Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Dr. Sanjai Mathew Thankachen, MD

Individual provider Allergy Physician · NPI 1982751756

Dr. Sanjai Mathew Thankachen, MD practises Psychiatry in Irvine, California. Qualified in 2001, 25 years ago. Practices with Jason Kellogg MD Inc, an 18-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in California and Texas.

Years since qualifying
25
Licensed in
CA, TX
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

17782 Cowan Ste A
Irvine, CA 92614-6041
Phone: (949) 340-2111
Fax: (949) 722-7119
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1030 W 24th St Ste C-2, Yuma, AZ 85364-8319 — (928) 509-4766
  • 2316 Colonial Ct S, League City, TX 77573-5015 — (941) 883-1945

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence A 103818 (CA)
Allergy Physician Taxonomy 207KA0200X · Licence U0669 (TX)

Record details

NPI number1982751756
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 4, 2007
Last updated in NPPESOctober 15, 2025
Certification dateOctober 15, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPSYCHIATRY
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Group practice Jason Kellogg Md Inc — 18 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $19 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at Jason Kellogg MD Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 18 clinicians in the practice; 12 are shown here.

Other providers in Irvine