Jennifer Baker, MD
NPI 1447504121 · Surgery Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Surgical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennifer Baker, MD is a Surgery Physician provider in Los Angeles, CA (NPI 1447504121).
Provider details
- NPI number
- 1447504121
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A120237 (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 tenure25% of score
13 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
134 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 30 | $101 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 24 | $242 |
| Partial Removal of Breast19301 | 22 | $658 |
| Biopsy Or Removal of Deep Lymph Nodes of Underarm38525 | 16 | $246 |
| Imaging of Lymph Nodes During Surgery38900 | 16 | $146 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$435 across 4 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
- 2012-11-02
- Last updated
- 2019-12-23
- Certified
- 2019-12-23
Frequently asked questions
- What is Jennifer Baker's NPI number?
- Jennifer Baker's National Provider Identifier (NPI) is 1447504121, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennifer Baker's specialty?
- Jennifer Baker is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Jennifer Baker located?
- Jennifer Baker's practice location on file with NPPES is 100 Ucla Medical Plaza Suite 310, Los Angeles, CA 90095-9000.
- What is Jennifer Baker's phone number?
- The practice phone number listed in the NPPES registry for Jennifer Baker is (424) 259-8791.
- Does Jennifer Baker accept Medicare?
- Jennifer Baker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jennifer Baker's NPI active?
- Yes — Jennifer Baker's NPI (1447504121) is active in the NPPES registry as of the last update on 2019-12-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.