Medicare Enrolled
Dr. Vivaik Tyagi, M.D.
Gastroenterology · Lancaster, CA
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Speaking/Promotional
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Tyagi from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Tyagi
Dr. Vivaik Tyagi is a gastroenterology specialist in Lancaster, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Tyagi performed 3,148 Medicare services across 2,404 unique beneficiaries.
Between the years covered by Open Payments, Dr. Tyagi received a total of $31,562 from 43 pharmaceutical and/or device companies across 457 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in gastroenterology. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Tyagi is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 19 years in practice
▲ Top 4% volume in CA
$31,562 industry payments
Medicare Practice Summary
Medicare Utilization ↗3,148
Medicare services
Top 4% in CA for gastroenterology
2,404
Unique beneficiaries
$96
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~166 Medicare services per year of practice
Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
1,113 | $90 | $242 |
| Upper GI endoscopy with biopsy A procedure to collect tissue samples from the esophagus, stomach, or upper small intestine using a flexible tube with a camera. The samples are examined to check for abnormalities. |
455 | $50 | $310 |
| Colon polyp removal with endoscopic snare This procedure removes polyps or growths from the large bowel using a flexible tube with a camera and a wire loop tool. The snare is used to cut off the growths during the examination. |
278 | $206 | $568 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
252 | $122 | $363 |
| Colonoscopy with biopsy A procedure to collect tissue samples from the large intestine using a flexible tube with a camera. The samples are examined to check for abnormalities or disease. |
208 | $43 | $448 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
160 | $99 | $225 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
150 | $59 | $166 |
| Balloon dilation of esophagus, stomach, or upper small bowel, less than 3.0 cm A procedure using a flexible endoscope to widen a narrowed section of the esophagus, stomach, or upper small bowel with a balloon that is less than 3.0 cm in length. |
116 | $96 | $343 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
85 | $63 | $158 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
77 | $142 | $438 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
60 | $104 | $296 |
| Endoscopic control of upper GI bleeding A flexible endoscope is used to locate and stop bleeding in the esophagus, stomach, or upper small intestine. |
37 | $155 | $449 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
28 | $139 | $323 |
| Liver stiffness measurement A non-invasive test that uses ultrasound or similar technology to measure the stiffness of liver tissue. This measurement helps assess the degree of liver fibrosis or scarring. |
26 | $27 | $85 |
| New patient office visit, complex (60-74 min) | 20 | $172 | $455 |
| Endoscopic ligation of esophageal or gastric varices A procedure using a flexible endoscope to tie off dilated veins in the stomach or esophagus. |
19 | $191 | $548 |
| Colonoscopy A diagnostic exam of the large bowel using a flexible endoscope to visualize the interior of the colon. |
18 | $131 | $412 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
18 | $58 | $241 |
| Endoscopic removal of esophagus, stomach, or small bowel polyps This procedure uses an endoscope and a mechanical snare to remove polyps or growths from the esophagus, stomach, or upper small bowel. |
17 | $132 | $438 |
| Colonoscopy for colorectal cancer screening, high risk A colonoscopy performed to screen for colorectal cancer in individuals identified as being at high risk for the disease. |
11 | $181 | $412 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
Industry Payment Transparency
Open Payments through 2024 ↗$31,562
Total received (2018-2024)
Avg $4,509/year across 7 years
Top 9% in CA for gastroenterology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
43
Companies
457
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$22,782 (72.2%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$8,780 (27.8%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$7,930
2023
$14,474
2022
$1,343
2021
$1,170
2020
$548
2019
$1,341
2018
$4,756
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Gilead Sciences, Inc.
$6,392
ABBVIE INC.
$508
Janssen Biotech, Inc.
$290
Tempus AI, Inc
$166
Phathom Pharmaceuticals, Inc.
$153
Takeda Pharmaceuticals U.S.A., Inc.
$103
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$77
Celgene Corporation
$62
GENZYME CORPORATION
$58
QOL Medical, LLC
$31
Regeneron Healthcare Solutions, Inc.
$26
PFIZER INC.
