-11-2025
Code Navigator

An internist like David Sidransky 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.

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

Internal Medicine Medical Oncology

Taxonomy Code
207RX0202X
Type
Allopathic & Osteopathic Physicians
License No.
D36597
License State
MD
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.

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

D36597 (MD)
2207Y00000XAllopathic & Osteopathic Physicians

Otolaryngology

D36597 (MD)

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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 1629147863, we treat the final digit (3) 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).

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
6
Unchanged
Pos 3
2
Doubled → 4
Pos 4
9
Unchanged
Pos 5
1
Doubled → 2
Pos 6
4
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
8
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
3
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 1 → 2 7 → 14 → 5 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 4 + 9 + 2 + 4 + 1 + 4 + 8 + 1 + 2 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1629147863.

Other Providers at the Same Location


The following 12 providers are registered at the same or a nearby location.

Pediatrics (Pediatric Hematology-Oncology)
720 RUTLAND AVE, ROSS 1125, DEPT OF HEMATOLOGY
BALTIMORE, MD 21205
Specialist/Technologist, Pathology (Immunology)
720 RUTLAND AVE, ROSS 648
BALTIMORE, MD 21205
Internal Medicine (Cardiovascular Disease)
720 RUTLAND AVE, JOHNS HOPKINS UNIVERSITY ROSS BUILDING, ROOM 1044
BALTIMORE, MD 21205
Pathology (Clinical Laboratory Director, Non-physician)
720 RUTLAND AVE, ROSS BUILDING 648
BALTIMORE, MD 21205
Internal Medicine
720 RUTLAND AVE
BALTIMORE, MD 21205
Nurse Practitioner (Acute Care)
720 RUTLAND AVE, TURNER 36
BALTIMORE, MD 21205
Urology
720 RUTLAND AVE, ROSS 765
BALTIMORE, MD 21205
Pathology (Neuropathology)
720 RUTLAND AVE, ROSS BUILDING 558
BALTIMORE, MD 21205
Pediatrics (Pediatric Hematology-Oncology)
720 RUTLAND AVE
BALTIMORE, MD 21205
Nurse Practitioner (Acute Care)
720 RUTLAND AVE
BALTIMORE, MD 21205
Student in an Organized Health Care Education/Training Program
720 RUTLAND AVE
BALTIMORE, MD 21205
Student in an Organized Health Care Education/Training Program
720 RUTLAND AVE
BALTIMORE, MD 21205

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1629147863, enumerated as an "individual" on November 06, 2006.

The provider is located at 720 RUTLAND AVE BALTIMORE, MD 21205 and the phone number is (410) 502-5153.

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