DR. JOHN J FISHER M.D.
NPI 1790704286
Internal Medicine - Medical Oncology in Sacramento, CA

NPI Status: Active since July 18, 2006

Contact Information

2929 K ST
SUITE 200
SACRAMENTO, CA
ZIP 95816
Phone: (916) 374-5500
Fax: (916) 374-5540

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  • Individual
  • Male
  • Internal Medicine
  • Medical Oncology

About JOHN FISHER

This page provides the complete NPI Profile along with additional information for John Fisher, an internist established in Sacramento, California with a medical specialization in Internal Medicine, focusing in medical oncology . The healthcare provider is registered in the NPI registry with number 1790704286 assigned on July 2006. The practitioner's primary taxonomy code is 207RX0202X with license number A22375 (CA). The provider is registered as an individual and his NPI record was last updated 14 years ago.

NPI
1790704286
Provider Name
DR. JOHN J FISHER M.D.
Gender
Male
Entity Type
Individual
Location Address
2929 K ST SUITE 200 SACRAMENTO, CA 95816
Location Phone
(916) 374-5500
Location Fax
(916) 374-5540
Mailing Address
2929 K ST SUITE 200 SACRAMENTO, CA 95816
Mailing Phone
(916) 374-5500
Mailing Fax
(916) 374-5540
Is Sole Proprietor?
No
Enumeration Date
07-18-2006
Last Update Date
03-19-2012
Code Navigator

An internist like John Fisher 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 Medical Oncology

Taxonomy Code
207RX0202X
Type
Allopathic & Osteopathic Physicians
License No.
A22375
License State
CA
Taxonomy Description
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207RH0000XAllopathic & Osteopathic Physicians

Internal Medicine
Hematology

A22375 (CA)

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.

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

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
00A223750MEDICARE ID-TYPE UNSPECIFIED (04)CA 
CJ375ZMEDICARE PIN (08)CA 
A23042MEDICARE UPIN (02) 

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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 1790704286, 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 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
7
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
0
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
0
Unchanged
Pos 7
4
Doubled → 8
Pos 8
2
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
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 9 → 18 → 9 7 → 14 → 5 4 → 8 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 8 + 0 + 1 + 4 + 0 + 8 + 2 + 1 + 6 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1790704286.

Other Providers at the Same Location


The following 10 providers are registered at the same or a nearby location.

Internal Medicine (Hematology & Oncology)
2929 K ST, SUITE 200
SACRAMENTO, CA 95816
Dietitian, Registered
2929 K ST, SUITE 300
SACRAMENTO, CA 95816
Dietitian, Registered
2929 K ST, SUITE 300
SACRAMENTO, CA 95816
Nurse Practitioner
2929 K ST, SUITE 300
SACRAMENTO, CA 95816
Internal Medicine
2929 K ST, 3RD FLOOR
SACRAMENTO, CA 95816
Pediatrics (Pediatric Cardiology)
2929 K ST, SUITE 200
SACRAMENTO, CA 95816
Pediatrics (Pediatric Cardiology)
2929 K ST, SUITE 200
SACRAMENTO, CA 95816
Pediatrics
2929 K ST, SUITE 200
SACRAMENTO, CA 95816
Pediatrics (Pediatric Cardiology)
2929 K ST, SUITE 200
SACRAMENTO, CA 95816
Nurse Practitioner
2929 K ST, SUITE 300
SACRAMENTO, CA 95816

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1790704286, enumerated as an "individual" on July 18, 2006.

The provider is located at 2929 K ST SUITE 200 SACRAMENTO, CA 95816 and the phone number is (916) 374-5500.

Internal Medicine with taxonomy code 207RX0202X and a focus in Medical Oncology.

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