Parshaw Dorriz, MD
NPI 1972940625 · Neurology Physician · Mission Viejo, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Parshaw Dorriz, MD is a Neurology Physician provider in Mission Viejo, CA (NPI 1972940625).
Provider details
- NPI number
- 1972940625
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A137931 (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
13 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
992 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) |
|---|---|---|
| Measurement of Brain Wave Activity With Video (veeg), 12-26 Hours With Review and Report By Health Care Professional95720 | 187 | $213 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 115 | $138 |
| Measurement of Brain Wave Activity (eeg), 2-12 Hours With Health Care Professional Review and Report95717 | 106 | $109 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 76 | $123 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 66 | $192 |
| Critical Care, First 30-74 Minutes99291 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levetiracetam | 157 | 44 |
| Donepezil Hcl | 107 | 25 |
| Lamotrigine | 103 | 19 |
| Memantine Hcl | 44 | 14 |
| Divalproex Sodium | 42 | — |
| Gabapentin | 39 | 17 |
| Phenobarbital | 37 | — |
| Escitalopram Oxalate | 36 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$371,779 across 133 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
- 2013-06-03
- Last updated
- 2021-10-21
- Certified
- 2021-10-21
Frequently asked questions
- What is Parshaw Dorriz's NPI number?
- Parshaw Dorriz's National Provider Identifier (NPI) is 1972940625, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Parshaw Dorriz's specialty?
- Parshaw Dorriz is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Parshaw Dorriz located?
- Parshaw Dorriz's practice location on file with NPPES is 26800 Crown Valley Pkwy Ste 385, Mission Viejo, CA 92691-7320.
- What is Parshaw Dorriz's phone number?
- The practice phone number listed in the NPPES registry for Parshaw Dorriz is (949) 542-8002.
- Does Parshaw Dorriz accept Medicare?
- Parshaw Dorriz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Parshaw Dorriz's NPI active?
- Yes — Parshaw Dorriz's NPI (1972940625) is active in the NPPES registry as of the last update on 2021-10-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.