Preston Arndt, M.D.
NPI 1346303336 · Family Medicine Physician · Ojai, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Preston Arndt, M.D. is a Family Medicine Physician provider in Ojai, CA (NPI 1346303336).
Provider details
- NPI number
- 1346303336
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A78299 (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
19 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
255 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 79 | $192 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 50 | $137 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 40 | $17 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 27 | $233 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 20 | $97 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 63 | 18 |
| Atorvastatin Calcium | 46 | 13 |
| Gabapentin | 24 | — |
| Levothyroxine Sodium | 24 | — |
| Lisinopril | 23 | — |
| Rivaroxabanbrand: Xarelto | 23 | — |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-19
- Last updated
- 2023-07-10
- Certified
- 2023-07-10
Frequently asked questions
- What is Preston Arndt's NPI number?
- Preston Arndt's National Provider Identifier (NPI) is 1346303336, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Preston Arndt's specialty?
- Preston Arndt is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Preston Arndt located?
- Preston Arndt's practice location on file with NPPES is 411 W Ojai Ave Ste B, Ojai, CA 93023-2443.
- What is Preston Arndt's phone number?
- The practice phone number listed in the NPPES registry for Preston Arndt is (805) 233-4231.
- Does Preston Arndt accept Medicare?
- Preston Arndt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Preston Arndt's NPI active?
- Yes — Preston Arndt's NPI (1346303336) is active in the NPPES registry as of the last update on 2023-07-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.