Mutahir Farhan, MD
NPI 1033856661 · Addiction Medicine (Internal Medicine) Physician · Corona, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mutahir Farhan, MD is a Addiction Medicine (Internal Medicine) Physician provider in Corona, CA (NPI 1033856661).
Provider details
- NPI number
- 1033856661
- Entity type
- Individual
- Primary specialty
- Addiction Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A188941 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
4 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
497 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 | 124 | $20 |
| Prolonged Preventive Service(s) (beyond the Typical Service Time of the Primary Procedure), in the Office Or Other Outpatient Setting Requiring Direct Patient Contact Beyond the Usual Service; First 30 Minutes (list Separately in Addition to Code for PreveG0513 | 93 | $64 |
| Annual Wellness Visit; Includes a Personalized Prevention Plan of Service (pps), Initial VisitG0438 | 92 | $169 |
| Advance Care Planning, First 30 Minutes99497 | 89 | $83 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 44 | $20 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 68 | 42 |
| Buprenorphine Hcl | 17 | — |
| Ondansetronbrand: Ondansetron Odt | 16 | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (2)
- 900 University AveRiverside, CA 92521-9800Phone: (951) 827-1012
- 2101 N Waterman AveSan Bernardino, CA 92404-4836Phone: (909) 883-8711
Registry dates
- Enumerated
- 2022-05-16
- Last updated
- 2025-07-17
- Certified
- 2025-07-17
Frequently asked questions
- What is Mutahir Farhan's NPI number?
- Mutahir Farhan's National Provider Identifier (NPI) is 1033856661, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mutahir Farhan's specialty?
- Mutahir Farhan is listed in the NPPES registry with a primary specialty of Addiction Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Mutahir Farhan located?
- Mutahir Farhan's practice location on file with NPPES is 284 Dupont St Ste 130, Corona, CA 92879-6029.
- What is Mutahir Farhan's phone number?
- The practice phone number listed in the NPPES registry for Mutahir Farhan is (951) 497-3749.
- Does Mutahir Farhan accept Medicare?
- Mutahir Farhan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mutahir Farhan's NPI active?
- Yes — Mutahir Farhan's NPI (1033856661) is active in the NPPES registry as of the last update on 2025-07-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.