Aaron Zaks, DO
NPI 1447600317 · Family Medicine Physician · Benicia, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Aaron Zaks, DO is a Family Medicine Physician provider in Benicia, CA (NPI 1447600317).
Provider details
- NPI number
- 1447600317
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 20A15814 (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
10 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
552 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 | 334 | $148 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 97 | $207 |
| Osteopathic Manipulative Treatment, 3-4 Body Regions98926 | 60 | $52 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 38 | $151 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 12 | $17 |
| Urinalysis, Manual Test81002 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 68 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 185 | 70 |
| Lisinopril | 100 | 29 |
| Amlodipine Besylate | 97 | 31 |
| Rosuvastatin Calcium | 95 | 29 |
| Tamsulosin Hcl | 89 | 33 |
| Levothyroxine Sodium | 88 | 30 |
| Hydrocodone/Acetaminophen |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-06-21
- Last updated
- 2025-05-19
- Certified
- 2025-05-19
Frequently asked questions
- What is Aaron Zaks's NPI number?
- Aaron Zaks's National Provider Identifier (NPI) is 1447600317, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Aaron Zaks's specialty?
- Aaron Zaks is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Aaron Zaks located?
- Aaron Zaks's practice location on file with NPPES is 1440 Military W Ste 101, Benicia, CA 94510-2446.
- What is Aaron Zaks's phone number?
- The practice phone number listed in the NPPES registry for Aaron Zaks is (707) 745-0711.
- Does Aaron Zaks accept Medicare?
- Aaron Zaks is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Aaron Zaks's NPI active?
- Yes — Aaron Zaks's NPI (1447600317) is active in the NPPES registry as of the last update on 2025-05-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.