Doctor profile · Federal record
Dr. Mark Tanker, D.O.
Gastroenterology Physician · Philadelphia, PA
- NPI 1831137538
- 20 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
700 Cottman Ave, Suite 201
Philadelphia, PA 191113062
(215) 742-9900
fax (215) 742-7051
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- July 8, 2007
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Pennsylvania #OS004028L
- Medicaid
- PA #000859825/0002
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1831137538. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
200
Distinct HCPCS
8
Medicare allowed
$27,777
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 51 | 47 | $94 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 47 | 47 | $131 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 26 | 26 | $140 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 20 | 20 | $128 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 18 | 18 | $260 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 14 | 14 | $162 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 12 | 12 | $117 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 12 | 11 | $189 |
In context: peer comparison
Among 80 peers in this city , average services per provider: 80. This provider delivers 2.5× the peer median.Open Payments
Industry payments received
All-time total
$107
Transactions
5
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ABBVIE INC. | 2 | $38.30 | |
| Phathom Pharmaceuticals, Inc. | 1 | $27.58 | |
| Intercept Pharmaceuticals, Inc. | 1 | $23.79 | |
| Gilead Sciences, Inc. | 1 | $17.75 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
404
Patients
124
Total drug cost
$394,538
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 123 | 43 | $1,476 |
| Famotidine | Generic | 88 | 32 | $827 |
| Pantoprazole Sodium | Generic | 46 | 21 | $794 |
| Mesalamine | Generic | 38 | 13 | $36,836 |
| Esomeprazole Magnesium | Generic | 24 | 0 | $844 |
| Pentasa (Mesalamine) | Brand | 22 | 0 | $29,328 |
| Linzess (Linaclotide) | Brand | 21 | 0 | $19,727 |
| Lansoprazole | Generic | 16 | 0 | $266 |
| Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 15 | 15 | $200 |
| Stelara (Ustekinumab) | Brand | 11 | 0 | $304,240 |
Frequently asked questions
What is Dr. Mark Tanker's medical specialty?
Dr. Mark Tanker practices Gastroenterology Physician in Philadelphia, PA.
Where does Dr. Mark Tanker practice?
Dr. Mark Tanker practices at 700 Cottman Ave, Philadelphia, PA 191113062. Office phone: 2157429900.
What is Dr. Mark Tanker's NPI?
Dr. Mark Tanker's National Provider Identifier (NPI) is 1831137538, issued by NPPES.
What procedures does Dr. Mark Tanker commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Biopsy of large bowel using a flexible endoscope (HCPCS 45380). Source: CMS Medicare Physician & Other Practitioners file.