NPPES file of Aug 9, 2026

Libre Johnson, M.D.

Family Medicine Physician · Walnut Creek, CA

Libre Johnson, M.D. is a family medicine physician with a practice address in Walnut Creek, California, and NPI 1770683658, issued on Sep 22, 2006. Check the license (California A76860, 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
1770683658
Name
Libre Johnson
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A76860 CA
Self-reported in NPPES; status is on the state search
Practice location
1450 Treat Blvd Ste 250A, Walnut Creek, CA 94597
Phone
(925) 296-9706
Enumerated
Sep 22, 2006
Record last updated
Apr 30, 2026
Fax
(925) 296-9062
Medicaid ID
3114543 OH
Medicare enrollment
Enrolled (PECOS I20161223000375); accepts Medicare assignment
Medical or professional school
University Of Pittsburgh 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 1450 Treat Blvd Ste 250A

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

  1. Andrea Darnell, DOFamily Medicine Physician1760829618
  2. Maki Matsumura, NP-CNurse Practitioner1013316488

Verify Libre Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A76860
    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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51% more Medicare Part D claims than the average family medicine physician in 2024

5,364 Medicare Part D claims for 1,088 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 244 claims were for opioids.

  1. Libre Johnson5,364
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium387 claims
  2. Levothyroxine Sodium281 claims
  3. Lisinopril221 claims
  4. Amlodipine Besylate211 claims
  5. Hydrocodone-Acetaminophen179 claims
  6. Losartan Potassium143 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 2 group practices

  1. John Muir Physician NetworkWalnut Creek, CA
  2. Permanente Medical Group IncSanta Rosa, CA

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

Libre Johnson among 17,133 family medicine physician records in California

Libre Johnson, 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
  • Graduated2000 · median 2005 among the 10,652 with a school on file
  • Record last updated2026 · 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).

116 family medicine physician records list a practice address in Walnut Creek

They are 116 of the 6,170 NPPES records with a practice address in Walnut Creek, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Russell Alpert, M.D.Walnut Creek, CA 945971235182544
  2. John Cho, M.D.Walnut Creek, CA 945971609816107
  3. Grace Chou, M.D.Walnut Creek, CA 945971053309369
  4. Robert Eidus, MDWalnut Creek, CA 945971215901871
  5. Lance Gee, M.D.Walnut Creek, CA 945971497731665
  6. Deborah Greer, M.D.Walnut Creek, CA 945971003851858
  7. Lawren Hicks, M.D.Walnut Creek, CA 945971619912680
  8. Seigfred Jalalon, M.D.Walnut Creek, CA 945971043231038

Common questions

What is Libre Johnson, M.D.'s NPI number?

Libre Johnson, M.D.'s National Provider Identifier (NPI) is 1770683658, issued on Sep 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Libre Johnson, M.D. located?

The NPPES record lists a practice address at 1450 Treat Blvd Ste 250A, Walnut Creek, CA, 94597. Phone: (925) 296-9706. Providers update this record themselves, so call before visiting.

How can I verify Libre Johnson, M.D.'s license?

NPPES lists California license number A76860, 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 Libre Johnson, M.D. prescribe under Medicare Part D?

In 2024, Libre Johnson, M.D. had 5,364 Medicare Part D claims for 1,088 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.