Ryenn West, M.D.
NPI 1144583444 · Family Medicine Physician · Mission Hills, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryenn West, M.D. is a Family Medicine Physician provider in Mission Hills, CA (NPI 1144583444).
Provider details
- NPI number
- 1144583444
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 128534 (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
14 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
639 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) |
|---|---|---|
| Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus87426 | 86 | $35 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 82 | $136 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 58 | $8 |
| Automated Urinalysis Test81003 | 56 | $2 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 52 | $97 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 87 | 86 |
| Azithromycin | 82 | 82 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 74 | 73 |
| Doxycycline Hyclate | 67 | 66 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 66 | 66 |
| Naproxen | 64 | 64 |
| Fluticasone Propionate | 49 | 49 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-06-21
- Last updated
- 2021-12-30
- Certified
- 2021-12-30
Frequently asked questions
- What is Ryenn West's NPI number?
- Ryenn West's National Provider Identifier (NPI) is 1144583444, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryenn West's specialty?
- Ryenn West is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ryenn West located?
- Ryenn West's practice location on file with NPPES is 11333 Sepulveda Blvd, Mission Hills, CA 91345-1116.
- What is Ryenn West's phone number?
- The practice phone number listed in the NPPES registry for Ryenn West is (877) 634-3196.
- Does Ryenn West accept Medicare?
- Ryenn West is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryenn West's NPI active?
- Yes — Ryenn West's NPI (1144583444) is active in the NPPES registry as of the last update on 2021-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.