Doctor profile · Federal record
Dr. Shannon Tosounian, D.O.
Gastroenterology Physician (CMS: Gastroenterology) · Center Valley, PA
- NPI 1013398734
- Accepts Medicare
- MIPS 90.3 / 100 · 2023
- 11 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
5405 Saucon Creek RD, Suite 200
Center Valley, PA 180343018
(484) 526-6545 - Mailing address
-
4505 Saucon Creek RD
Center Valley, PA 180348481
Credentials & registration
- NPI registered
- June 2015 — 11 yrs on file
- Profile last updated
- September 12, 2025
- Year of graduation
- 2015 — 11 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Pennsylvania #OS021519
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1013398734. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
426
Distinct HCPCS
10
Medicare allowed
$54,019
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 100 | 75 | $122 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 77 | 52 | $76 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 54 | 52 | $101 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 43 | 40 | $125 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 32 | 32 | $152 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 28 | 26 | $169 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 28 | 28 | $244 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 24 | 24 | $167 | |
91122 |
Study of rectum sensitivity and function | 15 | 15 | $84 | |
91110 |
Imaging of digestive tract done from the inside of the digestive tract | 14 | 13 | $107 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 33. This provider delivers 13× the peer median.Open Payments
Industry payments received
All-time total
$125
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Phathom Pharmaceuticals, Inc. | 1 | $124.74 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
254
Patients
111
Total drug cost
$17,251
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 79 | 23 | $1,556 |
| Omeprazole | Generic | 64 | 29 | $1,184 |
| Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 43 | 43 | $769 |
| Dicyclomine Hcl | Generic | 22 | 16 | $393 |
| Famotidine | Generic | 18 | 0 | $260 |
| Linzess (Linaclotide) | Brand | 15 | 0 | $11,309 |
| Sucralfate | Generic | 13 | 0 | $1,781 |
Hospital affiliations
Frequently asked questions
What is Dr. Shannon Tosounian's medical specialty?
Dr. Shannon Tosounian practices Gastroenterology Physician in Center Valley, PA.
Where does Dr. Shannon Tosounian practice?
Dr. Shannon Tosounian practices at 5405 Saucon Creek RD, Center Valley, PA 180343018. Office phone: 4845266545.
What is Dr. Shannon Tosounian's NPI?
Dr. Shannon Tosounian's National Provider Identifier (NPI) is 1013398734, issued by NPPES.
Does Dr. Shannon Tosounian accept Medicare assignment?
Yes. Dr. Shannon Tosounian accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Shannon Tosounian commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.