Diana Cizmadija
NPI 1629408307 · Nurse Practitioner · Thousand Oaks, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Cizmadija is a Nurse Practitioner provider in Thousand Oaks, CA (NPI 1629408307).
Provider details
- NPI number
- 1629408307
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- NP15371 (OH)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 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
788 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 341 | $105 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 275 | $80 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 118 | $13 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 25 | $13 |
| Removal of Impacted Ear Wax By Washing69209 | 15 | $20 |
| Detection Test By Immunoassay With Direct Visual Observation for Streptococcus, Group a (strep)87880 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 79 | 78 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 53 | 48 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 35 | 34 |
| Meloxicam | 35 | 32 |
| Fluticasone Propionate | 31 | 27 |
| Azithromycin | 29 | 29 |
| Cephalexin | 27 | 23 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$196 across 2 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
- 2013-11-18
- Last updated
- 2022-04-26
- Certified
- 2022-04-26
Frequently asked questions
- What is Diana Cizmadija's NPI number?
- Diana Cizmadija's National Provider Identifier (NPI) is 1629408307, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Cizmadija's specialty?
- Diana Cizmadija is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Diana Cizmadija located?
- Diana Cizmadija's practice location on file with NPPES is 248 Hampshire Rd Ste 100, Thousand Oaks, CA 91361-2401.
- What is Diana Cizmadija's phone number?
- The practice phone number listed in the NPPES registry for Diana Cizmadija is (805) 390-0127.
- Does Diana Cizmadija accept Medicare?
- Diana Cizmadija is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Cizmadija's NPI active?
- Yes — Diana Cizmadija's NPI (1629408307) is active in the NPPES registry as of the last update on 2022-04-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.