Arian Deonarain, MD
NPI 1891379855 · Internal Medicine Physician · Scottsdale, AZ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Arian Deonarain, MD is a Internal Medicine Physician provider in Scottsdale, AZ (NPI 1891379855).
Provider details
- NPI number
- 1891379855
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 73978 (AZ)
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 tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Metformin Hcl | 13 |
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 (1)
- 2000 E River Rd Apt C2Tucson, AZ 85718-6534Phone: (520) 390-7758Fax: (432) 200-0199
Registry dates
- Enumerated
- 2021-05-06
- Last updated
- 2025-01-15
- Certified
- 2025-01-15
Frequently asked questions
- What is Arian Deonarain's NPI number?
- Arian Deonarain's National Provider Identifier (NPI) is 1891379855, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arian Deonarain's specialty?
- Arian Deonarain is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Arian Deonarain located?
- Arian Deonarain's practice location on file with NPPES is 21803 N Scottsdale Rd Ste 125, Scottsdale, AZ 85255-7445.
- What is Arian Deonarain's phone number?
- The practice phone number listed in the NPPES registry for Arian Deonarain is (602) 837-7491.
- Does Arian Deonarain accept Medicare?
- Arian Deonarain is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Arian Deonarain's NPI active?
- Yes — Arian Deonarain's NPI (1891379855) is active in the NPPES registry as of the last update on 2025-01-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.