Diane Ling, M.D.
NPI 1093100927 · Radiation Oncology Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diane Ling, M.D. is a Radiation Oncology Physician provider in Los Angeles, CA (NPI 1093100927).
Provider details
- NPI number
- 1093100927
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A168533 (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
11 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
857 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) |
|---|---|---|
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 188 | $47 |
| Calculation of Radiation Therapy Dose77300 | 160 | $34 |
| Design and Construction of Complex Radiation Treatment Device77334 | 140 | $64 |
| Stereoscopic X-Ray Guidance for Localization of Target Volume for the Delivery of Radiation TherapyG6002 | 60 | $22 |
| Radiation Treatment Management, 5 Treatment Sessions77427 | 55 | $202 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 37 | $188 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$170 across 1 record (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
- 2015-03-28
- Last updated
- 2023-11-27
- Certified
- 2020-09-17
Frequently asked questions
- What is Diane Ling's NPI number?
- Diane Ling's National Provider Identifier (NPI) is 1093100927, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diane Ling's specialty?
- Diane Ling is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Diane Ling located?
- Diane Ling's practice location on file with NPPES is 1441 Eastlake Ave, Los Angeles, CA 90089-2536.
- What is Diane Ling's phone number?
- The practice phone number listed in the NPPES registry for Diane Ling is (323) 865-3050.
- Does Diane Ling accept Medicare?
- Diane Ling is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diane Ling's NPI active?
- Yes — Diane Ling's NPI (1093100927) is active in the NPPES registry as of the last update on 2023-11-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.