Sabina Wallach, M.D.
NPI 1871529081 · Hematology & Oncology Physician · La Jolla, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sabina Wallach, M.D. is a Hematology & Oncology Physician provider in La Jolla, CA (NPI 1871529081).
Provider details
- NPI number
- 1871529081
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A34070 (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
20 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
5,604 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) |
|---|---|---|
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 1,008 | $8 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 974 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 889 | $137 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 868 | $10 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 723 | $16 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 35 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 97 | 28 |
| Anastrozole | 79 | 26 |
| Lorazepam | 41 | — |
| Warfarin Sodium | 36 | — |
| Apixabanbrand: Eliquis | 36 | — |
| Letrozole | 35 | 11 |
| Hydroxyurea | 34 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,065 across 77 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
- 2006-06-23
- Last updated
- 2007-08-16
Frequently asked questions
- What is Sabina Wallach's NPI number?
- Sabina Wallach's National Provider Identifier (NPI) is 1871529081, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sabina Wallach's specialty?
- Sabina Wallach is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Sabina Wallach located?
- Sabina Wallach's practice location on file with NPPES is 9850 Genesee Ave, La Jolla, CA 92037-1212.
- What is Sabina Wallach's phone number?
- The practice phone number listed in the NPPES registry for Sabina Wallach is (858) 558-8666.
- Does Sabina Wallach accept Medicare?
- Sabina Wallach is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sabina Wallach's NPI active?
- Yes — Sabina Wallach's NPI (1871529081) is active in the NPPES registry as of the last update on 2007-08-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.