Dr. Nayna Devi Riyat, MD

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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.

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 Permanente Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 10941 clinicians in the practice; 12 are shown here.

• Dennis Terrance Balough, PA-C Physician Assistant · Carmichael, CA
• Dr. Jody Chouying Chuang, MD, PHD Internal Medicine Physician · Los Angeles, CA
• MS. Teresa Tjeda Corbett, DPT Physical Therapist · Manteca, CA
• Dr. Michele Akemi Fujimoto, MD Surgery Physician · Los Angeles, CA
• Dr. Amit Kumar Garg, MD Internal Medicine Physician · Danville, CA
• Dr. Jason Gilde, MD Student in an Organized Health Care Education/Training Program · Oakland, CA
• Christopher James Gouveia, MD Otolaryngology Physician · Stanford, CA
• Dr. Kai Jing, MD Internal Medicine Physician · Fremont, CA
• Dr. Shireen Mirza, MD Student in an Organized Health Care Education/Training Program · Rochester, MN
• Joseph Nolan, DO Student in an Organized Health Care Education/Training Program · Riverside, CA
• Dr. Vivian Cayme Torio, DO Family Medicine Physician · Selma, CA
• Shucheng Wong, MD Psychiatry Physician · Boston, MA

Other providers in Stanford

• Dr. June Wha Rhee, MD

  Individual Internal Medicine Physician · NPI 1568752400

  300 Pasteur Dr Grant S101, Stanford, CA 94305 · (650) 498-4560

• Fauzia Riaz, MD

  Individual Internal Medicine Physician · NPI 1871859546

  300 Pasteur Dr, Stanford, CA 94305-2200 · (650) 723-4000

• Dr. Susan Ripper, MD

  Individual Internal Medicine Physician · NPI 1649569658

  300 Pasteur Dr, Stanford, CA 94305-2200 · (650) 723-4000

• Luis Eduardo Rivera Delgado, MD

  Individual Internal Medicine Physician · NPI 1992400055

  300 Pasteur Dr, Stanford, CA 94305-2200 · (650) 723-4000

• Anstella Dolores Robinson, MD

  Individual Internal Medicine Physician · NPI 1023158730

  300 Pasteur Dr, Stanford, CA 94305-2200 · (650) 723-4000

• Makeda Lucretia Robinson, MD

  Individual Internal Medicine Physician · NPI 1093007395

  300 Pasteur Dr, Stanford, CA 94305-2200 · (650) 723-4000

• Stanley Glenn Rockson, MD

  Individual Internal Medicine Physician · NPI 1952443061

  300 Pasteur Dr, Stanford, CA 94305-2200 · (650) 723-4000

• Fatima Rodriguez, MD

  Individual Internal Medicine Physician · NPI 1184918393

  300 Pasteur Dr, Stanford, CA 94305-2200 · (650) 723-4000