Lauren Zatarain, M.D.
NPI 1194916650 · Hematology & Oncology Physician · Baton Rouge, LA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lauren Zatarain, M.D. is a Hematology & Oncology Physician provider in Baton Rouge, LA (NPI 1194916650).
Provider details
- NPI number
- 1194916650
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- MD.202186 (LA)
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
18 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
1,370 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 338 | $168 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 290 | $14 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 243 | $119 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 120 | $84 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 112 | $113 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 54 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Letrozole | 289 | 66 |
| Tamoxifen Citrate | 135 | 38 |
| Anastrozole | 125 | 36 |
| Gabapentin | 111 | 27 |
| Ondansetronbrand: Ondansetron Odt | 74 | 24 |
| Levothyroxine Sodium | 51 | 13 |
| Mirtazapine | 48 | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$601 across 15 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
- 2007-08-08
- Last updated
- 2021-05-21
- Certified
- 2021-05-21
Frequently asked questions
- What is Lauren Zatarain's NPI number?
- Lauren Zatarain's National Provider Identifier (NPI) is 1194916650, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lauren Zatarain's specialty?
- Lauren Zatarain is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Lauren Zatarain located?
- Lauren Zatarain's practice location on file with NPPES is 4950 Essen Ln, Baton Rouge, LA 70809-3738.
- What is Lauren Zatarain's phone number?
- The practice phone number listed in the NPPES registry for Lauren Zatarain is (225) 757-0343.
- Does Lauren Zatarain accept Medicare?
- Lauren Zatarain is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lauren Zatarain's NPI active?
- Yes — Lauren Zatarain's NPI (1194916650) is active in the NPPES registry as of the last update on 2021-05-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.