Yousef Khelfa, M.D
NPI 1396954392 · Hematology & Oncology Physician · Sonora, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yousef Khelfa, M.D is a Hematology & Oncology Physician provider in Sonora, CA (NPI 1396954392).
Provider details
- NPI number
- 1396954392
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- Yes
- License
- C138847 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
6,327 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 2,563 | $142 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 2,019 | $16 |
| Prolonged Office Or Other Outpatient Evaluation and Management Service(s) Beyond the Maximum Required Time of the Primary Procedure Which Has Been Selected Using Total Time on the Date of the Primary Service; Each Additional 15 Minutes By the Physician OrG2212 | 619 | $31 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 308 | $96 |
| Advance Care Planning, First 30 Minutes99497 | 276 | $74 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 50 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 194 | 58 |
| Prednisone | 143 | 36 |
| Ondansetron Hcl | 135 | 78 |
| Abiraterone Acetate | 130 | 25 |
| Potassium Chloride | 117 | 58 |
| Dexamethasone | 105 | 35 |
| Oxycodone Hcl | 96 | 37 |
| Hydroxyurea | 72 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-22
- Last updated
- 2017-09-06
Frequently asked questions
- What is Yousef Khelfa's NPI number?
- Yousef Khelfa's National Provider Identifier (NPI) is 1396954392, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yousef Khelfa's specialty?
- Yousef Khelfa is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Yousef Khelfa located?
- Yousef Khelfa's practice location on file with NPPES is 1000 Greenley Rd, Sonora, CA 95370-5200.
- What is Yousef Khelfa's phone number?
- The practice phone number listed in the NPPES registry for Yousef Khelfa is (209) 536-3359.
- Does Yousef Khelfa accept Medicare?
- Yousef Khelfa is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yousef Khelfa's NPI active?
- Yes — Yousef Khelfa's NPI (1396954392) is active in the NPPES registry as of the last update on 2017-09-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.