Michael Bishara, M.D.
NPI 1144311044 · Addiction Medicine (Internal Medicine) Physician · Riverside, CA
Enrolled with Medicare as Practitioner - Addiction Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Bishara, M.D. is a Addiction Medicine (Internal Medicine) Physician provider in Riverside, CA (NPI 1144311044).
Provider details
- NPI number
- 1144311044
- Entity type
- Individual
- Primary specialty
- Addiction Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A432060 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
336 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 323 | $94 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 13 | $64 |
Typical Medicare-allowed amounts for these services range $64–$94 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 63 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 293 | 37 |
| Atorvastatin Calcium | 84 | 25 |
| Buprenorphine Hcl | 71 | — |
| Amlodipine Besylate | 67 | 21 |
| Gabapentin | 62 | 15 |
| Olmesartan Medoxomil | 59 | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$270 across 13 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-27
- Last updated
- 2012-07-12
Frequently asked questions
- What is Michael Bishara's NPI number?
- Michael Bishara's National Provider Identifier (NPI) is 1144311044, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Bishara's specialty?
- Michael Bishara is listed in the NPPES registry with a primary specialty of Addiction Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Bishara located?
- Michael Bishara's practice location on file with NPPES is 6896 Magnolia Ave, Riverside, CA 92506-2843.
- What is Michael Bishara's phone number?
- The practice phone number listed in the NPPES registry for Michael Bishara is (951) 787-4885.
- Does Michael Bishara accept Medicare?
- Michael Bishara is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Bishara's NPI active?
- Yes — Michael Bishara's NPI (1144311044) is active in the NPPES registry as of the last update on 2012-07-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.