Gonzalo Platon Obnial, M.D.
Vascular Surgery Physician · Walnut Creek, CA
Gonzalo Platon Obnial, M.D. is a vascular surgery physician with a practice address in Walnut Creek, California, and NPI 1497909931, issued on Nov 11, 2008. Check the license (California A112342, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gonzalo Platon Obnial
- Credential
- M.D.
- Primary taxonomy
- Vascular Surgery Physician 2086S0129X
- License numbers
- A112342 CA
4301091346 MI
Self-reported in NPPES; status is on the state search - Practice location
- 2637 Shadelands Dr, Walnut Creek, CA 94598
- Phone
- (925) 932-6330
- Enumerated
- Nov 11, 2008
- Record last updated
- Feb 28, 2025
- Fax
- (925) 932-0139
- Medicare enrollment
- Enrolled (PECOS I20101111001039); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest vascular surgery physician records → All 580 in California → Look up another NPI →
Also registered at 2637 Shadelands Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anita Anand, NPFamily Nurse Practitioner1023993102
- Stacyann Andaya, NPFamily Nurse Practitioner1649893660
- Audrey Arzamendi, M.D.Endocrinology, Diabetes & Metabolism Physician1508159567
- Anthony Bernens, MDInternal Medicine Physician1215983440
- Jennifer Chan, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1265634687
- Heidi Chang, MDObstetrics & Gynecology Physician1649681982
Verify Gonzalo Platon Obnial in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A112342Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% more Medicare Part D claims than the average vascular surgery physician in 2024
360 Medicare Part D claims for 129 beneficiaries, against an average of 201 among the 3,936 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 33 claims were for opioids.
Most prescribed
- Clopidogrel232 claims
- Hydrocodone-Acetaminophen32 claims
- Xarelto31 claims
- Pantoprazole Sodium18 claims
- Eliquis11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 96 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $3,159.59
41 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 4,059 providers of this specialty with any payment received $6,178.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Bass Medical GroupAlamo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gonzalo Platon Obnial among 580 vascular surgery physician records in California
Gonzalo Platon Obnial, M.D. is one of 580 vascular surgery physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 60% of them.
- NPI issued2008 · 60% of these records are older, 34% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2000 · median 2003 among the 411 with a school on file
- Record last updated2025 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0129X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Vascular Surgery Physician providers in California
There are 580 vascular surgery physician records in California.
All 580 in California → Every provider in Walnut Creek → Vascular Surgery Physician nationwide →
The 8 vascular surgery physician records with the nearest ZIP codes
- Rishyur Jothi, M.D.Walnut Creek, CA 945981639268758
- Brian Keyashian, M.D.Walnut Creek, CA 945981962776245
- Rajiv Nagesetty, MDWalnut Creek, CA 945981689786840
- Jon Christopher Orlino, M.D.Walnut Creek, CA 945981265963789
- Fernando Otero, MDWalnut Creek, CA 945981346244183
- Keshav Pandurangi, MDWalnut Creek, CA 945981609987924
- Charles Bouch, MDWalnut Creek, CA 945961144308222
- Sung Cho, MDWalnut Creek, CA 945961710065826
Common questions
What is Gonzalo Platon Obnial, M.D.'s NPI number?
Gonzalo Platon Obnial, M.D.'s National Provider Identifier (NPI) is 1497909931, issued on Nov 11, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Gonzalo Platon Obnial, M.D. located?
The NPPES record lists a practice address at 2637 Shadelands Dr, Walnut Creek, CA, 94598. Phone: (925) 932-6330. Providers update this record themselves, so call before visiting.
How can I verify Gonzalo Platon Obnial, M.D.'s license?
NPPES lists California license number A112342, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gonzalo Platon Obnial, M.D. prescribe under Medicare Part D?
In 2024, Gonzalo Platon Obnial, M.D. had 360 Medicare Part D claims for 129 beneficiaries; the average among vascular surgery physician prescribers was 201. Part D covers Medicare prescriptions only.
What is Gonzalo Platon Obnial, M.D.'s MIPS final score?
The 2023 MIPS final score is 96 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.