NPPES file of Aug 9, 2026

Guadalupe Avila-Kirwan, MD

Internal Medicine Physician · Auburn, CA

Guadalupe Avila-Kirwan, MD is an internal medicine physician with a practice address in Auburn, California, and NPI 1306821566, issued on Dec 9, 2005. Check the license (California G84783, 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
1306821566
Name
Guadalupe Avila-Kirwan
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
G84783 CA
Self-reported in NPPES; status is on the state search
Practice location
3111 Professional Dr, Auburn, CA 95603
Phone
(530) 885-5610
Enumerated
Dec 9, 2005
Record last updated
Apr 29, 2011 (not updated in 15 years: call before relying on the address or phone)
Medicaid ID
00G847830 CA
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 3111 Professional Dr

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

  1. Taylor Anderson, PA-CPhysician Assistant1790450906
  2. Apeet Hundal, MDInternal Medicine Physician1134158926
  3. Lars Jakobsen, M.D.Internal Medicine Physician1417933110
  4. Gary Leeds, MDPulmonary Disease Physician1417930967
  5. Daniel Merck, MDInternal Medicine Physician1750300067
  6. Narges Shariati Varnosfaderani, M.D.Internal Medicine Physician1649256140

Verify Guadalupe Avila-Kirwan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G84783
    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

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84% fewer Medicare Part D claims than the average internal medicine physician in 2024

514 Medicare Part D claims for 282 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.

  1. Guadalupe Avila-Kirwan514
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium44 claims
  2. Levothyroxine Sodium36 claims
  3. Amlodipine Besylate33 claims
  4. Rosuvastatin Calcium25 claims
  5. Omeprazole20 claims
  6. Lisinopril18 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.

Guadalupe Avila-Kirwan among 17,696 internal medicine physician records in California

Guadalupe Avila-Kirwan, MD 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 95% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2011 · 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).

31 internal medicine physician records list a practice address in Auburn

They are 31 of the 1,392 NPPES records with a practice address in Auburn, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Kristin Ashley, M.D.Auburn, CA 956031437160298
  2. William Brady, MDAuburn, CA 956031790710002
  3. David Chihorek, MDAuburn, CA 956031578554226
  4. James Drennan, M.D.Auburn, CA 956031275518177
  5. Geralyn Flaig, M.D.Auburn, CA 956031992037253
  6. Mihaela Hasse, MDAuburn, CA 956031073624201
  7. Apeet Hundal, MDAuburn, CA 956031134158926
  8. Lars Jakobsen, M.D.Auburn, CA 956031417933110

Common questions

What is Guadalupe Avila-Kirwan, MD's NPI number?

Guadalupe Avila-Kirwan, MD's National Provider Identifier (NPI) is 1306821566, issued on Dec 9, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Guadalupe Avila-Kirwan, MD located?

The NPPES record lists a practice address at 3111 Professional Dr, Auburn, CA, 95603. Phone: (530) 885-5610. Providers update this record themselves, so call before visiting.

How can I verify Guadalupe Avila-Kirwan, MD's license?

NPPES lists California license number G84783, 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 Guadalupe Avila-Kirwan, MD prescribe under Medicare Part D?

In 2024, Guadalupe Avila-Kirwan, MD had 514 Medicare Part D claims for 282 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

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.