Quick answers
- Does Diana Cizmadija accept Medicare assignment?
- Yes. Medicare's clinician data says Diana Cizmadija accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Diana Cizmadija see?
- In 2024, CMS data shows 571 Original Medicare patients and 938 services for Diana Cizmadija. This counts Original Medicare only and measures volume, not quality.
- What is Diana Cizmadija's NPI number?
- 1629408307. 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 Diana Cizmadija, 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 | 571 |
|---|---|
| Services billed to Medicare | 938 |
| Different services or procedures | 37 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)341 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)275 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)118 services
- Injection, ketorolac tromethamine, per 15 mg (J1885)33 services
- Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg (J7613)33 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 cholesterol75%
- High blood pressure69%
- Arthritis61%
- Ischemic heart disease34%
- Diabetes24%
- Anxiety24%
Practice locations
Addresses where Diana Cizmadija is enrolled with Medicare (CMS data updated October 2, 2026).
- 100 Moody Ct, Suite 200Thousand Oaks, CA 91360 (805) 418‑3500
- 2020 Santa Monica Blvd, Suite 210Santa Monica, CA 90404 (310) 458‑2381
- 248 Hampshire Rd, Suite 100Thousand Oaks, CA 91361 (805) 370‑0040
Group practices
Medicare enrollment lists Diana Cizmadija as a member of this group (CMS data updated October 2, 2026).
- The Regents of the University of California1,462 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Thousand Oaks
Clinicians with the same Medicare primary specialty in Thousand Oaks, CA — not a recommendation.
Other clinicians in The Regents of the University of California
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2013 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1629408307 |
| 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