Wallace Baker, MD
NPI 1790834638 · Family Medicine Physician · Ventura, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wallace Baker, MD is a Family Medicine Physician provider in Ventura, CA (NPI 1790834638).
Provider details
- NPI number
- 1790834638
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A93801 (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
4 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
708 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 234 | $106 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 220 | $81 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 80 | $89 |
| Administration of Pneumococcal VaccineG0009 | 37 | $29 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 30 | $178 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 93 | 35 |
| Losartan Potassium | 83 | 32 |
| Lisinopril | 73 | 32 |
| Lisinopril/Hydrochlorothiazidebrand: Lisinopril-Hydrochlorothiazide | 64 | 17 |
| Atorvastatin Calcium | 63 | 24 |
| Amlodipine Besylate | 58 | 21 |
Practice location
Mailing address
Additional practice locations (3)
- 2500 S C St Ste B2Oxnard, CA 93033-4560Phone: (805) 981-5221
- 825 N 10th StSanta Paula, CA 93060-1309Phone: (805) 933-8632
- 300 Hillmont AveVentura, CA 93003-1651Phone: (805) 648-9830
Registry dates
- Enumerated
- 2007-01-09
- Last updated
- 2023-07-10
- Certified
- 2023-07-10
Frequently asked questions
- What is Wallace Baker's NPI number?
- Wallace Baker's National Provider Identifier (NPI) is 1790834638, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Wallace Baker's specialty?
- Wallace Baker is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Wallace Baker located?
- Wallace Baker's practice location on file with NPPES is 3291 Loma Vista Rd, Ventura, CA 93003-3099.
- What is Wallace Baker's phone number?
- The practice phone number listed in the NPPES registry for Wallace Baker is (805) 652-6100.
- Does Wallace Baker accept Medicare?
- Wallace Baker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Wallace Baker's NPI active?
- Yes — Wallace Baker's NPI (1790834638) 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.