Seyed Ahmad Sajjadi, M.D., PHD
NPI 1750733325 · Behavioral Neurology & Neuropsychiatry Physician · Orange, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Seyed Ahmad Sajjadi, M.D., PHD is a Behavioral Neurology & Neuropsychiatry Physician provider in Orange, CA (NPI 1750733325).
Provider details
- NPI number
- 1750733325
- Entity type
- Individual
- Primary specialty
- Behavioral Neurology & Neuropsychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PHD
- Sex
- Male
- Sole proprietor
- No
- License
- A172021 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
316 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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 117 | $160 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 80 | $111 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 72 | $203 |
| Prolonged Office Or Other Outpatient Evaluation and Management Service(s) Beyond the Maximum Required Time of the Primary Procedure Which Has Been Selected Using Total Time on the Date of the Primary Service; Each Additional 15 Minutes By the Physician OrG2212 | 20 | $34 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 14 | $147 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Donepezil Hcl | 245 | 88 |
| Memantine Hcl | 218 | 75 |
| Citalopram Hydrobromidebrand: Citalopram Hbr | 78 | 26 |
| Quetiapine Fumarate | 70 | 21 |
| Rivastigmine | 51 | 15 |
| Mirtazapine | 30 | 15 |
| Memantine Hclbrand: Memantine Hcl Er | 29 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-07-07
- Last updated
- 2024-09-25
- Certified
- 2024-09-25
Frequently asked questions
- What is Seyed Ahmad Sajjadi's NPI number?
- Seyed Ahmad Sajjadi's National Provider Identifier (NPI) is 1750733325, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Seyed Ahmad Sajjadi's specialty?
- Seyed Ahmad Sajjadi is listed in the NPPES registry with a primary specialty of Behavioral Neurology & Neuropsychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Seyed Ahmad Sajjadi located?
- Seyed Ahmad Sajjadi's practice location on file with NPPES is 101 the City Dr S, Orange, CA 92868-3201.
- What is Seyed Ahmad Sajjadi's phone number?
- The practice phone number listed in the NPPES registry for Seyed Ahmad Sajjadi is (714) 456-7890.
- Does Seyed Ahmad Sajjadi accept Medicare?
- Seyed Ahmad Sajjadi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Seyed Ahmad Sajjadi's NPI active?
- Yes — Seyed Ahmad Sajjadi's NPI (1750733325) is active in the NPPES registry as of the last update on 2024-09-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.