NPPES file of Aug 9, 2026

Federico George Leon, M.D.

Family Medicine Physician · Napa, CA

Federico George Leon, M.D. is a family medicine physician with a practice address in Napa, California, and NPI 1659349173, issued on Mar 10, 2006. Check the license (California C138145, 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
1659349173
Name
Federico George Leon
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
C138145 CA
D0035345 MD
Self-reported in NPPES; status is on the state search
Practice location
1141 Pear Tree LN Ste 100, Napa, CA 94558
Phone
(240) 421-0386
Enumerated
Mar 10, 2006
Record last updated
May 2, 2024
Medicare enrollment
Enrolled (PECOS I20250604001103); accepts Medicare assignment
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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Also registered at 1141 Pear Tree LN Ste 100

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

  1. Maria AcevesRegistered Nurse1871042572
  2. Kendra Brouse, RNRegistered Nurse1437895158
  3. Michele CarlsonRegistered Nurse1043967680
  4. Jose Carrasco Sandoval, DDSDentist1770146714
  5. Christine Conigliaro, LCSWClinical Social Worker1952501124
  6. Luis Cousin, M.D.Family Medicine Physician1477664936

Verify Federico George Leon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C138145
    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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85% fewer Medicare Part D claims than the average family medicine physician in 2024

534 Medicare Part D claims for 127 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Federico Leon534
  2. Specialty average3,544

Most prescribed

  1. Metformin Hcl29 claims
  2. Glimepiride27 claims
  3. Gabapentin22 claims
  4. Lisinopril20 claims
  5. Atorvastatin Calcium16 claims
  6. Fluoxetine Hcl14 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.

Bills Medicare through one group practice

  1. Dean Health Systems IncJanesville, WI

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

Federico George Leon among 17,133 family medicine physician records in California

Federico George Leon, M.D. is one of 17,133 family 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. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1982 · median 2005 among the 10,652 with a school on file
  • Record last updated2024 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

59 family medicine physician records list a practice address in Napa

They are 59 of the 3,583 NPPES records with a practice address in Napa, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Aurelio Campos, MDNapa, CA 945581265446280
  2. Andrea Clarke, MDNapa, CA 945581598734709
  3. Alexandre De Moraes, M.D.Napa, CA 945581942284831
  4. Benjamin Jewell, MDNapa, CA 945581134134091
  5. Maria Montenegro, M.D.Napa, CA 945581992719199
  6. Robert Moore, MDNapa, CA 945581538194899
  7. Michael Novak, MDNapa, CA 945581972501179
  8. David Pratt, M.D.Napa, CA 945581114907516

Common questions

What is Federico George Leon, M.D.'s NPI number?

Federico George Leon, M.D.'s National Provider Identifier (NPI) is 1659349173, issued on Mar 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Federico George Leon, M.D. located?

The NPPES record lists a practice address at 1141 Pear Tree LN Ste 100, Napa, CA, 94558. Phone: (240) 421-0386. Providers update this record themselves, so call before visiting.

How can I verify Federico George Leon, M.D.'s license?

NPPES lists California license number C138145, 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 Federico George Leon, M.D. prescribe under Medicare Part D?

In 2024, Federico George Leon, M.D. had 534 Medicare Part D claims for 127 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.