$23
Merck Sharp & Dohme LLC
$23
RedHill Biopharma Inc.
$18
Top 3 companies account for 90.7% of 2024 payments
All-time payments by company (2018-2024) ›
Gilead Sciences, Inc.
$17,227
Allergan Inc.
$3,467
NESTLE HEALTHCARE NUTRITION INC.
$2,141
ABBVIE INC.
$1,050
AbbVie Inc.
$780
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$772
Janssen Biotech, Inc.
$763
AbbVie, Inc.
$745
Takeda Pharmaceuticals U.S.A., Inc.
$655
Ironwood Pharmaceuticals, Inc
$424
Boston Scientific Corporation
$362
Endogastric Solutions, Inc
$347
E.R. Squibb & Sons, L.L.C.
$267
GENZYME CORPORATION
$247
PFIZER INC.
$240
Synergy Pharmaceuticals Inc
$174
Tempus AI, Inc
$166
Phathom Pharmaceuticals, Inc.
$153
Celgene Corporation
$137
Intercept Pharmaceuticals, Inc.
$125
AstraZeneca Pharmaceuticals LP
$114
Olympus America Inc.
$112
Shionogi Inc
$102
Dova Pharmaceuticals
$97
Merck Sharp & Dohme Corporation
$96
Regeneron Healthcare Solutions, Inc.
$94
Merck Sharp & Dohme LLC
$86
IRONWOOD PHARMACEUTICALS, INC
$84
Ardelyx, Inc.
$82
Braintree Laboratories, Inc.
$76
RedHill Biopharma Inc.
$70
Evoke Pharma, Inc.
$60
Echosens North America, Inc.
$36
QOL Medical, LLC
$31
Covidien LP
$26
EVOKE PHARMA, INC.
$23
Daiichi Sankyo Inc.
$22
Shire North American Group Inc
$21
Pinnacle Biologics, Inc
$21
Nestle HealthCare Nutrition Inc.
$18
INTERCEPT PHARMACEUTICALS, INC.
$17
Ferring Pharmaceuticals Inc.
$15
Alfasigma USA, Inc.
$14
Top 3 companies account for 72.4% of all-time payments
Associated products mentioned in payments ›
APRISO · Amitiza · Axios · CIMZIA · CREON · Creon · DIFICID · DUPIXENT · Dexilant · Doptelet · ENTYVIO · ESOPHYX · EXALT Model D · Epclusa · FibroScan · GATTEX · GENERAL BILIARY DEVICES · GIMOTI · HUMIRA · Humira · IBSRELA · INFLECTRA · INJECTAFER · LINZESS · Linzess · MAVYRET · MOTEGRITY · MOVANTIK · Mavyret · Motegrity · Movantik · Mulpleta · OCALIVA · Olympus EMR & ESD Devices · Photofrin · RELISTOR · REMICADE · RINVOQ · Resolution Clip · SKYRIZI · STELARA · SUCRAID · SUPREP BOWEL PREP · Smart Pill · SpyGlass · Symproic · TREMFYA · TRULANCE · Talicia · Trulance · UCERIS TABLETS · VIBERZI · VOQUEZNA · Vemlidy · XELJANZ · XIFAXAN · ZENPEP · ZEPATIER · ZEPOSIA
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
The majority of payments (72%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in gastroenterology and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 9% for gastroenterology in CA.
Geographic Context
Gastroenterologists within 10 mi
11
Per 100K population
0.1
County median income
$87,760
Nearest hospital
ANTELOPE VALLEY HOSPITAL
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Tyagi is a clinical cardiology specialist, with above-average Medicare volume (top 4% in CA), with speaking/promotional industry engagement in the top 9% of CA peers, with 19 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Tyagi experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Tyagi performed 1,113 office visit, established patient (30-39 min) services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Tyagi receive payments from pharmaceutical companies?
Yes. Dr. Tyagi received a total of $31,562 from 43 companies across 457 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Tyagi's costs compare to other gastroenterologists in Lancaster?
Dr. Tyagi's average Medicare payment per service is $96. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Tyagi) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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