DR. GONZALO PLATON OBNIAL M.D.
NPI 1497909931
Surgery - Vascular Surgery in Walnut Creek, CA


Quality Rating: 95.97 out of 100 score

NPI Status: Active since November 11, 2008

Contact Information

2637 SHADELANDS DR
WALNUT CREEK, CA
ZIP 94598
Phone: (925) 932-6330
Fax: (925) 932-0139

Get Directions Write a Review

  • Individual
  • Male
  • Years of Experience 26
  • Surgery
  • Vascular Surgery
  • Accepts Medicare Approved Payment
  • PECOS Enrolled
  • Medicare Quality Reporting

About GONZALO OBNIAL

This page provides the complete NPI Profile along with additional information for Gonzalo Obnial, a provider established in Walnut Creek, California with a medical specialization in Surgery, focusing in vascular surgery and more than 26 years of experience. The healthcare provider is registered in the NPI registry with number 1497909931 assigned on November 2008. The practitioner's primary taxonomy code is 2086S0129X with license number A112342 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1497909931
Provider Name
DR. GONZALO PLATON OBNIAL M.D.
Gender
Male
Entity Type
Individual
Location Address
2637 SHADELANDS DR WALNUT CREEK, CA 94598
Location Phone
(925) 932-6330
Location Fax
(925) 932-0139
Mailing Address
2637 SHADELANDS DR WALNUT CREEK, CA 94598
Mailing Phone
(925) 932-6330
Mailing Fax
(925) 932-0139
Medical School Name
OTHER
Graduation Year
2000
Is Sole Proprietor?
Yes
Enumeration Date
11-11-2008
Last Update Date
02-28-2025
Code Navigator

Location Map

Secondary Locations

  • 350 30th St Ste 210
    Oakland, CA 94609
    (510) 832-6131

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

Surgery Vascular Surgery

Taxonomy Code
2086S0129X
Type
Allopathic & Osteopathic Physicians
License No.
A112342
License State
CA
Taxonomy Description
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.

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)
1208600000XAllopathic & Osteopathic Physicians

Surgery

4301091346 (MI)

Medicare Participation & PECOS Enrollment Status

Gonzalo Obnial 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.

Gonzalo Obnial 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: 6507051851

    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: I20101111001039

    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

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.

Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts

This procedure involves using sound waves to create images of your aorta, vena cava, groin vessels, or bypass grafts. It helps to detect abnormalities or blockages, ensuring your blood flows smoothly. It's painless and non-invasive.

This service was performed 56 times for 50 patients

Destruction of first incompetent vein of arm or leg using radiofrequency and imaging guidance

This procedure involves using radiofrequency energy, a type of heat energy, to close off an unhealthy vein in your arm or leg. Imaging guidance helps ensure precise targeting of the vein. This helps improve blood flow by rerouting it through healthier veins.

This service was performed 16 times for 13 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 372 times for 261 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 228 times for 185 patients

Injection, cefazolin sodium, 500 mg

Cefazolin sodium is an antibiotic injection used to treat a variety of bacterial infections. By stopping the growth of bacteria, this medication helps in the treatment of infections. The 500 mg dosage refers to the strength of the medicine.

This service was performed 32 times for 16 patients

Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist

This procedure involves inserting a needle or tube into your hemodialysis circuit, a system that cleans your blood when your kidneys can't. A balloon is then used to widen a narrow section of this circuit. A radiologist reviews the procedure to ensure accuracy.

This service was performed 30 times for 25 patients

Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist

This procedure involves inserting a needle or tube into your hemodialysis circuit, a system that cleans your blood when your kidneys can't. A balloon is then used to widen a narrow section of this circuit. A radiologist reviews the procedure to ensure accuracy.

This service was performed 15 times for 14 patients

Insertion of stent in groin artery, initial vessel

A stent is a small, mesh tube that's used to treat narrow or weak arteries. In this procedure, a stent is placed in your groin artery to help keep it open and improve blood flow. It's inserted through a small incision and guided to the problem area.

This service was performed 11 times for 11 patients

Leg revascularization (restoring blood flow)

Leg revascularization is a procedure aimed at restoring proper blood flow to your legs. It's often needed when blood vessels in your legs are blocked or narrowed. The process may involve surgery or less invasive methods to remove or bypass blockages, helping to alleviate pain and prevent serious complications.

This service was performed for 83 patients

Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml

Low osmolar contrast material with 300-399 mg/ml iodine concentration is a diagnostic tool used in imaging procedures. It helps to enhance the visibility of specific areas in the body, aiding in accurate diagnosis. It's safe and generally well-tolerated by patients.

This service was performed 3,276 times for 75 patients

New patient office or other outpatient visit, 30-44 minutes

This 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 217 times for 217 patients

Removal of plaque in arteries of leg

This procedure, known as atherectomy, involves clearing out plaque buildup in the leg arteries. Plaque can restrict blood flow, causing discomfort and potential health issues. A special device is inserted into the artery to carefully remove the plaque, improving blood circulation.

