NPPES file of Aug 9, 2026

George P. Gavallos, MD

Urology Physician · Hayward, CA

George P. Gavallos, MD is a urology physician with a practice address in Hayward, California, and NPI 1740368596, issued on Nov 1, 2006. Check the license (California A91903, 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
1740368596
Name
George P. Gavallos
Credential
MD
Primary taxonomy
Urology Physician 208800000X
License number
A91903 CA
Self-reported in NPPES; status is on the state search
Practice location
27400 Hesperian Blvd, Hayward, CA 94545
Phone
(510) 784-4000
Enumerated
Nov 1, 2006
Record last updated
Dec 27, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
00A919030 CA
Medicare enrollment
Enrolled (PECOS I20051228000578); accepts Medicare assignment
Medical or professional school
Creighton University School Of Medicine, 2000
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 27400 Hesperian Blvd

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

  1. Lyn Aborn, MDEmergency Medicine Physician1891873659
  2. Ahmed Alkoraishi, MDColon & Rectal Surgery Physician1609954478
  3. David Anderson, MDInternal Medicine Physician1659459410
  4. Eric Anderson, MDEmergency Medicine Physician1417035262
  5. Joel Angel, M.D.Hospitalist Physician1669644571
  6. Marc Anker, MDObstetrics & Gynecology Physician1376621128

Verify George P. Gavallos in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A91903
    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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31% more Medicare Part D claims than the average urology physician in 2024

1,754 Medicare Part D claims for 559 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. 28 claims were for opioids.

  1. George Gavallos1,754
  2. Specialty average1,340

Most prescribed

  1. Tamsulosin Hcl574 claims
  2. Finasteride420 claims
  3. Tadalafil141 claims
  4. Terazosin Hcl75 claims
  5. Cefadroxil68 claims
  6. Methenamine Hippurate53 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.

Industry payments in 2024: $1,164.00

9 payments; by number, the most common kind was food and beverage; the largest payer was Edap Technomed Inc. The 9,340 providers of this specialty with any payment received $3,800.04 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. George Gavallos$1,164.00
  2. Specialty average$3,800.04

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. Permanente Medical Group IncRedwood City, CA

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

Urology Physician providers in California

There are 1,524 urology physician records in California.

Other urology physician records in California

  1. David Aaronson, MDOakland, CA1215053129
  2. Jason Abber, MDPanorama City, CA1356366926
  3. Marc Abboud, MDLos Alamitos, CA1265096531
  4. George AbdelsayedAnaheim, CA1568721843
  5. Garen AbediDowney, CA1285909051
  6. Jennifer Abidari, MDStanford, CA1811098197
  7. Sherif Aboseif, MDOxnard, CA1093882995
  8. Parwiz Abrahimi, M.D., PH.D.Los Angeles, CA1154857613
  9. Anthony Acquaviva, MDVallejo, CA1457439283
  10. Theodore Affue, M.D.El Centro, CA1386674000

Common questions

What is George P. Gavallos, MD's NPI number?

George P. Gavallos, MD's National Provider Identifier (NPI) is 1740368596, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is George P. Gavallos, MD located?

The NPPES record lists a practice address at 27400 Hesperian Blvd, Hayward, CA, 94545. Phone: (510) 784-4000. Providers update this record themselves, so call before visiting.

How can I verify George P. Gavallos, MD's license?

NPPES lists California license number A91903, 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 George P. Gavallos, MD prescribe under Medicare Part D?

In 2024, George P. Gavallos, MD had 1,754 Medicare Part D claims for 559 beneficiaries; the average among urology physician prescribers was 1,340. 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.