NPPES file of Aug 9, 2026

Brian A. Honbo, M.D.

Family Medicine Physician · Concord, CA

Brian A. Honbo, M.D. is a family medicine physician with a practice address in Concord, California, and NPI 1578587721, issued on Jul 27, 2006. Check the license (California A91656, 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
1578587721
Name
Brian A. Honbo
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A91656 CA
Self-reported in NPPES; status is on the state search
Practice location
2700 Grant St, Concord, CA 94520
Phone
(925) 677-0500
Enumerated
Jul 27, 2006
Record last updated
Jun 21, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(925) 677-0519
Medicaid ID
00A916560 CA
Medicare enrollment
Enrolled (PECOS I20061216000082); 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 2700 Grant St

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

  1. Jason AdajarPhysical Therapist1689187825
  2. Johnson Adeyanju, M.D.Internal Medicine Physician1467403147
  3. Susan Adler-Bressler, M.D.Family Medicine Physician1588615207
  4. Kris Arneson, P.T.Physical Therapist1669596425
  5. Alicia Bakkum, NPClinical Nurse Specialist1982793220
  6. Mike Bannout, M.D.Internal Medicine Physician1598784662

Verify Brian A. Honbo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A91656
    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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61% more Medicare Part D claims than the average family medicine physician in 2024

5,692 Medicare Part D claims for 548 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 395 claims were for opioids.

  1. Brian Honbo5,692
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium469 claims
  2. Levothyroxine Sodium279 claims
  3. Hydrocodone-Acetaminophen236 claims
  4. Amlodipine Besylate190 claims
  5. Lisinopril180 claims
  6. Losartan Potassium153 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. John Muir Physician NetworkConcord, CA

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

Brian A. Honbo among 17,133 family medicine physician records in California

Brian A. Honbo, 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
  • Graduated2003 · median 2005 among the 10,652 with a school on file
  • Record last updated2012 · 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).

38 family medicine physician records list a practice address in Concord

They are 38 of the 9,328 NPPES records with a practice address in Concord, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Susan Adler-Bressler, M.D.Concord, CA 945201588615207
  2. Olawunmi Beckley, M.D.Concord, CA 945201497789499
  3. Teresa Brock, M.D.Concord, CA 945201619920444
  4. Wilbert Charles, MDConcord, CA 945201861487589
  5. Susanne Duesberg, M.D.Concord, CA 945201770509838
  6. Detlef Ehling, M.D.Concord, CA 945201154331155
  7. Thomas Greely, M.D.Concord, CA 945201851336820
  8. Michael Lewis, MDConcord, CA 945201700826740

Common questions

What is Brian A. Honbo, M.D.'s NPI number?

Brian A. Honbo, M.D.'s National Provider Identifier (NPI) is 1578587721, issued on Jul 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Brian A. Honbo, M.D. located?

The NPPES record lists a practice address at 2700 Grant St, Concord, CA, 94520. Phone: (925) 677-0500. Providers update this record themselves, so call before visiting.

How can I verify Brian A. Honbo, M.D.'s license?

NPPES lists California license number A91656, 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 Brian A. Honbo, M.D. prescribe under Medicare Part D?

In 2024, Brian A. Honbo, M.D. had 5,692 Medicare Part D claims for 548 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.