DAVID CALLAHAN SCHAFF M.D.
NPI 1861441479
Radiology - Diagnostic Radiology in Nacogdoches, TX

NPI Status: Active since May 09, 2006

Contact Information

1023 N MOUND ST
SUITE F
NACOGDOCHES, TX
ZIP 75961
Phone: (936) 569-0841

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  • Individual
  • Male
  • Radiology
  • Diagnostic Radiology

About DAVID SCHAFF

This page provides the complete NPI Profile along with additional information for David Schaff, a provider established in Nacogdoches, Texas with a medical specialization in Radiology, focusing in diagnostic radiology . The healthcare provider is registered in the NPI registry with number 1861441479 assigned on May 2006. The practitioner's primary taxonomy code is 2085R0202X with license number F9011 (TX). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1861441479
Provider Name
DAVID CALLAHAN SCHAFF M.D.
Gender
Male
Entity Type
Individual
Location Address
1023 N MOUND ST SUITE F NACOGDOCHES, TX 75961
Location Phone
(936) 569-0841
Mailing Address
PO BOX 5370 LONGVIEW, TX 75608
Mailing Phone
(903) 663-4800
Is Sole Proprietor?
Yes
Enumeration Date
05-09-2006
Last Update Date
07-08-2007
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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.
F9011
License State
TX
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:

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
81R433MEDICARE ID-TYPE UNSPECIFIED (04)TX 
B88015MEDICARE 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 1861441479, 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 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
8
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
1
Unchanged
Pos 5
4
Doubled → 8
Pos 6
4
Unchanged
Pos 7
1
Doubled → 2
Pos 8
4
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 6 → 12 → 3 4 → 8 1 → 2 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 + 1 + 2 + 1 + 8 + 4 + 2 + 4 + 1 + 4 + 24 = 61

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

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1861441479.

Other Providers at the Same Location


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

Family Medicine
1023 N MOUND ST, SUITE A
NACOGDOCHES, TX 75961
Psychiatry & Neurology (Neurology)
1023 N MOUND ST, SUITE I
NACOGDOCHES, TX 75961
Clinic/Center
1023 N MOUND ST, SUITE L
NACOGDOCHES, TX 75961
Family Medicine
1023 N MOUND ST, SUITE A
NACOGDOCHES, TX 75961
Dentist (Oral and Maxillofacial Surgery)
1023 N MOUND ST, SUITE D
NACOGDOCHES, TX 75961
Orthopaedic Surgery
1023 N MOUND ST, SUITE E
NACOGDOCHES, TX 75961
Family Medicine
1023 N MOUND ST, SUITE A
NACOGDOCHES, TX 75961
Internal Medicine (Interventional Cardiology)
1023 N MOUND ST, SUITE K
NACOGDOCHES, TX 75961
Family Medicine
1023 N MOUND ST
NACOGDOCHES, TX 75961
Nuclear Medicine (Nuclear Cardiology)
1023 N MOUND ST, SUITE K
NACOGDOCHES, TX 75961

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1861441479, enumerated as an "individual" on May 09, 2006.

The provider is located at 1023 N MOUND ST SUITE F NACOGDOCHES, TX 75961 and the phone number is (936) 569-0841.

Radiology with taxonomy code 2085R0202X and a focus in Diagnostic Radiology.

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