DR. KERRI JOHANNSON MD
NPI 1124466743
Internal Medicine - Pulmonary Disease in San Francisco, CA

NPI Status: Active since June 05, 2013

Contact Information

505 PARNASSUS AVE RM M1093
SAN FRANCISCO, CA
ZIP 94143
Phone: (415) 502-2361

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  • Individual
  • Female
  • Internal Medicine
  • Pulmonary Disease

About KERRI JOHANNSON

This page provides the complete NPI Profile along with additional information for Kerri Johannson, an internist established in San Francisco, California with a medical specialization in Internal Medicine, focusing in pulmonary disease . The healthcare provider is registered in the NPI registry with number 1124466743 assigned on June 2013. The practitioner's primary taxonomy code is 207RP1001X with license number 125332 (CA). The provider is registered as an individual and her NPI record was last updated 13 years ago.

NPI
1124466743
Provider Name
DR. KERRI JOHANNSON MD
Gender
Female
Entity Type
Individual
Location Address
505 PARNASSUS AVE RM M1093 SAN FRANCISCO, CA 94143
Location Phone
(415) 502-2361
Mailing Address
755 LAWTON ST SAN FRANCISCO, CA 94122
Mailing Phone
(415) 987-2366
Is Sole Proprietor?
Yes
Enumeration Date
06-05-2013
Last Update Date
06-05-2013
Code Navigator

An internist like Kerri Johannson 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.

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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 Pulmonary Disease

Taxonomy Code
207RP1001X
Type
Allopathic & Osteopathic Physicians
License No.
125332
License State
CA
Taxonomy Description
An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.

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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 1124466743, we treat the final digit (3) 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).

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

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 4 + 4 + 8 + 6 + 1 + 2 + 7 + 8 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1124466743.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1124466743, enumerated as an "individual" on June 05, 2013.

The provider is located at 505 PARNASSUS AVE RM M1093 SAN FRANCISCO, CA 94143 and the phone number is (415) 502-2361.

Internal Medicine with taxonomy code 207RP1001X and a focus in Pulmonary Disease.