NPPES file of Aug 9, 2026

Alyssa Ryan Dwight

Emergency Medicine Physician · Palo Alto, CA

Alyssa Ryan Dwight is an emergency medicine physician with a practice address in Palo Alto, California, and NPI 1497540132, issued on Apr 14, 2025. Check the license (California 18390, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1497540132
Name
Alyssa Ryan Dwight
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
18390 CA
Self-reported in NPPES; status is on the state search
Practice location
1199 Welch RD, Palo Alto, CA 94304
Phone
(650) 723-5111
Enumerated
Apr 14, 2025
Record last updated
Sep 27, 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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8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →

Also registered at 1199 Welch RD

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

  1. Brock BurnettStudent in an Organized Health Care Education/Training Program1225891237
  2. Melissa CintronEmergency Registered Nurse1609756295
  3. Bryan Cortez, MDEmergency Medicine Physician1487398319
  4. Summer Ghaith, MD, JDEmergency Medicine Physician1265229678
  5. Stephen HoeflerRegistered Nurse1245128495
  6. Benjamin Johnson, MD, MSCStudent in an Organized Health Care Education/Training Program1831789841

Verify Alyssa Ryan Dwight in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 18390    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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Alyssa Ryan Dwight among 7,751 emergency medicine physician records in California

Alyssa Ryan Dwight is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2025, is newer than over 99% of them.

  • NPI issued2025 · over 99% of these records are older, under 1% newer
  • In a Medicare fileNo · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 59% of these records are
  • Record last updated2025 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in California

There are 7,751 emergency medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 7,751 in California → Every provider in Palo Alto → Emergency Medicine Physician nationwide →

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Terence Ahern, MDPalo Alto, CA 943041104195916
  2. Christopher Evans, D.O.Palo Alto, CA 943041902227788
  3. Tonia Fox, MDPalo Alto, CA 943041023050242
  4. William Johnston, M.D.Palo Alto, CA 943041417366584
  5. Derrick Lung, MDPalo Alto, CA 943041821259342
  6. Anne Merritt, M.D.Palo Alto, CA 943041730322967
  7. Robert Norris, M.D.Palo Alto, CA 943041124177928
  8. Sabrina Pak, MDPalo Alto, CA 943041548332018

Common questions

What is Alyssa Ryan Dwight's NPI number?

Alyssa Ryan Dwight's National Provider Identifier (NPI) is 1497540132, issued on Apr 14, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Alyssa Ryan Dwight located?

The NPPES record lists a practice address at 1199 Welch RD, Palo Alto, CA, 94304. Phone: (650) 723-5111. Providers update this record themselves, so call before visiting.

How can I verify Alyssa Ryan Dwight's license?

NPPES lists California license number 18390, 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.