Doctor profile · Federal record
Dr. Nandakumar Srinivasan, MD
Gastroenterology Physician (CMS: Gastroenterology) · Gastroenterology Physician · Internal Medicine Physician · Gastroenterology Physician · Seattle, WA
- NPI 1235270927
- Accepts Medicare
- 26 yrs in practice
- Licensed in 3 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1100 9Th Ave, MS:C3-Gas
Seattle, WA 981012756
(206) 223-2319
fax (206) 341-1188
Credentials & registration
- NPI registered
- February 2007 — 19 yrs on file
- Profile last updated
- July 16, 2013
- Year of graduation
- 2000 — 26 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (4)
- Washington #MD60349184 · Minnesota #104821 · Oklahoma #24986 · Minnesota #53201
- Medicaid (2)
- WA #1235270927 · MN #ENROLLED
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1235270927. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
483
Distinct HCPCS
9
Medicare allowed
$65,329
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 142 | 142 | $236 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 130 | 130 | $72 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 93 | 91 | $74 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 28 | 20 | $123 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 28 | 27 | $159 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 18 | 18 | $172 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 16 | 16 | $173 | |
45381 |
Injection beneath lining of large bowel using a flexible endoscope | 15 | 15 | $15 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 13 | 13 | $124 |
In context: peer comparison
Among 44 peers in this city , average services per provider: 39. This provider delivers 12× the peer median.Open Payments
Industry payments received
All-time total
$23
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Boston Scientific Corporation | 1 | $22.69 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
903
Patients
689
Total drug cost
$60,701
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 467 | 450 | $13,525 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,mag Sulfates) | Brand | 87 | 85 | $6,682 |
| Pantoprazole Sodium | Generic | 58 | 33 | $853 |
| Omeprazole | Generic | 54 | 30 | $1,075 |
| Sutab (Sod Sulf/Pot Chloride/Mag Sulf) | Brand | 48 | 46 | $8,069 |
| Famotidine | Generic | 36 | 0 | $619 |
| Ursodiol | Generic | 34 | 0 | $4,717 |
| Suprep (Sodium, Potassium,mag Sulfates) | Brand | 29 | 29 | $3,208 |
| Nadolol | Generic | 23 | 0 | $2,214 |
| Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 16 | 16 | $330 |
Hospital affiliations
Frequently asked questions
What is Dr. Nandakumar Srinivasan's medical specialty?
Dr. Nandakumar Srinivasan practices Gastroenterology Physician in Seattle, WA.
Where does Dr. Nandakumar Srinivasan practice?
Dr. Nandakumar Srinivasan practices at 1100 9Th Ave, Seattle, WA 981012756. Office phone: 2062232319.
What is Dr. Nandakumar Srinivasan's NPI?
Dr. Nandakumar Srinivasan's National Provider Identifier (NPI) is 1235270927, issued by NPPES.
Does Dr. Nandakumar Srinivasan accept Medicare assignment?
Yes. Dr. Nandakumar Srinivasan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nandakumar Srinivasan commonly perform?
Top Medicare-reported procedures in 2023: Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.