Medicare Enrolled

Dr. Bobby Tay, MD

Orthopedic Surgery · San Francisco, CA
Practice pattern: Mixed Practice — Diverse clinical practice across multiple procedure types
Mixed engagement
400 PARNASSUS AVE, San Francisco, CA 94143
4143532739
In practice since 2006 (19 years)
NPI: 1124065164 verify on NPPES ↗
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. Tay 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. Tay

Dr. Bobby Tay is an orthopedic surgery specialist in San Francisco, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Tay performed 86 Medicare services across 68 unique beneficiaries.

Between the years covered by Open Payments, Dr. Tay received a total of $51,356 from 27 pharmaceutical and/or device companies across 166 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in orthopedic surgery. The majority of payments are classified as financial or ownership interests (royalties, licensing fees, or investment interests). Patients may wish to discuss these relationships with their provider.

The Data Coverage level for Dr. Tay 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 ▲ 86 Medicare services $51,356 industry payments

Medicare Practice Summary

Medicare Utilization ↗
86
Medicare services
Bottom 9% in CA for orthopedic surgery
Lower Medicare volume may reflect subspecialty focus, hospital-based work, or a higher share of non-Medicare patients.
68
Unique beneficiaries
$335
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~5 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
Partial removal of spine bone with nerve release, each additional segment
This procedure involves the partial removal of spinal bone to relieve pressure on the spinal cord or nerves. It is billed for each additional spinal segment treated beyond the initial segment.
 36 $178 $1,080
Partial removal of spine bone with nerve release, 1 segment
A surgical procedure involving the partial removal of a bone segment in the spine to relieve pressure on the spinal cord or nerves. This is performed on a single spinal segment.
 23 $819 $5,913
Graft of donor bone to spine 16 $93 $569
Computer-assisted spinal procedure
A surgical or diagnostic procedure involving the spine that utilizes computer technology to assist with planning, navigation, or execution.
 11 $193 $1,216
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 ↗
$51,356
Total received (2018-2024)
Avg $7,337/year across 7 years
Top 13% in CA for orthopedic surgery
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
27
Companies
166
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.

Financial / Ownership
Ownership or investment interests, royalties, and licensing fees
$35,664 (69.4%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$11,454 (22.3%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$2,908 (5.7%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$1,330 (2.6%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$2,034
2023
$2,479
2022
$2,159
2021
$1,495
2020
$3,843
2019
$16,725
2018
$22,622

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
Medtronic, Inc.
$858
Spineology Inc.
$460
Carlsmed, Inc.
$189
SI-BONE, INC.
$111
Centinel Spine, LLC
$94
INTUITIVE SURGICAL, INC.
$92
Bioventus LLC
$89
SPINEART USA INC
$82
Globus Medical, Inc.
$59
Top 3 companies account for 74.1% of 2024 payments
All-time payments by company (2018-2024) ›
Stryker Corporation
$35,877
NuVasive, Inc.
$4,698
Medtronic, Inc.
$2,275
Cerapedics, Inc.
$1,633
Synthes GmbH
$1,275
SPINEART USA INC
$680
Spineart USA Inc
$602
Centinel Spine, LLC
$559
Zimmer Biomet Holdings, Inc.
$539
Spineology Inc.
$460
Abbott Laboratories
$324
Alphatec Spine, Inc
$267
Medtronic USA, Inc.
$259
SI-BONE, INC.
$251
DePuy Synthes Sales Inc.
$236
Globus Medical, Inc.
$219
Sanara MedTech Inc.
$191
Carlsmed, Inc.
$189
ZIMVIE INC.
$174
Wright Medical Technology, Inc.
$110
Baylis Medical Company Inc
$109
INTUITIVE SURGICAL, INC.
$92
Bioventus LLC
$89
SI-BONE, Inc.
$87
icotec Medical Inc.
$71
Ethicon US, LLC
$61
Integrity Implants Inc.
$31
Top 3 companies account for 83.4% of all-time payments
Associated products mentioned in payments ›
ACP · ALIF · ANCHOR C · ANCHOR L · ANTERALIGN SPINAL SYSTEM WITH TITAN NANOLOCK SURFACE TECHNOLOGY · Actishield · Aspida · AttraX · BAGUERA C · BONESCALPEL & SONICONE (O.R.) · C360 · CATALYFT PL EXPANDABLE INTERBODY SYSTEM · CD HORIZON SPINAL SYSTEM · CURE ACP · CellerateRx · CoRoent · Connected Health-MyMobility · DIVERGENCE-L · Da Vinci Surgical System · ESCALATE · EVEREST XT · Enclave Alif Spacer · Excelsius Robotics System · Excelsius3D Imaging System · FormaGraft · Fulfill Graft Containment · GIZA · GRAFTONAND GRAFTON PLUSDEMINERALIZED BONE MATRIX (DBM) · INFINITY OCCIPITOCERVICAL UPPER THORACIC SYSTEM · INFINITY OCT System · Leverage · MAZOR X SYSTEM · MIDLINE II · Maxan Cervical System · Mazor X Stealth Edition · MazorX - Renaissance · Mobi-C · NRG needle · O-ARM · OPTIMESH EXPANDABLE INTERBODY FUSION SYSTEM · Osteocel · PERLA C · PERLA TL · PRODISC C · PRODISC C VIVO · Perla TL · Proclaim Family of SCS IPGs · Propel · Pulse · RELINE · ROMEO 2 · SANTORINI · SCARLET AL-T · SURGICEL Family of Absorbable Hemostats · SYMPHONY · Simplify Cervical Artificial Disc · TLIF · TRITANIUM · Triad · UNID_PASS · Virage · Vital · XLIF · YUKON · aprevo · i-FACTOR Putty · icotec BlackArmor Spine System
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 →

Payments are distributed across multiple categories with no single dominant type.

Looking for an orthopedic surgery specialist in San Francisco?
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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. Tay is a mixed practice specialist, with moderate Medicare volume, with mixed engagement industry engagement in the top 13% 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. Tay experienced with partial removal of spine bone with nerve release, each additional segment?
Based on Medicare claims data, Dr. Tay performed 36 partial removal of spine bone with nerve release, each additional segment 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. Tay receive payments from pharmaceutical companies?
Yes. Dr. Tay received a total of $51,356 from 27 companies across 166 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. Tay's costs compare to other orthopedic surgeons in San Francisco?
Dr. Tay's average Medicare payment per service is $335. 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. Tay) 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.

Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Payments from industry are legal and do not indicate wrongdoing. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →