JOHN RICHARD GRAYBILL MD
NPI 1710094875
Internal Medicine - Infectious Disease in San Antonio, TX

NPI Status: Active since August 24, 2006

Contact Information

4502 MEDICAL DR
SAN ANTONIO, TX
ZIP 78229
Phone: (210) 358-4000
Fax: (210) 358-0647

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  • Individual
  • Male
  • Internal Medicine
  • Infectious Disease

About JOHN GRAYBILL

This page provides the complete NPI Profile along with additional information for John Graybill, an internist established in San Antonio, Texas with a medical specialization in Internal Medicine, focusing in infectious disease . The healthcare provider is registered in the NPI registry with number 1710094875 assigned on August 2006. The practitioner's primary taxonomy code is 207RI0200X with license number E3560 (TX). The provider is registered as an individual and his NPI record was last updated 15 years ago.

NPI
1710094875
Provider Name
JOHN RICHARD GRAYBILL MD
Gender
Male
Entity Type
Individual
Location Address
4502 MEDICAL DR SAN ANTONIO, TX 78229
Location Phone
(210) 358-4000
Location Fax
(210) 358-0647
Mailing Address
7703 FLOYD CURL DR MC 7977 SAN ANTONIO, TX 78229
Mailing Phone
(210) 450-4000
Mailing Fax
(210) 358-0647
Is Sole Proprietor?
No
Enumeration Date
08-24-2006
Last Update Date
03-30-2011
Code Navigator

An internist like John Graybill 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 Infectious Disease

Taxonomy Code
207RI0200X
Type
Allopathic & Osteopathic Physicians
License No.
E3560
License State
TX
Taxonomy Description
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.

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
041972302MEDICAID (05)TX 
TXB105083MEDICARE PIN (08)TX 

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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 1710094875, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).

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
1
Doubled → 2
Pos 4
0
Unchanged
Pos 5
0
Doubled → 0
Pos 6
9
Unchanged
Pos 7
4
Doubled → 8
Pos 8
8
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
5
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 1 → 2 0 → 0 4 → 8 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 2 + 0 + 0 + 9 + 8 + 8 + 1 + 4 + 24 = 65

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

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1710094875.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Emergency Medicine
4502 MEDICAL DR
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Pathology (Anatomic Pathology & Clinical Pathology)
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Emergency Medicine
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SAN ANTONIO, TX 78229
Physician Assistant
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Physical Medicine & Rehabilitation
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SAN ANTONIO, TX 78229
Anesthesiology
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Emergency Medicine
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Physician Assistant
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Anesthesiology
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Hospitalist
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Advanced Practice Midwife
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SAN ANTONIO, TX 78229
Pathology (Anatomic Pathology)
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Pediatrics
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Nurse Anesthetist, Certified Registered
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SAN ANTONIO, TX 78229
Internal Medicine (Nephrology)
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Family Medicine (Geriatric Medicine)
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Nurse Anesthetist, Certified Registered
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Pathology (Anatomic Pathology & Clinical Pathology)
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Pediatrics (Neonatal-Perinatal Medicine)
4502 MEDICAL DR
SAN ANTONIO, TX 78229

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1710094875, enumerated as an "individual" on August 24, 2006.

The provider is located at 4502 MEDICAL DR SAN ANTONIO, TX 78229 and the phone number is (210) 358-4000.

Internal Medicine with taxonomy code 207RI0200X and a focus in Infectious Disease.

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