Psychiatry and Neurology, Neurology · Portland, OR
NPI
1225015761
Since 2005
Specialty
Psychiatry and Neurology, Neurology
Code 2084N0400X
Group practices
1
Medicare group memberships
Hospitals
3
Hospital affiliations
3303 SW Bond Ave, Suite 8
Portland, OR, 97239
Phone (503) 494-7772
Groups this clinician bills Medicare through
Medicare paid, 2024
$34K
535 services
Medicare patients, 2024
206
Average age 70
Drug cost, 2024
$6.8M
1,174 prescriptions
Company payments, 2025
$6,623
From 6 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Nizar Chahin was code 99215 (office e&m - established), 115 times for 54 patients. In total Nizar Chahin billed 535 services in 17 codes, and Medicare paid $34K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2016-08-19.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99215 Office E&M - Established | Office | 115 | 54 | $110.13 | $13K |
| 99214 Office E&M - Established | Office | 102 | 81 | $75.21 | $7,672 |
| G2211 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's | Office | 88 | 56 | $13.03 | $1,147 |
| 95886 Electrical Nerve Conductivity | Office | 76 | 69 | $36.43 | $2,769 |
| 95885 Electrical Nerve Conductivity | Office | 43 | 31 | $15.35 | $660 |
| 95910 Electrical Nerve Conductivity | Office | 21 | 21 | $76.87 | $1,614 |
| 95911 Electrical Nerve Conductivity | Office | 19 | 19 | $109.64 | $2,083 |
| 95909 Electrical Nerve Conductivity | Office | 15 | 15 | $61.42 | $921 |
| 95908 Electrical Nerve Conductivity | Office | 12 | 12 | $54.86 | $658 |
| 95912 Electrical Nerve Conductivity | Office | 11 | 11 | $120.09 | $1,321 |
By year: 2022 $28K for 395 services; 2023 $30K for 404 services; 2024 $34K for 535 services.
Medicare prescription drug claims, 2024
In 2024, the drug Nizar Chahin prescribed most often to Medicare patients was Mycophenolate Mofetil, with 148 prescriptions and refills. In total Nizar Chahin wrote 1,174 Medicare prescriptions that cost $6.8M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Mycophenolate Mofetil Generic | 148 | 211 | 26 | $18K |
| Gabapentin Generic | 100 | 114 | 16 | $3,376 |
| Pyridostigmine Bromide Generic | 96 | 142 | 18 | $6,961 |
| Prednisone Generic | 79 | 146 | 14 | $899 |
| Pregabalin Generic | 78 | 90 | 12 | $1,813 |
| Riluzole Generic | 75 | 130 | 15 | $14K |
| Methotrexate Methotrexate Sodium | 55 | 92 | Under 11 | $947 |
| Radicava Ors Edaravone | 50 | 50 | Under 11 | $718K |
| Firdapse Amifampridine Phosphate | 37 | 37 | Under 11 | $2.3M |
| Azathioprine Generic | 35 | 59 | Under 11 | $1,788 |
| Hyqvia Igg/Hyaluronidase,recombinant | 31 | 31 | Under 11 | $161K |
| Evrysdi Risdiplam | 31 | 31 | Under 11 | $827K |
| Mexiletine Hcl Generic | 28 | 42 | Under 11 | $2,205 |
| Gammagard Liquid Immun Glob G(Igg)/Gly/Iga Ov50 | 27 | 27 | Under 11 | $276K |
| Panzyga Immun Glob G(Igg)-Ifas/Glycine | 26 | 26 | Under 11 | $217K |
Brand drugs: 349 claims; generic drugs: 825 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Nizar Chahin $6,623 ($6,623 in general payments such as food, travel and fees) from 6 companies. The largest payer was Amicus Therapeutics, Inc. with $6,563.
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.