Thomas Lomis, M.D.
NPI 1023037199 · Surgical Oncology Physician · Van Nuys, CA
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Lomis, M.D. is a Surgical Oncology Physician provider in Van Nuys, CA (NPI 1023037199).
Provider details
- NPI number
- 1023037199
- Entity type
- Individual
- Primary specialty
- Surgical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G83600 (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
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
365 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) |
|---|---|---|
| Screening Mammography77067 | 102 | $132 |
| Screening 3d Breast Mammography77063 | 100 | $52 |
| Complete Ultrasound Scan of 1 Breast76641 | 49 | $151 |
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 38 | $49 |
| Diagnostic Mammography of 1 Breast77065 | 24 | $133 |
| Diagnostic Mammography of Both Breasts77066 | 21 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$804 across 23 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
- 2006-07-19
- Last updated
- 2007-07-09
Frequently asked questions
- What is Thomas Lomis's NPI number?
- Thomas Lomis's National Provider Identifier (NPI) is 1023037199, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Lomis's specialty?
- Thomas Lomis is listed in the NPPES registry with a primary specialty of Surgical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Lomis located?
- Thomas Lomis's practice location on file with NPPES is 15211 Vanowen St, Van Nuys, CA 91405-3606.
- What is Thomas Lomis's phone number?
- The practice phone number listed in the NPPES registry for Thomas Lomis is (818) 782-3255.
- Does Thomas Lomis accept Medicare?
- Thomas Lomis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Lomis's NPI active?
- Yes — Thomas Lomis's NPI (1023037199) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.