DANIEL R CONLIN M D & ROBERT J ELSEN M D A MEDICAL CORPORATION
NPI 1568577955
Internal Medicine - Gastroenterology in San Francisco, CA

NPI Status: Active since August 19, 2006

Contact Information

2100 WEBSTER ST STE 315
SAN FRANCISCO, CA
ZIP 94115
Phone: (415) 923-3320
Fax: (415) 885-6748

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  • Organization
  • Internal Medicine
  • Gastroenterology

About DANIEL R CONLIN M D & ROBERT J ELSEN M D A MEDICAL CORPORATION

This page provides the complete NPI Profile along with additional information for Daniel R Conlin M D & Robert J Elsen M D A Medical Corporation, an internist established in San Francisco, California operating as a Internal Medicine, focusing in gastroenterology . The healthcare provider is registered in the NPI registry with number 1568577955 assigned on August 2006. The practitioner's primary taxonomy code is 207RG0100X with license number G71096 (CA). The provider is registered as an organization and their NPI record was last updated 2 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 authorized official of this NPI record is Robert J. Elsen M.d. (General Partner)

NPI
1568577955
Provider Name
DANIEL R CONLIN M D & ROBERT J ELSEN M D A MEDICAL CORPORATION
Entity Type
Organization
Location Address
2100 WEBSTER ST STE 315 SAN FRANCISCO, CA 94115
Location Phone
(415) 923-3320
Location Fax
(415) 885-6748
Mailing Address
PO BOX 103887 PASADENA, CA 91189
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
08-19-2006
Last Update Date
08-07-2024
Code Navigator

An internist like Daniel R Conlin M D & Robert J Elsen M D A Medical Corporation 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.
G71096
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

ROBERT J. ELSEN M.D.

Authorized Official Title
GENERAL PARTNER
Authorized Official Phone
(415) 863-5272

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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 1568577955, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).

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
6
Doubled → 12 → 1 + 2
Pos 4
8
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
7
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
9
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
5
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 6 → 12 → 3 5 → 10 → 1 7 → 14 → 5 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 2 + 8 + 1 + 0 + 7 + 1 + 4 + 9 + 1 + 0 + 24 = 65

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

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1568577955.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1568577955, enumerated as an "organization" on August 19, 2006.

The provider is located at 2100 WEBSTER ST STE 315 SAN FRANCISCO, CA 94115 and the phone number is (415) 923-3320.

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