Arash Nafisi, M.D.
NPI 1831478122 · Internal Medicine Physician · Valencia, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Arash Nafisi, M.D. is a Internal Medicine Physician provider in Valencia, CA (NPI 1831478122).
Provider details
- NPI number
- 1831478122
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A126134 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 184 | 69 |
| Amlodipine Besylate | 115 | 43 |
| Metformin Hcl | 94 | 34 |
| Semaglutidebrand: Ozempic | 88 | 16 |
| Omeprazole | 74 | 28 |
| Alendronate Sodium | 53 | 20 |
| Benazepril Hcl | 53 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-08-04
- Last updated
- 2022-02-23
- Certified
- 2022-02-23
Frequently asked questions
- What is Arash Nafisi's NPI number?
- Arash Nafisi's National Provider Identifier (NPI) is 1831478122, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arash Nafisi's specialty?
- Arash Nafisi is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Arash Nafisi located?
- Arash Nafisi's practice location on file with NPPES is 27235 Tourney Rd Ste 2500, Valencia, CA 91355-5908.
- What is Arash Nafisi's phone number?
- The practice phone number listed in the NPPES registry for Arash Nafisi is (661) 253-5851.
- Does Arash Nafisi accept Medicare?
- Arash Nafisi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Arash Nafisi's NPI active?
- Yes — Arash Nafisi's NPI (1831478122) is active in the NPPES registry as of the last update on 2022-02-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.