Arpna Patel, MD
NPI 1427314178 · Internal Medicine Physician · Thousand Oaks, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Arpna Patel, MD is a Internal Medicine Physician provider in Thousand Oaks, CA (NPI 1427314178).
Provider details
- NPI number
- 1427314178
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A128199 (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
14 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
79 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 41 | $69 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 23 | $101 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 15 | $68 |
Typical Medicare-allowed amounts for these services range $68–$101 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 85 | 28 |
| Atorvastatin Calcium | 64 | 20 |
| Levothyroxine Sodium | 61 | 18 |
| Gabapentin | 41 | 13 |
| Losartan Potassium | 39 | 15 |
| Rosuvastatin Calcium | 37 | — |
| Famotidine | 34 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-04-06
- Last updated
- 2025-02-03
- Certified
- 2025-02-03
Frequently asked questions
- What is Arpna Patel's NPI number?
- Arpna Patel's National Provider Identifier (NPI) is 1427314178, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arpna Patel's specialty?
- Arpna Patel is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Arpna Patel located?
- Arpna Patel's practice location on file with NPPES is 100 Moody Ct Ste 200, Thousand Oaks, CA 91360-6082.
- What is Arpna Patel's phone number?
- The practice phone number listed in the NPPES registry for Arpna Patel is (805) 418-3500.
- Does Arpna Patel accept Medicare?
- Arpna Patel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Arpna Patel's NPI active?
- Yes — Arpna Patel's NPI (1427314178) is active in the NPPES registry as of the last update on 2025-02-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.