DR. JOHN CHARLES NORRIS M.D.
NPI 1801083076
Internal Medicine - Rheumatology in San Luis Obispo, CA

NPI Status: Active since October 01, 2007

Contact Information

CALIFORNIA MENS COLONY
HWY 1
SAN LUIS OBISPO, CA
ZIP 93409
Phone: (805) 547-7911
Fax: (805) 547-7583

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  • Individual
  • Male
  • Internal Medicine
  • Rheumatology

About JOHN NORRIS

This page provides the complete NPI Profile along with additional information for John Norris, an internist established in San Luis Obispo, California with a medical specialization in Internal Medicine, focusing in rheumatology . The healthcare provider is registered in the NPI registry with number 1801083076 assigned on October 2007. The practitioner's primary taxonomy code is 207RR0500X with license number C29037 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1801083076
Provider Name
DR. JOHN CHARLES NORRIS M.D.
Gender
Male
Entity Type
Individual
Location Address
CALIFORNIA MENS COLONY HWY 1 SAN LUIS OBISPO, CA 93409
Location Phone
(805) 547-7911
Location Fax
(805) 547-7583
Mailing Address
455 CHARLES DR SAN LUIS OBISPO, CA 93401
Mailing Phone
(805) 544-4679
Mailing Fax
(805) 547-7583
Is Sole Proprietor?
Yes
Enumeration Date
10-01-2007
Last Update Date
10-01-2007
Code Navigator

An internist like John Norris 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 Rheumatology

Taxonomy Code
207RR0500X
Type
Allopathic & Osteopathic Physicians
License No.
C29037
License State
CA
Taxonomy Description
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

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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 1801083076, we treat the final digit (6) 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 6).

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

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 0 + 1 + 0 + 8 + 6 + 0 + 1 + 4 + 24 = 54

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

The next multiple of ten after 54 is 60. The difference is the calculated check digit.

60 - 54 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1801083076.

Other Providers at the Same Location


The following 13 providers are registered at the same or a nearby location.

Internal Medicine
CALIFORNIA MENS COLONY, HIGHWAY 1 ATTENTION CHIEF MEDICAL OFFICERS OFFICE
SAN LUIS OBISPO, CA 93409
Psychiatry & Neurology (Psychiatry)
CALIFORNIA MENS COLONY, HIGHWAY 1
SAN LUIS OBISPO, CA 93409
Psychiatry & Neurology (Psychiatry)
CALIFORNIA MENS COLONY, N. HWY 1
SAN LUIS OBISPO, CA 93409
Psychiatry & Neurology (Psychiatry)
CALIFORNIA MENS COLONY, N. HIGHWAY 1
SAN LUIS OBISPO, CA 93409
Psychiatry & Neurology (Psychiatry)
CALIFORNIA MENS COLONY, HIGHWAY 1
SAN LUIS OBISPO, CA 93409
Family Medicine
CALIFORNIA MENS COLONY, HIGHWAY 1
SAN LUIS OBISPO, CA 93409
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
CALIFORNIA MENS COLONY, HIGHWAY 1
SAN LUIS OBISPO, CA 93409
Psychologist (Counseling)
CALIFORNIA MENS COLONY
SAN LUIS OBISPO, CA 93409
Social Worker (Clinical)
CALIFORNIA MENS COLONY, HIGHWAY 1
SAN LUIS OBISPO, CA 93409
Psychologist (Clinical)
CALIFORNIA MENS COLONY, HIGHWAY 1
SAN LUIS OBISPO, CA 93409
Psychologist (Clinical)
CALIFORNIA MENS COLONY, HIGHWAY ONE
SAN LUIS OBISPO, CA 93409
Psychologist
CALIFORNIA MENS COLONY, HIGHWAY 1
SAN LUIS OBISPO, CA 93409
Social Worker (Clinical)
CALIFORNIA MENS COLONY, HIGHWAY 1, COLONY DRIVE
SAN LUIS OBISPO, CA 93409

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1801083076, enumerated as an "individual" on October 01, 2007.

The provider is located at CALIFORNIA MENS COLONY HWY 1 SAN LUIS OBISPO, CA 93409 and the phone number is (805) 547-7911.

Internal Medicine with taxonomy code 207RR0500X and a focus in Rheumatology.