Catherine Juillard, M.D.
NPI 1023345048 · Surgery Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Juillard, M.D. is a Surgery Physician provider in Los Angeles, CA (NPI 1023345048).
Provider details
- NPI number
- 1023345048
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A99965 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
171 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 88 | $124 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 45 | $182 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 38 | $83 |
Typical Medicare-allowed amounts for these services range $83–$182 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (1)
- 757 Westwood Plz Ste 8501Los Angeles, CA 90095-8358Phone: (310) 267-9609Fax: (310) 267-3590
Registry dates
- Enumerated
- 2009-11-12
- Last updated
- 2019-12-26
- Certified
- 2019-12-26
Frequently asked questions
- What is Catherine Juillard's NPI number?
- Catherine Juillard's National Provider Identifier (NPI) is 1023345048, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Juillard's specialty?
- Catherine Juillard is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Catherine Juillard located?
- Catherine Juillard's practice location on file with NPPES is 200 Ucla Medical Plz Ste 214, Los Angeles, CA 90095-8344.
- What is Catherine Juillard's phone number?
- The practice phone number listed in the NPPES registry for Catherine Juillard is (310) 794-7788.
- Does Catherine Juillard accept Medicare?
- Catherine Juillard is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Juillard's NPI active?
- Yes — Catherine Juillard's NPI (1023345048) is active in the NPPES registry as of the last update on 2019-12-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.