Doctor profile · Federal record
Dr. Kalyanam Subramanyam, M.D.
Gastroenterology Physician · Webster, TX
- NPI 1164493870
- MIPS 21.3 / 100 · 2023
- 20 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1015 MED Center Blvd # 1300
Webster, TX 775984055
(281) 557-2527
fax (281) 557-7203
Credentials & registration
- NPI registered
- January 2006 — 20 yrs on file
- Profile last updated
- November 26, 2007
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Texas #F9035
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1164493870. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
757
Distinct HCPCS
10
Medicare allowed
$87,135
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 403 | 240 | $89 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 140 | 121 | $128 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 53 | 53 | $90 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 32 | 32 | $169 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 27 | 27 | $174 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 25 | 25 | $182 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 22 | 21 | $256 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 19 | 19 | $180 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 13 | 13 | $130 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 12 | 12 | $114 |
In context: peer comparison
Among 4 peers in Webster Gastroenterology Physician, average services per provider: 123. This provider delivers 6.2× the peer median.Open Payments
Industry payments received
All-time total
$1,442
Transactions
65
Manufacturers
14
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Takeda Pharmaceuticals U.S.A., INC. | 11 | $297.28 | |
| Abbvie INC. | 14 | $260.77 | |
| Ironwood Pharmaceuticals, INC | 6 | $123.96 | |
| Lilly USA, LLC | 5 | $120.52 | |
| Pfizer INC. | 4 | $100.05 | |
| Merck Sharp & Dohme LLC | 4 | $92.43 | |
| Gilead Sciences, INC. | 5 | $90.37 | |
| Phathom Pharmaceuticals, INC. | 3 | $84.06 | |
| Celgene Corporation | 4 | $77.14 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 4 | $76.09 | |
| Ipsen Biopharmaceuticals, INC | 2 | $53.41 | |
| Braintree Laboratories, INC. | 1 | $26.59 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 1 | $21.97 | |
| Intercept Pharmaceuticals, INC. | 1 | $17.04 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,201
Patients
627
Total drug cost
$95,207
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 249 | 89 | $5,797 |
| Omeprazole | Generic | 233 | 100 | $3,921 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 205 | 204 | $3,144 |
| Dicyclomine Hcl | Generic | 168 | 76 | $5,616 |
| Esomeprazole Magnesium | Generic | 52 | 18 | $8,882 |
| Famotidine | Generic | 45 | 19 | $895 |
| Linzess (Linaclotide) | Brand | 45 | 20 | $41,318 |
| Peg-3350 and Electrolytes (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 35 | 35 | $562 |
| Loperamide (Loperamide Hcl) | Brand | 34 | 17 | $1,178 |
| Diphenoxylate-Atropine (Diphenoxylate Hcl/Atropine) | Brand | 31 | 15 | $1,645 |
Frequently asked questions
What is Dr. Kalyanam Subramanyam's medical specialty?
Dr. Kalyanam Subramanyam practices Gastroenterology Physician in Webster, TX.
Where does Dr. Kalyanam Subramanyam practice?
Dr. Kalyanam Subramanyam practices at 1015 MED Center Blvd # 1300, Webster, TX 775984055. Office phone: 2815572527.
What is Dr. Kalyanam Subramanyam's NPI?
Dr. Kalyanam Subramanyam's National Provider Identifier (NPI) is 1164493870, issued by NPPES.
What procedures does Dr. Kalyanam Subramanyam 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 esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.