Walter Zaks, M. D.
NPI 1316906704 · Family Medicine Physician · Benicia, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Walter Zaks, M. D. is a Family Medicine Physician provider in Benicia, CA (NPI 1316906704).
Provider details
- NPI number
- 1316906704
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M. D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G34777 (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
20 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
1,228 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 | 398 | $145 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 304 | $203 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 123 | $147 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 122 | $23 |
| Annual, Face-To-Face Intensive Behavioral Therapy for Cardiovascular Disease, Individual, 15 MinutesG0446 | 57 | $28 |
| Administration of Influenza Virus VaccineG0008 | 54 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 60 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 379 | 113 |
| Amlodipine Besylate | 143 | 42 |
| Tamsulosin Hcl | 134 | 43 |
| Escitalopram Oxalate | 110 | 25 |
| Lisinopril/Hydrochlorothiazidebrand: Lisinopril-Hydrochlorothiazide | 99 | 27 |
| Levothyroxine Sodium | 92 | 24 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-22
- Last updated
- 2025-05-19
- Certified
- 2025-05-19
Frequently asked questions
- What is Walter Zaks's NPI number?
- Walter Zaks's National Provider Identifier (NPI) is 1316906704, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Walter Zaks's specialty?
- Walter Zaks is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Walter Zaks located?
- Walter Zaks's practice location on file with NPPES is 1440 Military W, Benicia, CA 94510-2451.
- What is Walter Zaks's phone number?
- The practice phone number listed in the NPPES registry for Walter Zaks is (707) 745-0711.
- Does Walter Zaks accept Medicare?
- Walter Zaks is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Walter Zaks's NPI active?
- Yes — Walter Zaks's NPI (1316906704) 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.