ROY D GERARD JR. M.D.
NPI 1922157809
Internal Medicine - Nephrology in Tyler, TX

NPI Status: Active since January 09, 2007

Contact Information

1133 MEDICAL DR
TYLER, TX
ZIP 75701
Phone: (903) 595-5486
Fax: (903) 595-5128

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  • Individual
  • Male
  • Internal Medicine
  • Nephrology

About ROY GERARD

This page provides the complete NPI Profile along with additional information for Roy Gerard, an internist established in Tyler, Texas with a medical specialization in Internal Medicine, focusing in nephrology . The healthcare provider is registered in the NPI registry with number 1922157809 assigned on January 2007. The practitioner's primary taxonomy code is 207RN0300X with license number H6825 (TX). The provider is registered as an individual and his NPI record was last updated 3 years ago.

NPI
1922157809
Provider Name
ROY D GERARD JR. M.D.
Gender
Male
Entity Type
Individual
Location Address
1133 MEDICAL DR TYLER, TX 75701
Location Phone
(903) 595-5486
Location Fax
(903) 595-5128
Mailing Address
1133 MEDICAL DR TYLER, TX 75701
Mailing Phone
(903) 595-5486
Mailing Fax
(903) 595-5128
Is Sole Proprietor?
No
Enumeration Date
01-09-2007
Last Update Date
04-20-2023
Code Navigator

An internist like Roy Gerard 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 Nephrology

Taxonomy Code
207RN0300X
Type
Allopathic & Osteopathic Physicians
License No.
H6825
License State
TX
Taxonomy Description
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

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)
1207RN0300XAllopathic & Osteopathic Physicians

Internal Medicine
Nephrology

30926 (OK)

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.

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
200214930 AMEDICAID (05)OK 
129379701MEDICAID (05)TX 
390004246OTHER (01)TXRAILROAD MEDICARE

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Dialysis services, 1 physician visit per month (20 years or older)

Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can’t do their job. A physician visit once a month ensures your treatment is working effectively and adjusts it if necessary. This service is available for individuals aged 20 years and older.

This service was performed 14 times for 11 patients

Dialysis services, 2-3 physician visits per month (20 years or older)

Dialysis is a treatment that performs the function of healthy kidneys if they're not working properly. It removes waste and excess fluid from your blood. 2-3 physician visits per month are recommended for monitoring your health and adjusting your treatment as needed. This service is available for those aged 20 years and older.

This service was performed 86 times for 55 patients

Dialysis services, 4 or more physician visits per month (20 years or older)

Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can't do their job. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.

This service was performed 182 times for 85 patients

Established patient office or other outpatient visit, 20-29 minutes

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

This service was performed 38 times for 36 patients

Established patient office or other outpatient visit, 30-39 minutes

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

This service was performed 217 times for 148 patients

Home dialysis services per month (20 years or older)

Home dialysis services provide kidney treatment for patients aged 20 or older right in their own homes. This service includes necessary equipment, supplies, and support for performing dialysis. It's a convenient option that allows patients to maintain their daily routines while receiving essential care.

This service was performed 139 times for 32 patients

New patient office or other outpatient visit, 45-59 minutes

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

This service was performed 15 times for 15 patients

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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 1922157809, 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
9
Unchanged
Pos 3
2
Doubled → 4
Pos 4
2
Unchanged
Pos 5
1
Doubled → 2
Pos 6
5
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
8
Unchanged
Pos 9
0
Doubled → 0
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 2 → 4 1 → 2 7 → 14 → 5 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 4 + 2 + 2 + 5 + 1 + 4 + 8 + 0 + 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 1922157809.

Other Providers at the Same Location


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

Internal Medicine (Nephrology)
1133 MEDICAL DR
TYLER, TX 75701
Nurse Practitioner (Family)
1133 MEDICAL DR
TYLER, TX 75701
Internal Medicine (Nephrology)
1133 MEDICAL DR
TYLER, TX 75701
Nurse Practitioner (Acute Care)
1133 MEDICAL DR
TYLER, TX 75701
Physician Assistant
1133 MEDICAL DR
TYLER, TX 75701
Internal Medicine (Nephrology)
1133 MEDICAL DR
TYLER, TX 75701
Internal Medicine (Nephrology)
1133 MEDICAL DR
TYLER, TX 75701
Nurse Practitioner (Family)
1133 MEDICAL DR
TYLER, TX 75701
Internal Medicine (Nephrology)
1133 MEDICAL DR
TYLER, TX 75701
Internal Medicine (Nephrology)
1133 MEDICAL DR
TYLER, TX 75701
Internal Medicine (Nephrology)
1133 MEDICAL DR
TYLER, TX 75701
Internal Medicine (Nephrology)
1133 MEDICAL DR
TYLER, TX 75701
Nurse Practitioner
1133 MEDICAL DR
TYLER, TX 75701
Internal Medicine (Nephrology)
1133 MEDICAL DR
TYLER, TX 75701
Internal Medicine (Nephrology)
1133 MEDICAL DR
TYLER, TX 75701
Physician Assistant
1133 MEDICAL DR
TYLER, TX 75701
Internal Medicine (Nephrology)
1133 MEDICAL DR
TYLER, TX 75701
Internal Medicine (Nephrology)
1133 MEDICAL DR
TYLER, TX 75701
Internal Medicine (Nephrology)
1133 MEDICAL DR
TYLER, TX 75701
Internal Medicine (Nephrology)
1133 MEDICAL DR
TYLER, TX 75701

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1922157809, enumerated as an "individual" on January 09, 2007.

The provider is located at 1133 MEDICAL DR TYLER, TX 75701 and the phone number is (903) 595-5486.

Internal Medicine with taxonomy code 207RN0300X and a focus in Nephrology.

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