LES T SANDKNOP D.O.
NPI 1336139807
Family Medicine in Rockwall, TX
NPI Status: Active since October 26, 2005
Contact Information
1005 W RALPH HALL PKWY
SUITE 201
ROCKWALL, TX
ZIP 75032
Phone: (972) 771-9081
Fax: (972) 772-7102
- Individual
- Male
- Years of Experience 48
- Family Medicine
- Accepts Insurance
- Accepts Medicare Approved Payment
- PECOS Enrolled
- CLIA Number: 45D2150279
- CLIA Cert. Type: Physician Office
- CLIA Exp. Date: 12-14-2027
About LES SANDKNOP
This page provides the complete NPI Profile along with additional information for Les Sandknop, a primary care provider established in Rockwall, Texas with a medical specialization in Family Medicine and more than 48 years of experience. He graduated from At Still University Of Health Sciences, College Of Osteo Med, Kirksville in 1978. The healthcare provider is registered in the NPI registry with number 1336139807 assigned on October 2005. The practitioner's primary taxonomy code is 207Q00000X with license number F5359 (TX). The provider is registered as an individual and his NPI record was last updated 8 years ago.
- NPI
- 1336139807
- Provider Name
- LES T SANDKNOP D.O.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1005 W RALPH HALL PKWY SUITE 201 ROCKWALL, TX 75032
- Location Phone
- (972) 771-9081
- Location Fax
- (972) 772-7102
- Mailing Address
- 1005 W RALPH HALL PKWY STE 221 ROCKWALL, TX 75032
- Mailing Phone
- (972) 771-9000
- Mailing Fax
- (972) 772-7102
- Medical School Name
- AT STILL UNIVERSITY OF HEALTH SCIENCES, COLLEGE OF OSTEO MED, KIRKSVILLE
- Graduation Year
- 1978
- Is Sole Proprietor?
- No
- Enumeration Date
- 10-26-2005
- Last Update Date
- 11-08-2018
- Code Navigator
A primary care provider (PCP) like Les Sandknop 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
Family Medicine
- Taxonomy Code
- 207Q00000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- F5359
- License State
- TX
- Taxonomy Description
- Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Choice Bronze HSA - HMO
- Choice Bronze HSA + Vision + Adult Dental - HMO
- Complete Gold - HMO
- Complete Gold + Vision + Adult Dental - HMO
- Complete Silver - HMO
- Complete Silver + Vision + Adult Dental - HMO
- Elite Gold - HMO
- Elite Gold + Vision + Adult Dental - HMO
- Everyday Bronze - HMO
- Everyday Bronze + Vision + Adult Dental - HMO
- Choice Bronze HSA (QualChoice) - POS
- Complete Gold - PPO
- Complete Gold + Vision + Adult Dental - PPO
- Connected Silver - PPO
- Connected Silver (QualChoice) - POS
- Connected Silver (QualChoice) + Vision + Adult Dental - POS
- Connected Silver (QualChoiceLife) - PPO
- Connected Silver (QualChoiceLife) + Vision + Adult Dental - PPO
- Connected Silver + Vision + Adult Dental - PPO
- Elite Bronze - PPO
- Complete Gold - EPO
- Complete Gold + Vision + Adult Dental - EPO
- Elite Bronze - EPO
- Elite Bronze + Vision + Adult Dental - EPO
- Elite Gold - EPO
- Elite Gold + Vision + Adult Dental - EPO
- Everyday Bronze - EPO
- Everyday Bronze + Vision + Adult Dental - EPO
- Focused Silver - EPO
- Focused Silver + Vision + Adult Dental - EPO
- Complete Gold - EPO
- Complete Gold + Vision + Adult Dental - EPO
- Enhanced Diabetes Care Silver with $0 Drug Options - EPO
- Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental - EPO
- Everyday Gold - EPO
- Everyday Gold + Vision + Adult Dental - EPO
- Focused Silver - EPO
- Focused Silver + Vision + Adult Dental - EPO
- Standard Gold - EPO
- Standard Gold + Vision + Adult Dental - EPO
- Elite Bronze - PPO
- Elite Bronze + Vision + Adult Dental - PPO
- Elite Gold - PPO
- Elite Gold + Vision + Adult Dental - PPO
- Enhanced Asthma/COPD Care Silver with $0 Drug Options - PPO
- Enhanced Asthma/COPD Care Silver with $0 Drug Options + Vision + Adult Dental - PPO
- Enhanced Diabetes Care Silver with $0 Drug Options - PPO
- Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental - PPO
- Everyday Bronze - PPO
- Everyday Bronze + Vision + Adult Dental - PPO
- Blue Advantage Bronze HMO? 204 - HMO
- Blue Advantage Bronze HMO? 301 - HMO
- Blue Advantage Bronze HMO? Standard - HMO
- Blue Advantage Gold HMO? 206 - HMO
- Blue Advantage Gold HMO? 603 - HMO
- Blue Advantage Gold HMO? Standard - HMO
- Blue Advantage Plus Bronze? 303 - POS
- Blue Advantage Plus Bronze? 305 - POS
- Blue Advantage Plus Bronze? Standard - POS
- Blue Advantage Plus Gold? 203 - POS
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Medicare Participation & PECOS Enrollment Status
Les Sandknop is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.
