Claudio Zawitkowski, M.D.,
NPI 1578558623 · Internal Medicine Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Claudio Zawitkowski, M.D., is a Internal Medicine Physician provider in San Diego, CA (NPI 1578558623).
Provider details
- NPI number
- 1578558623
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.,
- Sex
- Male
- Sole proprietor
- Yes
- License
- A49794 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
1,593 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 708 | $104 |
| Physician Supervision of a Patient Under a Medicare-Approved Hospice (patient Not Present) Requiring Complex and Multidisciplinary Care Modalities Involving Regular Physician Development And/Or Revision of Care Plans, Review of Subsequent Reports of PatienG0182 | 285 | $103 |
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 240 | $148 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 113 | $72 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 111 | $122 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 129 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 253 | 21 |
| Apixabanbrand: Eliquis | 241 | 20 |
| Atorvastatin Calcium | 231 | 30 |
| Famotidine | 176 | 20 |
| Gabapentin | 162 | 21 |
| Amlodipine Besylate | 128 | 15 |
| Rivaroxaban |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-14
- Last updated
- 2008-11-19
Frequently asked questions
- What is Claudio Zawitkowski's NPI number?
- Claudio Zawitkowski's National Provider Identifier (NPI) is 1578558623, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Claudio Zawitkowski's specialty?
- Claudio Zawitkowski is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Claudio Zawitkowski located?
- Claudio Zawitkowski's practice location on file with NPPES is 4535 30th St, San Diego, CA 92116-4212.
- What is Claudio Zawitkowski's phone number?
- The practice phone number listed in the NPPES registry for Claudio Zawitkowski is (619) 260-1958.
- Does Claudio Zawitkowski accept Medicare?
- Claudio Zawitkowski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Claudio Zawitkowski's NPI active?
- Yes — Claudio Zawitkowski's NPI (1578558623) is active in the NPPES registry as of the last update on 2008-11-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.