Psychiatry and Neurology, Neurology · Farmington Hills, MI
NPI
1912996265
Since 2005
Specialty
Psychiatry and Neurology, Neurology
Code 2084N0400X
Group practices
1
Medicare group memberships
Hospitals
1
Hospital affiliations
28595 Orchard Lake Rd, Suite 200
Farmington Hills, MI, 48334
Phone (248) 553-0010
Groups this clinician bills Medicare through
Medicare paid, 2024
$42K
465 services
Medicare patients, 2024
134
Average age 71
Drug cost, 2024
$1.0M
256 prescriptions
Company payments, 2025
$32.33
From 1 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by David A Simpson was code 95886 (electrical nerve conductivity), 229 times for 118 patients. In total David A Simpson billed 465 services in 9 codes, and Medicare paid $42K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2024-03-21.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 95886 Electrical Nerve Conductivity | Office | 229 | 118 | $49.09 | $11K |
| 95913 Electrical Nerve Conductivity | Office | 104 | 93 | $171.11 | $18K |
| 95872 Electrical Nerve Conductivity | Office | 47 | 40 | $125.61 | $5,904 |
| 99214 Office E&M - Established | Office | 37 | 18 | $84.77 | $3,136 |
| 95911 Electrical Nerve Conductivity | Office | 25 | 25 | $139.90 | $3,498 |
| 95922 Electrical Nerve Conductivity | Office | 16 | 15 | $34.65 | $554 |
By year: 2022 $67K for 505 services; 2023 $56K for 429 services; 2024 $42K for 465 services.
Medicare prescription drug claims, 2024
In 2024, the drug David A Simpson prescribed most often to Medicare patients was Gammagard Liquid (Immun Glob G(Igg)/Gly/Iga Ov50), with 35 prescriptions and refills. In total David A Simpson wrote 256 Medicare prescriptions that cost $1.0M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Gammagard Liquid Immun Glob G(Igg)/Gly/Iga Ov50 | 35 | 35 | Under 11 | $394K |
| Privigen Immun Glob G(Igg)/Pro/Iga 0-50 | 30 | 30 | Under 11 | $171K |
| Baclofen Generic | 20 | 28 | Under 11 | $1,221 |
| Gamunex-C Immune Globul G/Gly/Iga Avg 46 | 15 | 15 | Under 11 | $119K |
| Panzyga Immun Glob G(Igg)-Ifas/Glycine | 14 | 14 | Under 11 | $234K |
| Cutaquig Immun Glob G(Igg)-Hipp/Maltose | 13 | 13 | Under 11 | $66K |
| Atomoxetine Hcl Generic | 11 | 11 | Under 11 | $661 |
Brand drugs: 116 claims; generic drugs: 140 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid David A Simpson $32.33 ($32.33 in general payments such as food, travel and fees) from 1 company. The largest payer was Teva Pharmaceuticals USA, Inc. with $32.33.
| Company | Payments | Amount |
|---|---|---|
| Teva Pharmaceuticals USA, Inc. TEVA | 1 | $32.33 |
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.