Les Sandknop is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Is the provider registered in PECOS? Yes
PECOS PAC ID: 4688569254
What is the PECOS Associate Control ID?
A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.PECOS Enrollment ID: I20100304000807
What is the Provider Enrollment ID?
The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.Accepts Medicare Assignment? Yes
What does it mean "accepts medicare assignment"?
When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): Yes
Eligible to Order or Refer Power Mobility Devices: Yes
Provider Referred Orders for Durable Medical Equipment, Devices & Supplies
The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.
Durable Medical Equipment
DME-Other DME (DE017N)
Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips (HCPCS:A4253)
18 DME suppliers used 49 Medicare Claims 141 Services Paid
DME-Medical/Surgical Supplies (DA000N)
Lancets, per box of 100 (HCPCS:A4259)
8 DME suppliers used 16 Medicare Claims 19 Services Paid
DME-Other DME (DE000N)
Administration set, with small volume nonfiltered pneumatic nebulizer, disposable (HCPCS:A7003)
1 DME suppliers used 18 Medicare Claims 36 Services Paid
DME-Other DME (DE000N)
Small volume nonfiltered pneumatic nebulizer, disposable (HCPCS:A7004)
1 DME suppliers used 18 Medicare Claims 36 Services Paid
DME-Oxygen and Supplies (DC000N)
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing (HCPCS:E0431)
4 DME suppliers used 21 Medicare Claims 22 Services Paid
DME-Oxygen and Supplies (DC002N)
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate (HCPCS:E1390)
6 DME suppliers used 62 Medicare Claims 63 Services Paid
DME-Wheelchairs (DD000N)
Standard wheelchair (HCPCS:K0001)
2 DME suppliers used 12 Medicare Claims 12 Services Paid
DME-Other DME (DE017N)
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service (HCPCS:K0553)
3 DME suppliers used 33 Medicare Claims 33 Services Paid
DME-Other DME (DE000N)
Pharmacy dispensing fee for inhalation drug(s); per 30 days (HCPCS:Q0513)
7 DME suppliers used 27 Medicare Claims 27 Services Paid
Drugs Administered Through DME
DME-Drugs Administered Through DME (DG006N)
Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg (HCPCS:J7613)
7 DME suppliers used 21 Medicare Claims 4801 Services Paid
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.
Advance care planning, first 30 minutes
Alcohol and/or substance (other than tobacco) misuse structured assessment (e.g., audit, dast), and brief intervention 15 to 30 minutes
Annual depression screening, 5 to 15 minutes
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
Assessment of emotional or behavioral problems
Automated urinalysis test
Complex chronic care management services for two or more chronic conditions, first 60 minutes of clinical staff time directed by health care professional, per calendar month
Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza
Detection test by immunoassay with direct visual observation for influenza virus
Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19)
Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)
Established patient office or other outpatient visit, 20-29 minutes
Established patient office or other outpatient visit, 30-39 minutes
Established patient office or other outpatient visit, 40-54 minutes
Evaluation of psychological test, first hour
Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment
Injection of drug or substance under skin or into muscle
Injection, ceftriaxone sodium, per 250 mg
Injection, dexamethasone sodium phosphate, 1 mg
Injection, ketorolac tromethamine, per 15 mg
Injection, triamcinolone acetonide, not otherwise specified, 10 mg
Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes
Management using the results of remote vital sign monitoring per calendar month, first 20 minutes
New patient office or other outpatient visit, 30-44 minutes
New patient office or other outpatient visit, 45-59 minutes
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and
Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a
Remote monitoring of physiologic parameters, initial set-up and patient education on use of equipment
Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
Smoking and tobacco use intensive counseling, 4-10 minutes
Telephone medical discussion with physician, 21-30 minutes
Telephone medical discussion with physician, 5-10 minutes
Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.
