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Edit this profileAt a glance
- 400 Parnassus Ave, San Francisco, CA 94143
About Dr. Tay
Bobby Tay, MD practices orthopaedic surgery in San Francisco, CA. Bobby is a 1993 graduate of University of California, San Francisco School of Medicine. According to Medicare claims data, Bobby cared for 356 Medicare patients across 445 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and fusion of additional segment of spine. The provider's National Provider Identifier (NPI) is 1124065164.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (414) 353-2739
- Email not available
Practice Locations
400 PARNASSUS AVE
San Francisco, CA 94143
Conditions Commonly Evaluated or Treated
Within Orthopedic Surgery generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Elbow, hand, and wrist
Foot and ankle
Hip
Shoulder
Sports and soft tissue
Trauma and bone
Foot & Ankle
Spine
Procedures & services
Most searched procedures
Evaluation and nonsurgical
Arthroscopy
Foot & Ankle
Foot and ankle
Hand & Wrist
Hand and upper extremity
Injections & Non-Surgical
Injections & pain relief
Joint replacement
- Partial knee replacement
- Reverse shoulder replacement
- Revision joint replacement
- Shoulder replacement
Knee
Shoulder surgery
Trauma & Fractures
Trauma and fixation
Procedures Most Often Billed to Medicare
445 services · 356 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Fusion of additional segment of spine | Procedure | 22614 |
54 | As often as other peers in Orthopaedic Surgery |
| Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment | Procedure | 63048 |
46 | More often than most peers in Orthopaedic Surgery |
| Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment | Procedure | 63047 |
29 | More often than most peers in Orthopaedic Surgery |
| Computer-assisted spinal procedure | Procedure | 61783 |
22 | More often than most peers in Orthopaedic Surgery |
| Placement of stabilizing device to back, 3-6 spine bone segments | Procedure | 22842 |
17 | As often as other peers in Orthopaedic Surgery |
| Fusion of spine in lower back | Procedure | 22612 |
15 | As often as other peers in Orthopaedic Surgery |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
105 | As often as other peers in Orthopaedic Surgery |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
98 | As often as other peers in Orthopaedic Surgery |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
41 | As often as other peers in Orthopaedic Surgery |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
18 | Less often than most peers in Orthopaedic Surgery |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other orthopaedic surgeons at this location 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 30 related providers in 4 groups
Other orthopaedic surgeons in San Francisco 7
Same specialty, same city.
Trained at University of California, San Francisco School of Medicine 7
Other providers in the same specialty who trained at the same institution.
Class of 1993 at University of California, San Francisco School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Fusion of additional segment of spine 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Dr. Tay's specialty?
Dr. Tay is an orthopaedic surgeon in San Francisco, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Orthopaedic Surgery”.
NPI registry
Where can I find Dr. Tay?
Dr. Tay is listed at 400 Parnassus Ave, San Francisco, CA 94143. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Tay?
The number on file is (414) 353-2739. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Tay's NPI number?
Dr. Tay's National Provider Identifier is 1124065164. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Tay's medical education?
Dr. Tay attended University of California, San Francisco School of Medicine, graduating in 1993. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Tay been practicing?
Dr. Tay has 33 years experience. Calculated from a graduation year of 1993, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Tay known for?
According to Medicare billing data, Dr. Tay performs procedures including fusion of additional segment of spine, partial removal of spine bone with release of spinal cord and/or nerves, each additional segment and partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Tay confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Tay. If this is you, claiming it is free.
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