Joshua Ellenhorn, MD
NPI 1699871525 · Surgical Oncology Physician · Los Angeles, CA
Joshua Ellenhorn, MD is a Surgical Oncology Physician provider in Los Angeles, CA (NPI 1699871525).
Provider details
- NPI number
- 1699871525
- Entity type
- Individual
- Primary specialty
- Surgical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G57872 (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
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
451 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) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 85 | $167 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 67 | $91 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 52 | $112 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 49 | $130 |
| Repair of Groin Hernia Using an Endoscope49650 | 36 | $435 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$488 across 13 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
- 2006-09-16
- Last updated
- 2025-12-16
- Certified
- 2025-12-16
Frequently asked questions
- What is Joshua Ellenhorn's NPI number?
- Joshua Ellenhorn's National Provider Identifier (NPI) is 1699871525, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joshua Ellenhorn's specialty?
- Joshua Ellenhorn is listed in the NPPES registry with a primary specialty of Surgical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Joshua Ellenhorn located?
- Joshua Ellenhorn's practice location on file with NPPES is 8635 W 3rd St Ste 880w, Los Angeles, CA 90048-6155.
- What is Joshua Ellenhorn's phone number?
- The practice phone number listed in the NPPES registry for Joshua Ellenhorn is (310) 289-1518.
- Is Joshua Ellenhorn's NPI active?
- Yes — Joshua Ellenhorn's NPI (1699871525) is active in the NPPES registry as of the last update on 2025-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.