LEON DENSON ROYSTON JR. PA
NPI 1285679779
Physician Assistant - Medical in Chico, CA

NPI Status: Active since June 18, 2006

Contact Information

2012 FRANKLIN ST
CHICO, CA
ZIP 95928
Phone: (530) 899-4791
Fax: (530) 893-6184

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  • Individual
  • Male
  • Physician Assistant
  • Medical

About LEON ROYSTON

This page provides the complete NPI Profile along with additional information for Leon Royston, a primary care provider established in Chico, California with a medical specialization in Physician Assistant, focusing in medical . The healthcare provider is registered in the NPI registry with number 1285679779 assigned on June 2006. The practitioner's primary taxonomy code is 363AM0700X with license number PA12790 (CA). The provider is registered as an individual and his NPI record was last updated 3 years ago.

NPI
1285679779
Provider Name
LEON DENSON ROYSTON JR. PA
Gender
Male
Entity Type
Individual
Location Address
2012 FRANKLIN ST CHICO, CA 95928
Location Phone
(530) 899-4791
Location Fax
(530) 893-6184
Mailing Address
2012 FRANKLIN ST CHICO, CA 95928
Mailing Phone
(530) 899-4791
Mailing Fax
(530) 893-6184
Is Sole Proprietor?
No
Enumeration Date
06-18-2006
Last Update Date
03-07-2023
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A primary care provider (PCP) like Leon Royston sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, 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

Physician Assistant Medical

Taxonomy Code
363AM0700X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
PA12790
License State
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
PA12790OTHER (01)CALICENSE

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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 1285679779, we treat the final digit (9) 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 9).

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
2
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
5
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
7
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
7
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
9
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 8 → 16 → 7 6 → 12 → 3 9 → 18 → 9 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 6 + 5 + 1 + 2 + 7 + 1 + 8 + 7 + 1 + 4 + 24 = 71

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

The next multiple of ten after 71 is 80. The difference is the calculated check digit.

80 - 71 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1285679779.

Other Providers at the Same Location


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

Clinic/Center (Primary Care)
2012 FRANKLIN ST
CHICO, CA 95928
Nurse Practitioner (Family)
2012 FRANKLIN ST
CHICO, CA 95928
Nurse Practitioner (Family)
2012 FRANKLIN ST
CHICO, CA 95928

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1285679779, enumerated as an "individual" on June 18, 2006.

The provider is located at 2012 FRANKLIN ST CHICO, CA 95928 and the phone number is (530) 899-4791.

Physician Assistant with taxonomy code 363AM0700X and a focus in Medical.

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