Quick answers
- Does Preston K. Lonis accept Medicare assignment?
- Medicare's clinician data says Preston K. Lonis may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Preston K. Lonis see?
- In 2024, CMS data shows 210 Original Medicare patients and 110,140 services for Preston K. Lonis. This counts Original Medicare only and measures volume, not quality.
- What is Preston K. Lonis's NPI number?
- 1285254623. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Preston K. Lonis, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 210 |
|---|---|
| Services billed to Medicare | 110,140 |
| Different services or procedures | 30 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Injection, inclisiran, 1 mg (J1306)30,672 services
- Injection, tildrakizumab, 1 mg (J3245)5,200 services
- Injection, omalizumab, 5 mg (J2357)3,360 services
- Injection, denosumab, 1 mg (J0897)2,280 services
- Injection of drug or substance under skin or into muscle (96372)423 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis64%
- Ischemic heart disease52%
- Diabetes41%
- Osteoporosis37%
Practice locations
Addresses where Preston K. Lonis is enrolled with Medicare (CMS data updated October 2, 2026).
- 11103 Venice BlvdLos Angeles, CA 90034
- 113 N San Vicente Blvd, Suite 368Beverly Hills, CA 90211
- 21200 Kittridge St, Apt 2131Woodland Hills, CA 91303
- 511 Union St, Suite 2700Nashville, TN 37219
- 5350 E High St, Suite 300Phoenix, AZ 85054
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Los Angeles
Clinicians with the same Medicare primary specialty in Los Angeles, CA — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2022 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1285254623 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians