Stanley Arnold, MD
NPI 1669403275 · Internal Medicine Physician · Fountain Valley, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stanley Arnold, MD is a Internal Medicine Physician provider in Fountain Valley, CA (NPI 1669403275).
Provider details
- NPI number
- 1669403275
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G54624 (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
3 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 · 100 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 662 | 197 |
| Amlodipine Besylate | 287 | 88 |
| Levothyroxine Sodium | 181 | 54 |
| Tamsulosin Hcl | 172 | 51 |
| Lisinopril | 160 | 49 |
| Metoprolol Succinate | 157 | 53 |
| Metformin Hcl |
Practice location
Mailing address
Additional practice locations (2)
- 18682 Beach Blvd Ste 150Huntington Beach, CA 92648-2050Phone: (714) 965-2500Fax: (714) 965-2593
- 20981 Magnolia StHuntington Beach, CA 92646-6338Phone: (714) 965-2500Fax: (714) 965-2593
Registry dates
- Enumerated
- 2006-07-05
- Last updated
- 2026-02-21
- Certified
- 2026-02-21
Frequently asked questions
- What is Stanley Arnold's NPI number?
- Stanley Arnold's National Provider Identifier (NPI) is 1669403275, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stanley Arnold's specialty?
- Stanley Arnold is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stanley Arnold located?
- Stanley Arnold's practice location on file with NPPES is 9900 Talbert Ave, Fountain Valley, CA 92708-5153.
- What is Stanley Arnold's phone number?
- The practice phone number listed in the NPPES registry for Stanley Arnold is (714) 965-2500.
- Does Stanley Arnold accept Medicare?
- Stanley Arnold is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stanley Arnold's NPI active?
- Yes — Stanley Arnold's NPI (1669403275) is active in the NPPES registry as of the last update on 2026-02-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.