This service was performed 27 times for 23 patients

Review by radiologist of abdominal aorta image

This is a procedure where a radiologist, a doctor specialized in medical imaging, examines an image of your abdominal aorta. The abdominal aorta is the large blood vessel that carries blood to your lower body. The radiologist checks for any abnormalities to ensure your overall vascular health.

This service was performed 18 times for 18 patients

Review by radiologist of arm or leg artery image

This procedure involves a radiologist examining images of your arm or leg arteries. These images are obtained through a non-invasive method, like an ultrasound or CT scan. The radiologist reviews these images to identify any abnormalities, such as blockages or narrowing, which can affect blood flow.

This service was performed 58 times for 50 patients

Revision of hemodialysis graft

A revision of a hemodialysis graft is a procedure to fix issues with the graft used for dialysis. This can involve clearing blockages or improving blood flow. It helps ensure the graft continues to work effectively for your dialysis treatments.

This service was performed 12 times for 11 patients

Ultrasonic guidance for blood vessel access

Ultrasonic guidance for blood vessel access is a medical procedure where sound waves are used to create images of your blood vessels. This helps doctors to accurately locate and access the vessels for treatments or tests, ensuring safety and precision.

This service was performed 43 times for 37 patients

Ultrasonic guidance for blood vessel access

Ultrasonic guidance for blood vessel access is a medical procedure where sound waves are used to create images of your blood vessels. This helps doctors to accurately locate and access the vessels for treatments or tests, ensuring safety and precision.

This service was performed 90 times for 77 patients

Ultrasound of both sides of head and neck blood flow

An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.

This service was performed 124 times for 107 patients

Ultrasound of hemodialysis access

An ultrasound of hemodialysis access is a non-invasive procedure that uses sound waves to create images of your dialysis access site. It helps monitor the access site's health and detect any potential issues like blockages or narrowing.

This service was performed 106 times for 67 patients

Ultrasound of leg arteries or artery grafts

An ultrasound of leg arteries or artery grafts is a non-invasive imaging test. It uses high-frequency sound waves to capture live images from inside your body, specifically your leg arteries or grafts. This helps in detecting any blockages or abnormalities.

This service was performed 333 times for 260 patients

Ultrasound study of arm and leg arteries

An ultrasound study of arm and leg arteries is a non-invasive procedure that uses sound waves to create images of your arteries. It helps in checking blood flow, identifying blockages, or detecting other abnormalities in your arteries.

This service was performed 292 times for 234 patients

Ultrasound study of arm or leg veins with compression and maneuvers

An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.

This service was performed 140 times for 136 patients

Ultrasound study of one arm or leg veins with compression and maneuvers

This is a non-invasive procedure using sound waves to visualize veins in an arm or leg. It involves applying gentle pressure and performing certain movements. It helps identify any abnormal blood flow or clots, ensuring vascular health.

This service was performed 42 times for 24 patients

Varicose vein removal

Varicose vein removal is a procedure to eliminate enlarged and twisted veins, commonly found in legs. It's performed when these veins cause discomfort or skin problems. The procedure may involve laser treatment, sclerotherapy (injecting a solution to close the veins), or surgery to remove the veins. It's generally safe and helps to alleviate symptoms.

This service was performed for 41 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $26.12 for a new patient copayment and $21.22 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 94598 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99203

  • Average New Patient Price $104.51
  • Minimum New Patient Price $69
  • Maximum New Patient Price $202.35
  • Average New Patient Copayment $26.12
  • Minimum New Patient Copayment $17.25
  • Maximum New Patient Copayment $50.58

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99213

  • Average Established Patient Price $84.91
  • Minimum Established Patient Price $23.44
  • Maximum Established Patient Price $166.46
  • Average Established Patient Copayment $21.22
  • Minimum Established Patient Copayment $5.86
  • Maximum Established Patient Copayment $41.61

* 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.

Overall MIPS Quality Performance

The provider participated in CMS Quality Payment Program under the Merit-based Incentive Payment System (MIPS) and has an overall final score of 95.97, based on four performance areas: quality, improvement activities, promoting interoperability, and cost. The purpose of this information is to help people with Medicare make informed decisions and incentivize doctors and clinicians to maximize performance. The provider also has detailed performance information the following quality measures: .

The Merit-based Incentive Payment System (MIPS) is a way providers could use to participate in CMS Quality Payment Program (QPP). The MIPS program affects clinician reimbursement for Part B covered professional services and also rewards them for improving the quality of patient care and outcomes.

  • Final Score: 95.97 out of 100

    The MIPS program evaluates providers across multiple categories with a specific weight for each category resulting a in a MIPS final score that ranges from 0 to 100 points. The MIPS Final Score determines whether providers receive a negative, neutral or positive MIPS payment adjustment.

  • Quality Score: 76.85

    The Quality category assesses providers performance on clinical practices and patient outcomes under the traditional MIPS program. The quality measures help identify the quality of healthcare processes, outcomes, and patient experiences. The Quality measure category compromises 40% providers final MPIS scores.

