BLACKHAWK CENTER FOR DIGESTIVE HEALTH
NPI 1538367818
Internal Medicine - Gastroenterology in San Ramon, CA

NPI Status: Active since July 06, 2007

Contact Information

111 DEERWOOD RD
SUITE 168
SAN RAMON, CA
ZIP 94583
Phone: (925) 736-8228
Fax: (925) 736-8882

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  • Organization
  • Internal Medicine
  • Gastroenterology

About BLACKHAWK CENTER FOR DIGESTIVE HEALTH

This page provides the complete NPI Profile along with additional information for Blackhawk Center For Digestive Health, an internist established in San Ramon, California operating as a Internal Medicine, focusing in gastroenterology . The healthcare provider is registered in the NPI registry with number 1538367818 assigned on July 2007. The practitioner's primary taxonomy code is 207RG0100X with license number G83524 (CA). The provider is registered as an organization and their NPI record was last updated 15 years ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The provider's other name is Blackhawk Center For Digestive Health. The authorized official of this NPI record is Dr. Jeffrey C. G. Mark M.d. (Physician)

NPI
1538367818
Provider Legal Name
ADULT & PEDIATRIC GASTROENTEROLOGY MEDICAL CENTER
Other Organization Name
BLACKHAWK CENTER FOR DIGESTIVE HEALTH
Other Name Type
Other Name (5)
Entity Type
Organization
Location Address
111 DEERWOOD RD SUITE 168 SAN RAMON, CA 94583
Location Phone
(925) 736-8228
Location Fax
(925) 736-8882
Mailing Address
111 DEERWOOD RD SUITE 168 SAN RAMON, CA 94583
Mailing Phone
(925) 736-8228
Mailing Fax
(925) 736-8882
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
07-06-2007
Last Update Date
01-10-2012
Code Navigator

An internist like Blackhawk Center For Digestive Health 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.
G83524
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.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

DR. JEFFREY C. G. MARK M.D.

Authorized Official Title
PHYSICIAN
Authorized Official Phone
(925) 736-8228

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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 1538367818, 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
5
Unchanged
Pos 3
3
Doubled → 6
Pos 4
8
Unchanged
Pos 5
3
Doubled → 6
Pos 6
6
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
8
Unchanged
Pos 9
1
Doubled → 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 3 → 6 3 → 6 7 → 14 → 5 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 6 + 8 + 6 + 6 + 1 + 4 + 8 + 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 1538367818.

Other Providers at the Same Location


The following 19 providers are registered at the same or a nearby location.

Dentist
111 DEERWOOD RD, SUITE 368
SAN RAMON, CA 94583
Dentist
111 DEERWOOD RD, SUIT#345
SAN RAMON, CA 94583
Ophthalmology
111 DEERWOOD RD, SUITE 300
SAN RAMON, CA 94583
Dentist (Orthodontics and Dentofacial Orthopedics)
111 DEERWOOD RD
SAN RAMON, CA 94583
Dentist (Orthodontics and Dentofacial Orthopedics)
111 DEERWOOD RD, SUITE 390
SAN RAMON, CA 94583
Dentist (General Practice)
111 DEERWOOD RD, SUITE 350
SAN RAMON, CA 94583
Dentist (Dentist Anesthesiologist)
111 DEERWOOD RD, SUITE 170
SAN RAMON, CA 94583
Dentist (General Practice)
111 DEERWOOD RD, SUITE 350
SAN RAMON, CA 94583
Dentist (Dentist Anesthesiologist)
111 DEERWOOD RD, SUITE 170
SAN RAMON, CA 94583
Internal Medicine
111 DEERWOOD RD, SUITE 180
SAN RAMON, CA 94583
Internal Medicine
111 DEERWOOD RD, SUITE 180
SAN RAMON, CA 94583
Dentist
111 DEERWOOD RD, SUITE 170
SAN RAMON, CA 94583
Dentist
111 DEERWOOD RD, SUITE 170
SAN RAMON, CA 94583
Physical Therapist
111 DEERWOOD RD, 240
SAN RAMON, CA 94583
Dentist (General Practice)
111 DEERWOOD RD, #210
SAN RAMON, CA 94583
Psychologist (Cognitive & Behavioral)
111 DEERWOOD RD, SUITE 395
SAN RAMON, CA 94583
Behavior Analyst
111 DEERWOOD RD, SUITE #115
SAN RAMON, CA 94583
Psychiatry & Neurology (Psychiatry)
111 DEERWOOD RD, SUITE 360
SAN RAMON, CA 94583
Behavior Technician
111 DEERWOOD RD
SAN RAMON, CA 94583

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1538367818, enumerated as an "organization" on July 06, 2007.

The provider is located at 111 DEERWOOD RD SUITE 168 SAN RAMON, CA 94583 and the phone number is (925) 736-8228.

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