COLORADO GASTROENTEROLOGY PROF LLC
NPI 1396790101
Internal Medicine - Gastroenterology in Denver, CO

NPI Status: Active since May 23, 2006

Contact Information

1960 N OGDEN ST STE 220
DENVER, CO
ZIP 80218
Phone: (303) 861-0808
Fax: (303) 861-2193

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  • Organization
  • Internal Medicine
  • Gastroenterology

About COLORADO GASTROENTEROLOGY PROF LLC

This page provides the complete NPI Profile along with additional information for Colorado Gastroenterology Prof Llc, an internist established in Denver, Colorado operating as a Internal Medicine, focusing in gastroenterology . The healthcare provider is registered in the NPI registry with number 1396790101 assigned on May 2006. The practitioner's primary taxonomy code is 207RG0100X. The provider is registered as an organization and their NPI record was last updated one year 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 authorized official of this NPI record is Dr. Kevin S Sieja M.d. (Managing Physician)

NPI
1396790101
Provider Name
COLORADO GASTROENTEROLOGY PROF LLC
Entity Type
Organization
Location Address
1960 N OGDEN ST STE 220 DENVER, CO 80218
Location Phone
(303) 861-0808
Location Fax
(303) 861-2193
Mailing Address
1960 N OGDEN ST STE 220 DENVER, CO 80218
Mailing Phone
(303) 861-0808
Mailing Fax
(303) 861-2193
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
05-23-2006
Last Update Date
04-21-2025
Code Navigator

An internist like Colorado Gastroenterology Prof Llc 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
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.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

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. KEVIN S SIEJA M.D.

Authorized Official Title
MANAGING PHYSICIAN
Authorized Official Phone
(303) 861-0808

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
9000152752MEDICAID (05)CO 
DB9573OTHER (01)CORAILROAD MEDICARE

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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 1396790101, 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
3
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
6
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
9
Unchanged
Pos 7
0
Doubled → 0
Pos 8
1
Unchanged
Pos 9
0
Doubled → 0
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 9 → 18 → 9 7 → 14 → 5 0 → 0 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 8 + 6 + 1 + 4 + 9 + 0 + 1 + 0 + 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 1396790101.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Nurse Anesthetist, Certified Registered
1960 N OGDEN ST STE 220
DENVER, CO 80218
Internal Medicine (Gastroenterology)
1960 N OGDEN ST STE 220
DENVER, CO 80218
Internal Medicine (Gastroenterology)
1960 N OGDEN ST STE 220
DENVER, CO 80218

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1396790101, enumerated as an "organization" on May 23, 2006.

The provider is located at 1960 N OGDEN ST STE 220 DENVER, CO 80218 and the phone number is (303) 861-0808.

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

The provider might be accepting Accepts: Medicare, Medicaid and Railroad Medicare. Please consult your insurance carrier or call the provider to verify.