Dennis Lewis, MD
NPI 1780608190 · Family Medicine Physician · Valencia, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dennis Lewis, MD is a Family Medicine Physician provider in Valencia, CA (NPI 1780608190).
Provider details
- NPI number
- 1780608190
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- G78417 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,796 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 867 | $143 |
| Urinalysis, Manual Test81002 | 459 | $3 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 421 | $16 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 412 | $102 |
| X-Ray of Chest, 2 Views71046 | 391 | $40 |
| 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'S |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 119 | 53 |
| Amlodipine Besylate | 99 | 39 |
| Prednisone | 92 | 60 |
| Losartan Potassium | 72 | 33 |
| Levothyroxine Sodium | 70 | 27 |
| Rosuvastatin Calcium | 69 | 29 |
| Omeprazole |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$844 across 36 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-27
- Last updated
- 2015-08-07
Frequently asked questions
- What is Dennis Lewis's NPI number?
- Dennis Lewis's National Provider Identifier (NPI) is 1780608190, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dennis Lewis's specialty?
- Dennis Lewis is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Dennis Lewis located?
- Dennis Lewis's practice location on file with NPPES is 23823 Valencia Blvd, Valencia, CA 91355-9312.
- What is Dennis Lewis's phone number?
- The practice phone number listed in the NPPES registry for Dennis Lewis is (661) 254-0026.
- Does Dennis Lewis accept Medicare?
- Dennis Lewis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dennis Lewis's NPI active?
- Yes — Dennis Lewis's NPI (1780608190) is active in the NPPES registry as of the last update on 2015-08-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.