Gastroenterology · Santa Monica, CA
NPI
1700944378
Since 2006
Specialty
Gastroenterology
Code 174400000X
Group practices
1
Medicare group memberships
Hospitals
1
Hospital affiliations
2021 Santa Monica Blvd Ste 325e
Santa Monica, CA, 90404
Phone (310) 453-0504
Groups this clinician bills Medicare through
Medicare paid, 2024
$116K
1,660 services
Medicare patients, 2024
396
Average age 75
Drug cost, 2024
$707K
1,343 prescriptions
Company payments, 2025
$3,695
From 14 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Shahrad R Shamsi was code 88305 (surgical pathology examination), 331 times for 109 patients. In total Shahrad R Shamsi billed 1,660 services in 35 codes, and Medicare paid $116K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2012-11-08.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 88305 Surgical Pathology Examination | Office | 331 | 109 | $30.57 | $10K |
| 99214 Office E&M - Established | Office | 330 | 194 | $99.83 | $33K |
| 88313 Surgical Pathology Examination | Office | 224 | 77 | $9.80 | $2,194 |
| 99204 Office E&M - New | Office | 146 | 146 | $127.49 | $19K |
| 88342 Immunohistochemistry | Office | 118 | 72 | $28.49 | $3,362 |
| 99213 Office E&M - Established | Office | 111 | 92 | $72.47 | $8,044 |
| 43239 Upper GI Endoscopy | Facility | 73 | 73 | $65.44 | $4,777 |
| 45380 Lower GI Endoscopy - Other | Facility | 52 | 52 | $144.60 | $7,519 |
| 45378 Lower GI Endoscopy - Other | Facility | 45 | 44 | $146.16 | $6,577 |
| 99203 Office E&M - New | Office | 42 | 42 | $94.90 | $3,986 |
| 46600 Digestive/Gastrointestinal | Office | 28 | 24 | $71.19 | $1,993 |
| 88312 Surgical Pathology Examination | Office | 27 | 22 | $21.55 | $582 |
| 88341 Immunohistochemistry | Office | 26 | 20 | $22.77 | $592 |
| 45385 Colonoscopy - Lesion Removal | Facility | 16 | 16 | $207.26 | $3,316 |
| 99223 Hospital E&M - Initial | Facility | 11 | 11 | $142.65 | $1,569 |
By year: 2022 $122K for 1,217 services; 2023 $136K for 2,077 services; 2024 $116K for 1,660 services.
Lab tests billed to Medicare, 2024
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 88305 Surgical Pathology Examination | 331 | 109 | $30.57 | $10K |
| 88313 Surgical Pathology Examination | 224 | 77 | $9.80 | $2,194 |
| 88342 Immunohistochemistry | 118 | 72 | $28.49 | $3,362 |
| 88312 Surgical Pathology Examination | 27 | 22 | $21.55 | $582 |
| 88341 Immunohistochemistry | 26 | 20 | $22.77 | $592 |
Medicare prescription drug claims, 2024
In 2024, the drug Shahrad R Shamsi prescribed most often to Medicare patients was Omeprazole, with 263 prescriptions and refills. In total Shahrad R Shamsi wrote 1,343 Medicare prescriptions that cost $707K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Omeprazole Generic | 263 | 517 | 91 | $3,178 |
| Motegrity Prucalopride Succinate | 79 | 105 | 15 | $53K |
| Famotidine Generic | 79 | 126 | 27 | $619 |
| Creon Lipase/Protease/Amylase | 67 | 69 | 13 | $332K |
| Erythromycin Erythromycin Base | 66 | 86 | 26 | $18K |
| Pantoprazole Sodium Generic | 66 | 135 | 20 | $780 |
| Nystatin Generic | 58 | 58 | 47 | $2,028 |
| Sucralfate Generic | 57 | 63 | 31 | $2,027 |
| Linzess Linaclotide | 41 | 56 | Under 11 | $30K |
| Xifaxan Rifaximin | 35 | 35 | 19 | $75K |
| Mesalamine Generic | 34 | 66 | 11 | $14K |
| Bupropion Xl Bupropion Hcl | 30 | 34 | Under 11 | $410 |
| Esomeprazole Magnesium Generic | 25 | 45 | Under 11 | $329 |
| Rexulti Brexpiprazole | 24 | 24 | Under 11 | $35K |
| Citalopram Hbr Citalopram Hydrobromide | 23 | 23 | Under 11 | $199 |
Brand drugs: 367 claims; generic drugs: 976 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Shahrad R Shamsi $3,695 ($3,695 in general payments such as food, travel and fees) from 14 companies. The largest payer was Abbvie Inc. with $969.
| Company | Payments | Amount |
|---|---|---|
| Abbvie Inc. ABBV | 31 | $969 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC BHC | 30 | $771 |
| Genzyme Corporation SNY | 10 | $518 |
| Janssen Biotech, Inc. JNJ | 8 | $517 |
| Ardelyx, Inc. ARDX | 11 | $330 |
| Madrigal Pharmaceuticals MDGL | 2 | $176 |
| Alnylam Pharmaceuticals Inc. ALNY | 4 | $131 |
| QOL Medical, LLC | 3 | $74.55 |
| Phathom Pharmaceuticals, Inc. PHAT | 2 | $58.07 |
| CapsoVision, Inc. CV | 2 | $43.34 |
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.