Adam Zweig, MD
NPI 1265527600 · Internal Medicine Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Adam Zweig, MD is a Internal Medicine Physician provider in San Diego, CA (NPI 1265527600).
Provider details
- NPI number
- 1265527600
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G73926 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
632 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 231 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 219 | $97 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 47 | $137 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 44 | $16 |
| Admn Sarscov2 Vacc 1 Dose90480 | 34 | $39 |
| Administration of Influenza Virus VaccineG0008 | 29 | $29 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 100 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 221 | 30 |
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 184 | 30 |
| Emtricitabine/Tenofov Alafenambrand: Descovy | 160 | 17 |
| Dolutegravir Sodium/Lamivudinebrand: Dovato | 157 | 19 |
| Trazodone Hcl | 113 | 14 |
| Omeprazole | 110 | 12 |
| Amlodipine Besylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$97,348 across 193 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-03
- Last updated
- 2024-05-07
- Certified
- 2024-05-07
Frequently asked questions
- What is Adam Zweig's NPI number?
- Adam Zweig's National Provider Identifier (NPI) is 1265527600, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Adam Zweig's specialty?
- Adam Zweig is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Adam Zweig located?
- Adam Zweig's practice location on file with NPPES is 3580 5th Ave, San Diego, CA 92103-5017.
- What is Adam Zweig's phone number?
- The practice phone number listed in the NPPES registry for Adam Zweig is (619) 516-8931.
- Does Adam Zweig accept Medicare?
- Adam Zweig is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Adam Zweig's NPI active?
- Yes — Adam Zweig's NPI (1265527600) is active in the NPPES registry as of the last update on 2024-05-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.