    There are six collection types for MIPS quality measures: Electronic Clinical Quality Measures (eCQMs), MIPS Clinical Quality Measures (CQMs), Qualified Clinical Data Registry (QCDR) Measures, Medicare Part B claims measures, CMS Web Interface measures and The Consumer Assessment of Healthcare Providers and Systems (CAHPS) for MIPS Survey.

  • Promoting Interoperability Score: 100

    The Interoperability category measures the providers ability to use technology to exchange and make use of healthcare information in a way that is less burdensome and improves outcomes. The Interoperability measure category compromises 25% providers final MPIS scores.

    The MIPS Interoperability measure focuses on the use of certified electronic health record technology (CEHRT) to improve patient access health information, the exchange of information between clinicians and pharmacies and the systematic collection, analysis, and interpretation of healthcare data.

  • Improvement Activities Score: 40

    The Improvement Activities performance category evaluates the providers participation in clinical activities that support the improvement of clinical practice, care delivery, and outcomes. Providers have the option to choose 2 to 4 activities from an inventory of over 100 improvement activities. Providers typically choose the activities that best fit their needs. The improvement activities measure category compromises 15% providers final MPIS scores.

    The Improvement measures aim to better patient engagement, patient safety and other areas of patient care. The Improvement Activities category compromises 15% of providers final MPIS scores.

  • Cost Score: 76.38

    The Cost performance category asses the amount and types of services provided and how clinicians coordinate care and seek improvement of health outcomes by ensuring patients receive the appropriate services.

    Although providers don't determine the price of healthcare services they are important in delivering high-quality care at a reasonable cost. The Cost measures category compromises 20% of providers final MPIS scores.

  • Cost Score: 76.38

    The Cost performance category asses the amount and types of services provided and how clinicians coordinate care and seek improvement of health outcomes by ensuring patients receive the appropriate services.

    Although providers don't determine the price of healthcare services they are important in delivering high-quality care at a reasonable cost. The Cost measures category compromises 20% of providers final MPIS scores.

MIPS Quality Measures

The following performance measures were reported under the Merit-Based Incentive Payment System (MIPS) and Qualified Clinical Data Registry (QCDR) quality measures program.

Quality Measure Performance Number of Patients
Appropriate Use of DXA Scans in Women Under 65 Years Who Do Not Meet the Risk Factor Profile for Osteoporotic Fracture 2% "Inverse Quality Measure"
This is an inverse quality measure, a lower rate means the provider is rated better.
104
Breast Cancer Screening 62% 275
Cervical Cancer Screening 24% 267
Colorectal Cancer Screening 24% 619
Controlling High Blood Pressure 70% 215
Diabetes: Eye Exam 4% 146
Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%) 66% "Inverse Quality Measure"
This is an inverse quality measure, a lower rate means the provider is rated better.
146
Documentation of Current Medications in the Medical Record 95% 1992
Falls: Screening for Future Fall Risk 20% 658
HIV Screening 24% 478
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan 34% 1087
Preventive Care and Screening: Screening for Depression and Follow-Up Plan 13% 938
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention 79% 509
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention 34% 50
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention 86% 509
Provide Patients Electronic Access to Their Health Information 100% 362
Statin Therapy for the Prevention and Treatment of Cardiovascular Disease 89% 560

Reviews for DR. GONZALO PLATON OBNIAL M.D.

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1497909931, we treat the final digit (1) 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 79. The final step is to find the difference between that total and the next multiple of ten (80 - 79 = 1).

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
4
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
7
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
0
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
9
Unchanged
Pos 9
3
Doubled → 6
Check
1
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 9 → 18 → 9 9 → 18 → 9 9 → 18 → 9 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 1 + 8 + 7 + 1 + 8 + 0 + 1 + 8 + 9 + 6 + 24 = 79

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

The next multiple of ten after 79 is 80. The difference is the calculated check digit.

80 - 79 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1497909931.

Other Providers at the Same Location


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

Internal Medicine (Critical Care Medicine)
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Nurse Practitioner (Acute Care)
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Internal Medicine (Gastroenterology)
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Anesthesiology
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Clinic/Center (Magnetic Resonance Imaging (MRI))
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Clinical Medical Laboratory
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Radiology (Diagnostic Radiology)
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Surgery (Vascular Surgery)
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Obstetrics & Gynecology (Gynecologic Oncology)
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Otolaryngology (Sleep Medicine)
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Surgery (Vascular Surgery)
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Licensed Practical Nurse
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Internal Medicine (Interventional Cardiology)
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Nurse Practitioner (Family)
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Physician Assistant
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Clinical Medical Laboratory
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Anesthesiology
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Obstetrics & Gynecology
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Physician Assistant (Medical)
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Thoracic Surgery (Cardiothoracic Vascular Surgery)
2637 SHADELANDS DR
WALNUT CREEK, CA 94598

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1497909931, enumerated as an "individual" on November 11, 2008.

The provider is located at 2637 SHADELANDS DR WALNUT CREEK, CA 94598 and the phone number is (925) 932-6330.

Surgery with taxonomy code 2086S0129X and a focus in Vascular Surgery.