This service was performed 13 times for 13 patientsThis service involves a structured evaluation of your alcohol or substance use habits. It identifies potential issues and provides brief counseling to help modify harmful behaviors. It's a short, 15-30 minute process, focused on promoting healthier choices.
This service was performed 79 times for 79 patientsAn annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.
This service was performed 253 times for 253 patientsAn annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
This service was performed 181 times for 181 patientsAssessment of emotional or behavioral problems involves a thorough evaluation of your feelings, thoughts, and behaviors. It's a process where professionals study patterns over time to identify potential issues like anxiety, depression, or other mental health conditions.
This service was performed 20 times for 11 patientsAn automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
This service was performed 90 times for 74 patientsComplex chronic care management is a service for patients with two or more long-term health conditions. It involves a healthcare professional directing clinical staff in providing care for the first 60 minutes each month. This helps manage your health conditions effectively.
This service was performed 1,838 times for 378 patientsThis test uses a method called immunoassay to identify severe acute respiratory syndrome coronavirus and influenza. It works by detecting specific proteins (antigens) in a sample, like a nasal swab. It's a powerful tool in diagnosing these viral infections.
This service was performed 26 times for 26 patientsThis is a test that identifies the influenza virus in your body. It works by using an immunoassay, a method that detects the presence of the virus through an immune response. The results are directly observable, making it a quick and efficient way to diagnose flu.
This service was performed 68 times for 33 patientsThis is a test to detect COVID-19, the virus causing severe respiratory illness. It uses a method called immunoassay, which identifies the virus by its unique proteins. The test is directly observed for accuracy. It helps determine if you're currently infected.
This service was performed 45 times for 43 patientsA detection test by immunoassay for Group A Strep is a quick procedure to identify a bacterial infection in your throat. It involves taking a throat swab and applying it to a test strip, which changes color if Strep bacteria are present.
This service was performed 46 times for 39 patientsThis 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 34 times for 34 patientsThis 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 3,407 times for 1,101 patientsThis service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
This service was performed 28 times for 22 patientsThis procedure involves a professional assessing your mental health using standardized tests. It's the initial hour of a process that helps understand your emotional well-being and cognitive abilities. It's completely non-invasive and confidential.
This service was performed 131 times for 130 patientsAn Initial Preventive Physical Examination, also known as a "Welcome to Medicare" visit, is a one-time, face-to-face visit during your first 12 months of Medicare enrollment. It includes a review of your health, as well as education and counseling about preventive services and further screenings.
This service was performed 13 times for 13 patientsThis procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
This service was performed 241 times for 180 patientsCeftriaxone sodium is an antibiotic injection used to treat a variety of bacterial infections. Each injection contains 250 mg of the medicine. It works by stopping the growth of bacteria in your body.
This service was performed 142 times for 59 patientsDexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.
This service was performed 733 times for 141 patientsKetorolac tromethamine is a medication administered through injection, often used to manage moderate to severe pain. Each 15 mg dose helps to reduce hormones causing inflammation and pain in the body. It is not recommended for long-term use.
This service was performed 61 times for 14 patientsTriamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.
This service was performed 50 times for 13 patientsThis service involves analyzing your vital signs, like heart rate and blood pressure, remotely collected over a month. Each additional 20 minutes spent on management refers to extra time spent reviewing, interpreting your data, and planning your care. It's a critical part of ensuring your wellbeing.
This service was performed 23 times for 12 patientsThis service involves reviewing and managing your health data, which is remotely monitored and collected. Your vital signs like heart rate and blood pressure are tracked regularly throughout the month. The first 20 minutes of this data analysis per month is included in this service.
This service was performed 120 times for 39 patientsThis service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
This service was performed 83 times for 83 patientsThis 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 11 times for 11 patientsThis is a service where a doctor or authorized practitioner certifies that you require Medicare-covered home health services. They will communicate with the home health agency and review reports on your health status to ensure you receive appropriate care. This does not involve an in-person visit.
This service was performed 60 times for 57 patientsThis procedure involves a doctor or approved practitioner reviewing your health status and re-certifying your need for Medicare-covered home health services. It includes communication with the home health agency and assessment of your health reports, even when you're not physically present.
