NPPES file of Aug 9, 2026

Gowriharan Thaiyananthan, MD

Neurological Surgery Physician · French Camp, CA

Gowriharan Thaiyananthan, MD is a neurological surgery physician with a practice address in French Camp, California, and NPI 1518164110, issued on Jun 28, 2007. Check the license (California A99924, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1518164110
Name
Gowriharan Thaiyananthan
Credential
MD
Primary taxonomy
Neurological Surgery Physician 207T00000X
License numbers
A99924 CA
DR.0059339 CO
01094949A IN
13893 NV
Self-reported in NPPES; status is on the state search
Practice location
500 W Hospital RD, French Camp, CA 95231
Phone
(209) 468-6937
Enumerated
Jun 28, 2007
Record last updated
Jun 27, 2025
Medicare enrollment
Enrolled (PECOS I20070919000627); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 500 W Hospital RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Abdul Abdali, M.D.Hospitalist Physician1104319771
  2. Massoud Abdali, M.D.Student in an Organized Health Care Education/Training Program1861707325
  3. Nader Abedini, MDStudent in an Organized Health Care Education/Training Program1861334484
  4. Marium Abid, MDStudent in an Organized Health Care Education/Training Program1831036375
  5. Jewel AbrahamAddiction (Substance Use Disorder) Counselor1205050689
  6. Marc Acosta, RNEmergency Registered Nurse1841188836

Verify Gowriharan Thaiyananthan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A99924
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

The practice group's MIPS final score for 2023 (Medicare payment program): 78.1 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score74.7
  2. Costout of 100 · 30%52.6
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities30 of 40 points · 15%75.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $743.85

5 payments; by number, the most common kind was food and beverage; the largest payer was Alphatec Spine, Inc. The 5,377 providers of this specialty with any payment received $14,925.58 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gowriharan Thaiyananthan$744
  2. Specialty average$14,926

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 3 group practices

  1. Southern California Permanente Medical GroupSan Diego, CA
  2. Sutter Valley Medical FoundationRoseville, CA
  3. Tyler G Smith MD A Professional CorporationRoseville, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gowriharan Thaiyananthan among 929 neurological surgery physician records in California

Gowriharan Thaiyananthan, MD is one of 929 neurological surgery physician records with a practice address in California. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 38% of them.

  • NPI issued2007 · 38% of these records are older, 48% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2001 · median 2005 among the 612 with a school on file
  • Record last updated2025 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurological Surgery Physician providers in California

There are 929 neurological surgery physician records in California.

The 8 neurological surgery physician records with the nearest ZIP codes

  1. Tina Hedayat, M.DFrench Camp, CA 952311477841492
  2. Darbi Invergo, D.O.French Camp, CA 952311124356381
  3. Azeem Oladunjoye, MDFrench Camp, CA 952311285892513
  4. Marietta Walsh, D.O.French Camp, CA 952311275809584
  5. Jason Lifshutz, MDSan Jose, CA 951281215011960
  6. Yigit Can Senol, MDSan Jose, CA 951281386502672
  7. Harminder SinghSan Jose, CA 951281235347865
  8. Fahd Khan, M.D.San Jose, CA 951241174731095

Common questions

What is Gowriharan Thaiyananthan, MD's NPI number?

Gowriharan Thaiyananthan, MD's National Provider Identifier (NPI) is 1518164110, issued on Jun 28, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Gowriharan Thaiyananthan, MD located?

The NPPES record lists a practice address at 500 W Hospital RD, French Camp, CA, 95231. Phone: (209) 468-6937. Providers update this record themselves, so call before visiting.

How can I verify Gowriharan Thaiyananthan, MD's license?

NPPES lists California license number A99924, 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.

What is Gowriharan Thaiyananthan, MD's MIPS final score?

The 2023 MIPS final score is 78.1 of 100, reported for the practice group. 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.