Donna Dorriz, D.O.
NPI 1033642608 · Family Medicine Physician · Santa Clarita, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Donna Dorriz, D.O. is a Family Medicine Physician provider in Santa Clarita, CA (NPI 1033642608).
Provider details
- NPI number
- 1033642608
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 20A18442 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
391 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 101 | $138 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 94 | $99 |
| Amplifed Dna Or Rna Probe Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) Antigen87635 | 65 | $50 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 48 | $16 |
| Automated Urinalysis Test81003 | 26 | $2 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azithromycin | 23 | 22 |
| Rosuvastatin Calcium | 23 | 14 |
| Losartan Potassium | 20 | — |
| Prednisone | 19 | 18 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 15 | 13 |
| Atorvastatin Calcium | 14 | — |
| Metformin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-04-10
- Last updated
- 2023-05-15
- Certified
- 2023-05-11
Frequently asked questions
- What is Donna Dorriz's NPI number?
- Donna Dorriz's National Provider Identifier (NPI) is 1033642608, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donna Dorriz's specialty?
- Donna Dorriz is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Donna Dorriz located?
- Donna Dorriz's practice location on file with NPPES is 24035 Newhall Ranch Rd, Santa Clarita, CA 91355-5702.
- What is Donna Dorriz's phone number?
- The practice phone number listed in the NPPES registry for Donna Dorriz is (661) 291-3444.
- Does Donna Dorriz accept Medicare?
- Donna Dorriz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Donna Dorriz's NPI active?
- Yes — Donna Dorriz's NPI (1033642608) is active in the NPPES registry as of the last update on 2023-05-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.