NPPES file of Aug 9, 2026

Gonzalo Rafael Ballon-Landa, M.D.

Infectious Disease Physician · San Diego, CA

Gonzalo Rafael Ballon-Landa, M.D. is an infectious disease physician with a practice address in San Diego, California, and NPI 1326266081, issued on Apr 20, 2007. Check the license (California G41894, 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
1326266081
Name
Gonzalo Rafael Ballon-Landa
Credential
M.D.
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
G41894 CA
Self-reported in NPPES; status is on the state search
Practice location
4136 Bachman PL, San Diego, CA 92103
Phone
(619) 238-1443
Enumerated
Apr 20, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(619) 298-6188
Medicaid ID
00G418940 CA
Medicare enrollment
Enrolled (PECOS I20110309000678); accepts Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 1977
Telehealth
Offers telehealth (CMS)
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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Verify Gonzalo Rafael Ballon-Landa in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G41894
    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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34% fewer Medicare Part D claims than the average infectious disease physician in 2024

453 Medicare Part D claims for 64 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.

  1. Gonzalo Ballon-Landa453
  2. Specialty average689

Most prescribed

  1. Biktarvy69 claims
  2. Cephalexin52 claims
  3. Amoxicillin42 claims
  4. Genvoya27 claims
  5. Doxycycline Hyclate26 claims
  6. Descovy25 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: $263.58

30 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gonzalo Ballon-Landa$263.58
  2. Specialty average$4,362.19

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Infectious Diseases Physicians OF San Diego IncSan Diego, CA
  2. ON Call Specialists Medical Group OF San Diego IncSan Diego, CA

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

Gonzalo Rafael Ballon-Landa among 1,119 infectious disease physician records in California

Gonzalo Rafael Ballon-Landa, M.D. is one of 1,119 infectious disease 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 2007, is newer than 46% of them.

  • NPI issued2007 · 46% of these records are older, 41% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1977 · median 2003 among the 735 with a school on file
  • Record last updated2007 · 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 207RI0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in California

There are 1,119 infectious disease physician records in California.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Saima Aslam, M.D.San Diego, CA 921031477565257
  2. Constance Benson, M.D.San Diego, CA 921031871541664
  3. Ajay Bharti, MDSan Diego, CA 921031902954910
  4. Sara Browne, M.DSan Diego, CA 921031275571176
  5. Joshua Fierer, M.D.San Diego, CA 921031871525584
  6. Theodoros Katsivas, MDSan Diego, CA 921031679526164
  7. William Mathews, M.D.San Diego, CA 921031194773259
  8. Kalpana Natrajan, M.D.San Diego, CA 921031770686834

Common questions

What is Gonzalo Rafael Ballon-Landa, M.D.'s NPI number?

Gonzalo Rafael Ballon-Landa, M.D.'s National Provider Identifier (NPI) is 1326266081, issued on Apr 20, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Gonzalo Rafael Ballon-Landa, M.D. located?

The NPPES record lists a practice address at 4136 Bachman PL, San Diego, CA, 92103. Phone: (619) 238-1443. Providers update this record themselves, so call before visiting.

How can I verify Gonzalo Rafael Ballon-Landa, M.D.'s license?

NPPES lists California license number G41894, 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 Gonzalo Rafael Ballon-Landa, M.D. prescribe under Medicare Part D?

In 2024, Gonzalo Rafael Ballon-Landa, M.D. had 453 Medicare Part D claims for 64 beneficiaries; the average among infectious disease physician prescribers was 689. 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.