Internal Medicine, Gastroenterology · Phoenix, AZ
NPI
1881698264
Since 2005
Specialty
Internal Medicine, Gastroenterology
Code 207RG0100X
Group practices
1
Medicare group memberships
Hospitals
1
Hospital affiliations
9250 N 3rd St Ste 4035
Phoenix, AZ, 85020
Phone (623) 279-3575
Groups this clinician bills Medicare through
Medicare paid, 2024
$140K
1,456 services
Medicare patients, 2024
716
Average age 75
Drug cost, 2024
$876K
2,150 prescriptions
Company payments, 2025
$2,882
From 17 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Mark D Gulinson was code 99213 (office e&m - established), 332 times for 250 patients. In total Mark D Gulinson billed 1,456 services in 28 codes, and Medicare paid $140K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2020-11-03.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99213 Office E&M - Established | Office | 332 | 250 | $63.80 | $21K |
| 99203 Office E&M - New | Office | 169 | 169 | $75.87 | $13K |
| 45380 Lower GI Endoscopy - Other | Facility | 149 | 149 | $125.13 | $19K |
| 43239 Upper GI Endoscopy | Facility | 128 | 128 | $67.19 | $8,600 |
| 99204 Office E&M - New | Office | 117 | 117 | $94.34 | $11K |
| 45385 Colonoscopy - Lesion Removal | Facility | 96 | 96 | $198.58 | $19K |
| 99214 Office E&M - Established | Office | 94 | 90 | $81.47 | $7,658 |
| G0105 Colorectal cancer screening; colonoscopy on individual at high risk | Facility | 92 | 92 | $170.84 | $16K |
| 43248 Upper GI Endoscopy | Facility | 66 | 66 | $108.38 | $7,153 |
| 99202 Office E&M - New | Office | 55 | 55 | $46.55 | $2,560 |
| G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | Facility | 29 | 29 | $163.60 | $4,744 |
| 45378 Lower GI Endoscopy - Other | Facility | 25 | 25 | $132.23 | $3,306 |
| 99232 Hospital E&M - Subsequent | Facility | 22 | 15 | $59.98 | $1,319 |
By year: 2022 $124K for 1,473 services; 2023 $134K for 1,469 services; 2024 $140K for 1,456 services.
Medicare prescription drug claims, 2024
In 2024, the drug Mark D Gulinson prescribed most often to Medicare patients was Pantoprazole Sodium, with 998 prescriptions and refills. In total Mark D Gulinson wrote 2,150 Medicare prescriptions that cost $876K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Pantoprazole Sodium Generic | 998 | 2,535 | 335 | $13K |
| Creon Lipase/Protease/Amylase | 105 | 130 | 21 | $262K |
| Dicyclomine Hcl Generic | 76 | 122 | 31 | $1,461 |
| Esomeprazole Magnesium Generic | 67 | 148 | 17 | $2,498 |
| Zenpep Lipase/Protease/Amylase | 64 | 98 | 16 | $205K |
| Omeprazole Generic | 54 | 158 | 21 | $1,059 |
| Sulfasalazine Generic | 52 | 126 | 15 | $3,017 |
| Budesonide Dr Budesonide | 42 | 62 | 17 | $5,468 |
| Famotidine Generic | 42 | 110 | 14 | $1,056 |
| Mesalamine Generic | 41 | 53 | Under 11 | $8,341 |
| Ursodiol Generic | 40 | 66 | Under 11 | $4,455 |
| Diphenoxylate-Atropine Diphenoxylate Hcl/Atropine | 39 | 42 | 14 | $905 |
| Ondansetron Odt Ondansetron | 36 | 36 | 17 | $378 |
| Metoclopramide Hcl Generic | 35 | 40 | Under 11 | $221 |
| Mesalamine Er Mesalamine | 33 | 79 | 13 | $11K |
Brand drugs: 353 claims; generic drugs: 1,797 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Mark D Gulinson $2,882 ($2,882 in general payments such as food, travel and fees) from 17 companies. The largest payer was Abbvie Inc. with $513.
| Company | Payments | Amount |
|---|---|---|
| Abbvie Inc. ABBV | 22 | $513 |
| Janssen Biotech, Inc. JNJ | 14 | $424 |
| Takeda Pharmaceuticals U.S.A., Inc. TAK | 11 | $322 |
| Genzyme Corporation SNY | 9 | $319 |
| Gilead Sciences, Inc. GILD | 9 | $235 |
| Madrigal Pharmaceuticals MDGL | 9 | $222 |
| Pfizer Inc. PFE | 6 | $158 |
| Phathom Pharmaceuticals, Inc. PHAT | 8 | $152 |
| Lilly USA, LLC LLY | 6 | $124 |
| Celltrion USA Inc. 068270.KS | 5 | $101 |
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.