This service was performed 172 times for 59 patientsRemote monitoring of physiologic parameters involves using special equipment to track vital signs like heart rate and blood pressure from a distance. The initial set-up includes installing the device and teaching the patient how to use it correctly for accurate readings.
This service was performed 37 times for 34 patientsThis service involves using devices to remotely track body functions like heart rate or blood pressure. These devices, provided initially, record data daily or send alerts if readings are abnormal. The service is renewed every 30 days.
This service was performed 107 times for 38 patientsAn electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
This service was performed 52 times for 51 patientsThis service provides brief, intensive counseling (4-10 minutes) to support you in quitting smoking or tobacco use. It involves discussing the risks of tobacco use, benefits of quitting, and strategies to help you stop. It's a critical step towards a healthier lifestyle.
This service was performed 19 times for 16 patientsThis service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.
This service was performed 47 times for 47 patientsA telephone medical discussion with a physician is a brief, 5-10 minute call where you can discuss your health concerns. It's a convenient way to receive medical advice without needing to visit a clinic. It's important to prepare questions in advance to make the most of this time.
This service was performed 139 times for 139 patientsPhysician Visit Costs
The typical physician office visit costs for Medicare beneficiaries in this area are: $21.23 for a new patient copayment and $24.26 for an established patient copayment.
The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.
For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.
The prices below reflect the costs for new and established patients in the 75032 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99203
- Average New Patient Price $84.92
- Minimum New Patient Price $54.84
- Maximum New Patient Price $166.88
- Average New Patient Copayment $21.23
- Minimum New Patient Copayment $13.71
- Maximum New Patient Copayment $41.72
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99214
- Average Established Patient Price $97.05
- Minimum Established Patient Price $17.52
- Maximum Established Patient Price $136.11
- Average Established Patient Copayment $24.26
- Minimum Established Patient Copayment $4.38
- Maximum Established Patient Copayment $34.02
* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.
Find Provider Hospital Affiliations - Privileges
Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.
Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Les Sandknop is affiliated with the following medical facilities:
| Hospital Name | Address | Phone | Hospital Type | Overall Rating |
|---|---|---|---|---|
| HUNT REGIONAL MEDICAL CENTER | 4215 JOE RAMSEY BLVD E GREENVILLE, TX 75401 | (903) 408-5000 | Acute Care Hospitals | |
| BAYLOR SCOTT AND WHITE MEDICAL CENTER LAKE POINTE | 6800 SCENIC DR ROWLETT, TX 75088 | (972) 412-2273 | Acute Care Hospitals | |
| TEXAS HEALTH PRESBYTERIAN HOSPITAL ROCKWALL | 3150 HORIZON ROAD ROCKWALL, TX 75032 | (469) 698-1000 | Acute Care Hospitals |
CLIA Information
The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:
- CLIA Number
- 45D2150279
- Facility Type
- Physician Office
- Certificate Effective Date
- December 15, 2025
- Certificate Expiration Date
- December 14, 2027
- Laboratory Director
- JOSEPH COX
- Certificate Type
- Certificate of Accreditation
- Certificate Type Description
- This is a CLIA certificate is issued to Les Sandknop on the basis of the laboratory's accreditation by an accreditation organization approved by CMS. This type of certificate is issued to a laboratories tha perform nonwaived (moderate and/or high complexity) testing.
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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 1336139807, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 63 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 19 providers are registered at the same or a nearby location.
ROCKWALL, TX 75032
ROCKWALL, TX 75032
ROCKWALL, TX 75032
ROCKWALL, TX 75032
ROCKWALL, TX 75032
ROCKWALL, TX 75032
ROCKWALL, TX 75032
ROCKWALL, TX 75032
ROCKWALL, TX 75032
ROCKWALL, TX 75032
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1336139807, enumerated as an "individual" on October 26, 2005.
The provider is located at 1005 W RALPH HALL PKWY SUITE 201 ROCKWALL, TX 75032 and the phone number is (972) 771-9081.
Family Medicine with taxonomy code 207Q00000X.
The provider might be accepting Accepts: Ambetter from Arizona Complete Health, Ambetter. Please consult your insurance carrier or call the provider to verify.
Les Sandknop is affiliated with: HUNT REGIONAL MEDICAL CENTER, BAYLOR SCOTT AND WHITE MEDICAL CENTER LAKE POINTE and TEXAS HEALTH PRESBYTERIAN HOSPITAL ROCKWALL.