DAVID S BLOOM MD
NPI 1619931011
Internal Medicine - Gastroenterology in Greenbrae, CA

NPI Status: Active since April 13, 2006

Contact Information

1350 S ELISEO DR
STE 130
GREENBRAE, CA
ZIP 94904
Phone: (415) 925-6900
Fax: (415) 925-6919

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  • Individual
  • Male
  • Internal Medicine
  • Gastroenterology

About DAVID BLOOM

This page provides the complete NPI Profile along with additional information for David Bloom, an internist established in Greenbrae, California with a medical specialization in Internal Medicine, focusing in gastroenterology . The healthcare provider is registered in the NPI registry with number 1619931011 assigned on April 2006. The practitioner's primary taxonomy code is 207RG0100X with license number G008236 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1619931011
Provider Name
DAVID S BLOOM MD
Gender
Male
Entity Type
Individual
Location Address
1350 S ELISEO DR STE 130 GREENBRAE, CA 94904
Location Phone
(415) 925-6900
Location Fax
(415) 925-6919
Mailing Address
1350 S ELISEO DR STE 130 GREENBRAE, CA 94904
Mailing Phone
(415) 925-6900
Mailing Fax
(415) 925-6919
Is Sole Proprietor?
Yes
Enumeration Date
04-13-2006
Last Update Date
07-08-2007
Code Navigator

An internist like David Bloom 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 Gastroenterology

Taxonomy Code
207RG0100X
Type
Allopathic & Osteopathic Physicians
License No.
G008236
License State
CA
Taxonomy Description
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

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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 1619931011, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

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

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 2 + 9 + 1 + 8 + 3 + 2 + 0 + 2 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1619931011.

Other Providers at the Same Location


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

Radiology (Radiation Oncology)
1350 S ELISEO DR, #100
GREENBRAE, CA 94904
Radiology (Radiation Oncology)
1350 S ELISEO DR, STE 100
GREENBRAE, CA 94904
Radiology (Radiation Oncology)
1350 S ELISEO DR, 100
GREENBRAE, CA 94904
Radiology (Radiation Oncology)
1350 S ELISEO DR, #100
GREENBRAE, CA 94904
Radiology (Radiation Oncology)
1350 S ELISEO DR, 100
GREENBRAE, CA 94904
Internal Medicine (Hematology & Oncology)
1350 S ELISEO DR, SUITE 200
GREENBRAE, CA 94904
Specialist
1350 S ELISEO DR, SUITE 200
GREENBRAE, CA 94904
Psychiatry & Neurology (Neurology)
1350 S ELISEO DR, #220
GREENBRAE, CA 94904
Physician Assistant
1350 S ELISEO DR
GREENBRAE, CA 94904
Internal Medicine (Gastroenterology)
1350 S ELISEO DR, STE 130
GREENBRAE, CA 94904
Internal Medicine (Gastroenterology)
1350 S ELISEO DR, STE 130
GREENBRAE, CA 94904
Internal Medicine (Gastroenterology)
1350 S ELISEO DR, STE 130
GREENBRAE, CA 94904
Specialist
1350 S ELISEO DR, SUITE 200
GREENBRAE, CA 94904
Specialist
1350 S ELISEO DR, SUITE 200
GREENBRAE, CA 94904
Specialist
1350 S ELISEO DR, SUITE 200
GREENBRAE, CA 94904
Specialist
1350 S ELISEO DR, SUITE 200
GREENBRAE, CA 94904
Specialist
1350 S ELISEO DR, SUITE 200
GREENBRAE, CA 94904
Counselor (Mental Health)
1350 S ELISEO DR, STE 200
GREENBRAE, CA 94904
Internal Medicine (Gastroenterology)
1350 S ELISEO DR, SUITE 130
GREENBRAE, CA 94904
Nurse Practitioner (Family)
1350 S ELISEO DR, STE 130
GREENBRAE, CA 94904

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1619931011, enumerated as an "individual" on April 13, 2006.

The provider is located at 1350 S ELISEO DR STE 130 GREENBRAE, CA 94904 and the phone number is (415) 925-6900.

Internal Medicine with taxonomy code 207RG0100X and a focus in Gastroenterology.