Daniel Rios, MD
NPI 1821176652 · Internal Medicine Physician · Napa, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Rios, MD is a Internal Medicine Physician provider in Napa, CA (NPI 1821176652).
Provider details
- NPI number
- 1821176652
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A67837 (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
19 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 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 195 | 104 |
| Lisinopril | 98 | 55 |
| Levothyroxine Sodium | 91 | 46 |
| Amlodipine Besylate | 91 | 53 |
| Losartan Potassium | 85 | 44 |
| Atenolol | 56 | 33 |
| Tamsulosin Hcl | 52 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2024-10-21
- Certified
- 2024-10-21
Frequently asked questions
- What is Daniel Rios's NPI number?
- Daniel Rios's National Provider Identifier (NPI) is 1821176652, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Rios's specialty?
- Daniel Rios is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Daniel Rios located?
- Daniel Rios's practice location on file with NPPES is 1141 Pear Tree Ln Ste 100, Napa, CA 94558-6485.
- What is Daniel Rios's phone number?
- The practice phone number listed in the NPPES registry for Daniel Rios is (707) 254-1770.
- Does Daniel Rios accept Medicare?
- Daniel Rios is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Rios's NPI active?
- Yes — Daniel Rios's NPI (1821176652) is active in the NPPES registry as of the last update on 2024-10-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.