Nathan Alyesh
NPI 1417362856 · Internal Medicine Physician · Tarzana, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathan Alyesh is a Internal Medicine Physician provider in Tarzana, CA (NPI 1417362856).
Provider details
- NPI number
- 1417362856
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- A146154 (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
12 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
828 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 296 | $82 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 229 | $120 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 140 | $179 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 113 | $123 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 29 | $135 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 37 | 30 |
| Amlodipine Besylate | 33 | — |
| Prednisone | 33 | 19 |
| Metoprolol Succinate | 33 | 14 |
| Cefdinir | 30 | 27 |
| Furosemide | 21 | 21 |
| Levothyroxine Sodium | 20 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-06-24
- Last updated
- 2022-05-09
- Certified
- 2022-05-09
Frequently asked questions
- What is Nathan Alyesh's NPI number?
- Nathan Alyesh's National Provider Identifier (NPI) is 1417362856, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan Alyesh's specialty?
- Nathan Alyesh is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nathan Alyesh located?
- Nathan Alyesh's practice location on file with NPPES is 18321 Clark St, Tarzana, CA 91356-3501.
- What is Nathan Alyesh's phone number?
- The practice phone number listed in the NPPES registry for Nathan Alyesh is (818) 881-0800.
- Does Nathan Alyesh accept Medicare?
- Nathan Alyesh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathan Alyesh's NPI active?
- Yes — Nathan Alyesh's NPI (1417362856) is active in the NPPES registry as of the last update on 2022-05-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.