Mark Harris, M.D.
NPI 1649262577 · Neurology Physician · Johns Creek, GA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Harris, M.D. is a Neurology Physician provider in Johns Creek, GA (NPI 1649262577).
Provider details
- NPI number
- 1649262577
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 30084 (GA)
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
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
375 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 | 163 | $126 |
| Administration of Psychological Or Neuropsychological Test By Technician, First 30 Minutes96138 | 78 | $34 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 49 | $178 |
| Administration of Psychological Or Neuropsychological Test By Technician, Each Additional 30 Minutes96139 | 27 | $35 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 25 | $164 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Donepezil Hcl | 143 | 55 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 113 | 46 |
| Gabapentin | 78 | 36 |
| Memantine Hcl | 65 | 25 |
| Clonazepam | 58 | 18 |
| Divalproex Sodium | 49 | — |
| Primidone | 43 | 14 |
| Clopidogrel Bisulfate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,938 across 68 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
Additional practice locations (1)
- 3890 Johns Creek Pkwy Ste 210Johns Creek, GA 30024-5647Phone: (770) 454-4685Fax: (404) 250-7366
Registry dates
- Enumerated
- 2005-08-17
- Last updated
- 2025-06-03
- Certified
- 2025-06-03
Frequently asked questions
- What is Mark Harris's NPI number?
- Mark Harris's National Provider Identifier (NPI) is 1649262577, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Harris's specialty?
- Mark Harris is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Harris located?
- Mark Harris's practice location on file with NPPES is 6300 Hospital Pkwy, Johns Creek, GA 30097-1828.
- What is Mark Harris's phone number?
- The practice phone number listed in the NPPES registry for Mark Harris is (770) 454-4685.
- Does Mark Harris accept Medicare?
- Mark Harris is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Harris's NPI active?
- Yes — Mark Harris's NPI (1649262577) is active in the NPPES registry as of the last update on 2025-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.