NPPES file of Aug 9, 2026

Tiffany Kuo

Internal Medicine Physician · San Ramon, CA

Tiffany Kuo is an internal medicine physician with a practice address in San Ramon, California, and NPI 1932632338, issued on Apr 4, 2017. Check the license (California A169912, 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
1932632338
Name
Tiffany Kuo
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A169912 CA
Self-reported in NPPES; status is on the state search
Practice location
6001 Norris Canyon RD, San Ramon, CA 94583
Phone
(925) 275-9200
Enumerated
Apr 4, 2017
Record last updated
Dec 21, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20210111002887); accepts Medicare assignment
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.
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Also registered at 6001 Norris Canyon RD

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

  1. Maureen Alford, RNStudent in an Organized Health Care Education/Training Program1831522978
  2. Masoud Asgari, M.D.Dermatopathology (Pathology) Physician1467806356
  3. Miguel Ayala, NPFamily Nurse Practitioner1538446448
  4. Bailey BrewerHand Occupational Therapist1720294648
  5. Carl Critz, MDCytopathology Physician1740232107
  6. Gerardine Cruz, PA-CSurgical Physician Assistant1619104601

Verify Tiffany Kuo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A169912
    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.

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91% fewer Medicare Part D claims than the average internal medicine physician in 2024

274 Medicare Part D claims for 126 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 19 claims were for opioids.

  1. Tiffany Kuo274
  2. Specialty average3,176

Most prescribed

  1. Amoxicillin-Clavulanate Potass19 claims
  2. Furosemide17 claims
  3. Metoprolol Succinate13 claims
  4. Hydrocodone-Acetaminophen12 claims
  5. Pantoprazole Sodium12 claims
  6. 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): 47.6 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.

  1. Qualityout of 100 · 30% of the final score24.2
  2. Costout of 100 · 30%30.8
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $130.29

1 payment: food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Tiffany Kuo$130.29
  2. Specialty average$1,303.06

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

  1. Quantum Bay Area Hospitalist Medical Group IncMountain View, CA

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

Tiffany Kuo among 17,696 internal medicine physician records in California

Tiffany Kuo is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 81% of them.

  • NPI issued2017 · 81% of these records are older, 16% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2017 · median 2004 among the 11,065 with a school on file
  • Record last updated2020 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

22 internal medicine physician records list a practice address in San Ramon

They are 22 of the 2,281 NPPES records with a practice address in San Ramon, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Kushal Chhabra, MDSan Ramon, CA 945831255332953
  2. Laurie Draughon, M.D.San Ramon, CA 945831265490668
  3. Victorina Hoffmann, M.D.San Ramon, CA 945831336251693
  4. Frank Hsueh, M.D.San Ramon, CA 945831144224742
  5. Tehmina Kanwal, MDSan Ramon, CA 945831144332487
  6. Sue Knight, MDSan Ramon, CA 945831619968443
  7. Janice Lee, MDSan Ramon, CA 945831407835432
  8. Franklin Lemon, M.D.San Ramon, CA 945831457415143

Common questions

What is Tiffany Kuo's NPI number?

Tiffany Kuo's National Provider Identifier (NPI) is 1932632338, issued on Apr 4, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Tiffany Kuo located?

The NPPES record lists a practice address at 6001 Norris Canyon RD, San Ramon, CA, 94583. Phone: (925) 275-9200. Providers update this record themselves, so call before visiting.

How can I verify Tiffany Kuo's license?

NPPES lists California license number A169912, 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 Tiffany Kuo prescribe under Medicare Part D?

In 2024, Tiffany Kuo had 274 Medicare Part D claims for 126 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Tiffany Kuo's MIPS final score?

The 2023 MIPS final score is 47.6 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.