NPPES file of Aug 9, 2026

Tyler C. Ky, DO

Internal Medicine Physician · Palo Alto, CA

Tyler C. Ky, DO is an internal medicine physician with a practice address in Palo Alto, California, and NPI 1972253557, issued on Mar 25, 2022. Check the license (California 21912, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1972253557
Name
Tyler C. Ky
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
21912 CA
Self-reported in NPPES; status is on the state search
Practice location
453 Quarry RD, Palo Alto, CA 94304
Phone
(650) 721-5804
Enumerated
Mar 25, 2022
Record last updated
Jun 21, 2025
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 453 Quarry RD

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

  1. Amanda AntonoStudent in an Organized Health Care Education/Training Program1437846094
  2. Maria Isabel Barros Guinle, MD, MSStudent in an Organized Health Care Education/Training Program1255278941
  3. Maria Bederson, MDStudent in an Organized Health Care Education/Training Program1699563106
  4. Shaira BediPediatric Nephrology Physician1295468353
  5. Brandon Bergsneider, MDStudent in an Organized Health Care Education/Training Program1538097753
  6. Megan CornStudent in an Organized Health Care Education/Training Program1114772944

Verify Tyler C. Ky in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 21912
    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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Industry payments in 2024: $104.31

4 payments; by number, the most common kind was food and beverage; the largest payer was Zoll Services LLC (a/k/a Zoll LifeCor Corp). 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. Tyler Ky$104.31
  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.

Tyler C. Ky among 17,696 internal medicine physician records in California

Tyler C. Ky, DO 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 2022, is newer than 95% of them.

  • NPI issued2022 · 95% of these records are older, 2% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2025 · 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).

187 internal medicine physician records list a practice address in Palo Alto

They are 187 of the 7,617 NPPES records with a practice address in Palo Alto, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Arlina Ahluwalia, MDPalo Alto, CA 943041295723559
  2. Bankole Asebiomo, MDPalo Alto, CA 943041841301884
  3. Lisa Backus, MD PHDPalo Alto, CA 943041033152285
  4. Mina Charon, MDPalo Alto, CA 943041558349266
  5. Stephen Ezeji-Okoye, M.D.Palo Alto, CA 943041366493595
  6. Susan Frayne, MD, MPHPalo Alto, CA 943041952314890
  7. James Hallenbeck, MDPalo Alto, CA 943041316982358
  8. Rhonda Hamilton, M.D.Palo Alto, CA 943041225063241

Common questions

What is Tyler C. Ky, DO's NPI number?

Tyler C. Ky, DO's National Provider Identifier (NPI) is 1972253557, issued on Mar 25, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Tyler C. Ky, DO located?

The NPPES record lists a practice address at 453 Quarry RD, Palo Alto, CA, 94304. Phone: (650) 721-5804. Providers update this record themselves, so call before visiting.

How can I verify Tyler C. Ky, DO's license?

NPPES lists California license number 21912, 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.

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.