DR. COLUM DENNEHY MB BCH
NPI 1346977568
Internal Medicine - Hematology & Oncology in Baltimore, MD

NPI Status: Active since August 07, 2022

Contact Information

1650 ORLEANS ST
BALTIMORE, MD
ZIP 21287
Phone: (410) 614-2491

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  • Individual
  • Male
  • Internal Medicine
  • Hematology & Oncology

About COLUM DENNEHY

This page provides the complete NPI Profile along with additional information for Colum Dennehy, an internist established in Baltimore, Maryland with a medical specialization in Internal Medicine, focusing in hematology & oncology . The healthcare provider is registered in the NPI registry with number 1346977568 assigned on August 2022. The practitioner's primary taxonomy code is 207RH0003X with license number 409182 (ZZ). The provider is registered as an individual and his NPI record was last updated 4 years ago.

NPI
1346977568
Provider Name
DR. COLUM DENNEHY MB BCH
Gender
Male
Entity Type
Individual
Location Address
1650 ORLEANS ST BALTIMORE, MD 21287
Location Phone
(410) 614-2491
Mailing Address
1211 S EATON ST UNIT 6040 BALTIMORE, MD 21224
Mailing Phone
(410) 804-2585
Is Sole Proprietor?
No
Enumeration Date
08-07-2022
Last Update Date
08-07-2022
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An internist like Colum Dennehy 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 Hematology & Oncology

Taxonomy Code
207RH0003X
Type
Allopathic & Osteopathic Physicians
License No.
409182
License State
ZZ
Taxonomy Description
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

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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 1346977568, 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.

Pos 1
1
Doubled → 2
Pos 2
3
Unchanged
Pos 3
4
Doubled → 8
Pos 4
6
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
7
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
5
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
8
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 4 → 8 9 → 18 → 9 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 + 3 + 8 + 6 + 1 + 8 + 7 + 1 + 4 + 5 + 1 + 2 + 24 = 72

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.

80 - 72 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1346977568.

Other Providers at the Same Location


The following 18 providers are registered at the same or a nearby location.

Pathology (Clinical Laboratory Director, Non-physician)
1650 ORLEANS ST, CRB1-387
BALTIMORE, MD 21287
Specialist (Research Study)
1650 ORLEANS ST, CRB1, ROOM 589
BALTIMORE, MD 21287
Internal Medicine (Hematology & Oncology)
1650 ORLEANS ST, CRB 1 RM 443
BALTIMORE, MD 21287
Internal Medicine
1650 ORLEANS ST, CRB1 191
BALTIMORE, MD 21287
General Acute Care Hospital
1650 ORLEANS ST, CRB 1 1M 50-A
BALTIMORE, MD 21287
Internal Medicine (Medical Oncology)
1650 ORLEANS ST, CRB1, RM 186
BALTIMORE, MD 21287
Physician Assistant
1650 ORLEANS ST, CRB I 1M 50-A
BALTIMORE, MD 21287
Internal Medicine (Medical Oncology)
1650 ORLEANS ST, CRB I , SUITE 287 - ONCOLOGY
BALTIMORE, MD 21287
Pediatrics (Pediatric Hematology-Oncology)
1650 ORLEANS ST, ROOM 2M46
BALTIMORE, MD 21287
Internal Medicine
1650 ORLEANS ST, CRB 1 RM 186
BALTIMORE, MD 21287
Internal Medicine
1650 ORLEANS ST, CRB1 186
BALTIMORE, MD 21287
Internal Medicine (Hematology & Oncology)
1650 ORLEANS ST
BALTIMORE, MD 21287
Internal Medicine (Medical Oncology)
1650 ORLEANS ST, CRB1 186
BALTIMORE, MD 21287
Pediatrics (Pediatric Hematology-Oncology)
1650 ORLEANS ST
BALTIMORE, MD 21287
Internal Medicine
1650 ORLEANS ST
BALTIMORE, MD 21287
Internal Medicine (Medical Oncology)
1650 ORLEANS ST
BALTIMORE, MD 21287
Pediatrics (Pediatric Hematology-Oncology)
1650 ORLEANS ST, CRB I BUILDING, 3RD FLOOR, ROOM 307
BALTIMORE, MD 21287
Internal Medicine
1650 ORLEANS ST
BALTIMORE, MD 21287

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1346977568, enumerated as an "individual" on August 07, 2022.

The provider is located at 1650 ORLEANS ST BALTIMORE, MD 21287 and the phone number is (410) 614-2491.

Internal Medicine with taxonomy code 207RH0003X and a focus in Hematology & Oncology.