David Zimmerman, M.D.
NPI 1255357307 · Family Medicine Physician · Vista, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Zimmerman, M.D. is a Family Medicine Physician provider in Vista, CA (NPI 1255357307).
Provider details
- NPI number
- 1255357307
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A44517 (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
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
103 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 | 87 | $97 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 16 | $137 |
Typical Medicare-allowed amounts for these services range $97–$137 (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 · 52 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 166 | 68 |
| Levothyroxine Sodium | 136 | 59 |
| Losartan Potassium | 121 | 57 |
| Amlodipine Besylate | 88 | 44 |
| Lisinopril | 78 | 35 |
| Omeprazole | 70 | 30 |
| Azithromycin | 53 |
Practice location
Mailing address
Additional practice locations (1)
- 23521 Paseo De Valencia Ste 311Laguna Hills, CA 92653-3144Phone: (949) 305-2660Fax: (949) 305-2036
Registry dates
- Enumerated
- 2006-07-14
- Last updated
- 2025-11-30
- Certified
- 2025-11-30
Frequently asked questions
- What is David Zimmerman's NPI number?
- David Zimmerman's National Provider Identifier (NPI) is 1255357307, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Zimmerman's specialty?
- David Zimmerman is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is David Zimmerman located?
- David Zimmerman's practice location on file with NPPES is 145 Thunder Dr, Vista, CA 92083-6010.
- What is David Zimmerman's phone number?
- The practice phone number listed in the NPPES registry for David Zimmerman is (760) 941-9002.
- Does David Zimmerman accept Medicare?
- David Zimmerman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Zimmerman's NPI active?
- Yes — David Zimmerman's NPI (1255357307) is active in the NPPES registry as of the last update on 2025-11-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.