NPPES file of Aug 9, 2026

Michael F. Bishara, M.D.

Addiction Medicine (Internal Medicine) Physician · Riverside, CA

Michael F. Bishara, M.D. is an addiction medicine (internal medicine) physician with a practice address in Riverside, California, and NPI 1144311044, issued on Sep 27, 2006. Check the license (California A432060, 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
1144311044
Name
Michael F. Bishara
Credential
M.D.
Primary taxonomy
Addiction Medicine (Internal Medicine) Physician 207RA0401X
License number
A432060 CA
Self-reported in NPPES; status is on the state search
Practice location
6896 Magnolia Ave, Riverside, CA 92506
Phone
(951) 787-4885
Enumerated
Sep 27, 2006
Record last updated
Jul 12, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(951) 787-4962
Medicare enrollment
Enrolled (PECOS I20120405000556); 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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8 nearest addiction medicine (internal medicine) physician records → All 73 in California → Look up another NPI →

Also registered at 6896 Magnolia Ave

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

  1. Debra Rodgers, NPFamily Nurse Practitioner1144318957

Verify Michael F. Bishara in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A432060    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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3.1 times the Medicare Part D claims of the average addiction medicine (internal medicine) physician in 2024

2,586 Medicare Part D claims for 101 beneficiaries, against an average of 829 among the 401 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 60 claims were for opioids.

  1. Michael Bishara2,586
  2. Specialty average829

Most prescribed

  1. Buprenorphine-Naloxone293 claims
  2. Atorvastatin Calcium84 claims
  3. Buprenorphine Hcl71 claims
  4. Amlodipine Besylate67 claims
  5. Gabapentin62 claims
  6. Olmesartan Medoxomil59 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: $270.28

13 payments; by number, the most common kind was food and beverage; the largest payer was Braeburn Inc. The 188 providers of this specialty with any payment received $1,761.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Bishara$270.28
  2. Specialty average$1,761.64

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

Michael F. Bishara among 73 addiction medicine (internal medicine) physician records in California

Michael F. Bishara, M.D. is one of 73 addiction medicine (internal medicine) physician records with a practice address in California. 75% 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 1% of them.

  • NPI issued2006 · 1% of these records are older, 51% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 45% of these records are
  • Graduated1981 · median 2008 among the 33 with a school on file
  • Record last updated2012 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RA0401X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Addiction Medicine (Internal Medicine) Physician providers in California

There are 73 addiction medicine (internal medicine) physician records in California.

All 73 in California → Every provider in Riverside → Addiction Medicine (Internal Medicine) Physician nationwide →

The 8 addiction medicine (internal medicine) physician records with the nearest ZIP codes

  1. Hans Geisse, MDRiverside, CA 925051063589935
  2. David Ianacone, MDRiverside, CA 925051396816336
  3. Aung Thu, MDHemet, CA 925431760423560
  4. Dallas Dick, M.D.Moreno Valley, CA 925551285809772
  5. Raphi Hambartzhumian, MDMurrieta, CA 925621659991966
  6. Aury Holtzman, M.D.Huntington Beach, CA 926481548462567
  7. Mihran Ask, MDLoma Linda, CA 923571487766176
  8. Jan Brink, M.D.Hesperia, CA 923451326227992

Common questions

What is Michael F. Bishara, M.D.'s NPI number?

Michael F. Bishara, M.D.'s National Provider Identifier (NPI) is 1144311044, issued on Sep 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael F. Bishara, M.D. located?

The NPPES record lists a practice address at 6896 Magnolia Ave, Riverside, CA, 92506. Phone: (951) 787-4885. Providers update this record themselves, so call before visiting.

How can I verify Michael F. Bishara, M.D.'s license?

NPPES lists California license number A432060, 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 Michael F. Bishara, M.D. prescribe under Medicare Part D?

In 2024, Michael F. Bishara, M.D. had 2,586 Medicare Part D claims for 101 beneficiaries; the average among addiction medicine (internal medicine) physician prescribers was 829. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.