Duke Phan, MD
NPI 1437352630 · Neurology Physician · Fountain Valley, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Duke Phan, MD is a Neurology Physician provider in Fountain Valley, CA (NPI 1437352630).
Provider details
- NPI number
- 1437352630
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A51193 (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
19 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
1,121 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 538 | $81 |
| Prolonged Hospital Inpatient Or Observation Care Evaluation and Management Service(s) Beyond the Total Time for the Primary Service (when the Primary Service Has Been Selected Using Time on the Date of the Primary Service); Each Additional 15 Minutes By ThG0316 | 163 | $31 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 93 | $179 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 77 | $235 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 77 | $194 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Donepezil Hcl | 335 | 83 |
| Memantine Hcl | 168 | 41 |
| Nortriptyline Hcl | 126 | 31 |
| Pramipexole Di-Hclbrand: Pramipexole Dihydrochloride | 112 | 22 |
| Gabapentin | 110 | 26 |
| Levetiracetam | 104 | 20 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 103 | 27 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$278 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
- 2007-06-06
- Last updated
- 2023-03-07
- Certified
- 2020-02-21
Frequently asked questions
- What is Duke Phan's NPI number?
- Duke Phan's National Provider Identifier (NPI) is 1437352630, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Duke Phan's specialty?
- Duke Phan is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Duke Phan located?
- Duke Phan's practice location on file with NPPES is 17220 Newhope St, Fountain Valley, CA 92708-4272.
- What is Duke Phan's phone number?
- The practice phone number listed in the NPPES registry for Duke Phan is (714) 546-4367.
- Does Duke Phan accept Medicare?
- Duke Phan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Duke Phan's NPI active?
- Yes — Duke Phan's NPI (1437352630) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.