Parissa Hagh, MD
NPI 1922175835 · Neurology Physician · Irvine, CA
Parissa Hagh, MD is a Neurology Physician provider in Irvine, CA (NPI 1922175835).
Provider details
- NPI number
- 1922175835
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A60353 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 55 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Galantamine Hbrbrand: Galantamine Er | 223 | 84 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 183 | 62 |
| Donepezil Hcl | 175 | 67 |
| Gabapentin | 129 | 56 |
| Levetiracetam | 119 | 39 |
| Memantine Hcl | 111 | 36 |
| Sertraline Hcl | 98 | 40 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$318 across 3 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
- 2006-11-29
- Last updated
- 2021-11-29
Frequently asked questions
- What is Parissa Hagh's NPI number?
- Parissa Hagh's National Provider Identifier (NPI) is 1922175835, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Parissa Hagh's specialty?
- Parissa Hagh is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Parissa Hagh located?
- Parissa Hagh's practice location on file with NPPES is 6650 Alton Pkwy, Irvine, CA 92618-3734.
- What is Parissa Hagh's phone number?
- The practice phone number listed in the NPPES registry for Parissa Hagh is (888) 988-2800.
- Is Parissa Hagh's NPI active?
- Yes — Parissa Hagh's NPI (1922175835) is active in the NPPES registry as of the last update on 2021-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.