ROBERT D HENRETIG M.D.
NPI 1366463879
Radiology - Diagnostic Radiology in San Luis Obispo, CA

NPI Status: Active since July 21, 2006

Contact Information

2180 JOHNSON AVE
STE A
SAN LUIS OBISPO, CA
ZIP 93401
Phone: (805) 269-1313
Fax: (805) 269-1387

NPI Profile Information
Primary Taxonomy
Insurance Plans Accepted
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Radiology
Diagnostic Radiology

About ROBERT HENRETIG

This page provides the complete NPI Profile along with additional information for Robert Henretig, a provider established in San Luis Obispo, California with a medical specialization in Radiology, focusing in diagnostic radiology . The healthcare provider is registered in the NPI registry with number 1366463879 assigned on July 2006. The practitioner's primary taxonomy code is 2085R0202X with license number G16850 (CA). The provider is registered as an individual and his NPI record was last updated 12 years ago.

NPI: 1366463879
Provider Name: ROBERT D HENRETIG M.D.
Gender: Male
Entity Type: Individual
Location Address: 2180 JOHNSON AVE STE A SAN LUIS OBISPO, CA 93401
Location Phone: (805) 269-1313
Location Fax: (805) 269-1387
Mailing Address: 150 TEJAS PL NIPOMO, CA 93444
Mailing Phone: (805) 929-3211
Mailing Fax: (805) 269-1387
Is Sole Proprietor?: No
Enumeration Date: 07-21-2006
Last Update Date: 01-03-2014
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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: Radiology Diagnostic Radiology
Taxonomy Code: 2085R0202X
Type: Allopathic & Osteopathic Physicians
License No.: G16850
License State: CA
Taxonomy Description: A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Medicare

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Medicaid

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
000194904	MEDICARE ID-TYPE UNSPECIFIED (04)	WA
051847	MEDICARE OSCAR/CERTIFICATION (06)	CA
W1508	MEDICARE PIN (08)	CA
KFHC71031F	MEDICAID (05)	CA
F05213	MEDICARE UPIN (02)	WA
8131633	MEDICAID (05)	WA
551983	MEDICARE OSCAR/CERTIFICATION (06)	CA
W1508E	MEDICARE PIN (08)	CA

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 1366463879, 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 12 → 1 + 2

Pos 4

Unchanged

Pos 5

Doubled → 8

Pos 6

Unchanged

Pos 7

Doubled → 6

Pos 8

Unchanged

Pos 9

Doubled → 14 → 1 + 4

Check

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 4 → 8 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 + 3 + 1 + 2 + 6 + 8 + 6 + 6 + 8 + 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 1366463879.