Johnson Moon, M.D.
NPI 1457407579 · Neurology Physician · Fullerton, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Johnson Moon, M.D. is a Neurology Physician provider in Fullerton, CA (NPI 1457407579).
Provider details
- NPI number
- 1457407579
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A86444 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
904 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 456 | $130 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 173 | $167 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 95 | $16 |
| Measurement of Brain Wave Activity (eeg), Awake and Asleep95819 | 63 | $432 |
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, Complete Study95886 | 27 | $101 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Donepezil Hcl | 323 | 131 |
| Gabapentin | 197 | 86 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 176 | 60 |
| Levetiracetam | 156 | 42 |
| Memantine Hcl | 146 | 48 |
| Topiramate | 129 | 37 |
| Galantamine Hbrbrand: Galantamine Er | 104 | 37 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,766 across 43 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
- 2007-01-25
- Last updated
- 2011-07-08
Frequently asked questions
- What is Johnson Moon's NPI number?
- Johnson Moon's National Provider Identifier (NPI) is 1457407579, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Johnson Moon's specialty?
- Johnson Moon is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Johnson Moon located?
- Johnson Moon's practice location on file with NPPES is 381 E Imperial Highway, Fullerton, CA 92835.
- What is Johnson Moon's phone number?
- The practice phone number listed in the NPPES registry for Johnson Moon is (714) 879-7200.
- Does Johnson Moon accept Medicare?
- Johnson Moon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Johnson Moon's NPI active?
- Yes — Johnson Moon's NPI (1457407579) is active in the NPPES registry as of the last update on 2011-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.