Ann Wexler, MD
NPI 1669482576 · Hematology & Oncology Physician · Berkeley, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ann Wexler, MD is a Hematology & Oncology Physician provider in Berkeley, CA (NPI 1669482576).
Provider details
- NPI number
- 1669482576
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A96244 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
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
11,728 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 | 1,562 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 1,527 | $8 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,472 | $154 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 951 | $20 |
| Blood Test, Basic Group of Blood Chemicals (calcium, Total)80048 | 768 | $8 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 699 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 48 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 98 | 21 |
| Letrozole | 69 | 18 |
| Mirtazapine | 69 | 23 |
| Alendronate Sodium | 52 | 17 |
| Gabapentin | 45 | 16 |
| Amlodipine Besylate | 41 | — |
| Levothyroxine Sodium | 36 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$7,147 across 223 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
- 2006-08-09
- Last updated
- 2008-08-07
Frequently asked questions
- What is Ann Wexler's NPI number?
- Ann Wexler's National Provider Identifier (NPI) is 1669482576, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ann Wexler's specialty?
- Ann Wexler is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Ann Wexler located?
- Ann Wexler's practice location on file with NPPES is 2001 Dwight Way, Berkeley, CA 94704-2608.
- What is Ann Wexler's phone number?
- The practice phone number listed in the NPPES registry for Ann Wexler is (510) 204-6402.
- Does Ann Wexler accept Medicare?
- Ann Wexler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ann Wexler's NPI active?
- Yes — Ann Wexler's NPI (1669482576) is active in the NPPES registry as of the last update on 2008-08-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.