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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. BOBBY TAY MD
NPI 1124065164
Orthopaedic Surgery in San Francisco, CA

Active since May 31, 2006PECOS Enrolled
400 PARNASSUS AVE, SAN FRANCISCO, CA 94143(414) 353-2739(415) 353-2248 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Bobby Tay Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. BOBBY TAY MD (NPI 1124065164) is an individual orthopaedic surgery provider in San Francisco, California, licensed in California (G80047) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (1993).

NPPES Registry Identity

NPI1124065164
Entity TypeIndividualMale
Primary Taxonomy207X00000X
Provider Legal NameDR. BOBBY TAYCredential: MD
Location Address400 PARNASSUS AVESan Francisco, CA 94143-2202
Mailing Address1635 Divisadero Street, Suite 625, Box 1821San Francisco, CA 94143-0001 · (415) 476-4029 · Fax (415) 476-4150
Phone(414) 353-2739
Fax(415) 353-2248
Sole ProprietorNo
Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 1993
Enumeration DateMay 31, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1124065164 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
License✔ Licensed in CA · G80047
Definition
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
400 PARNASSUS AVE, San Francisco, CA 94143
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Other Identifiers 1

Medicaid00G800470CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Bobby Tay Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4385727445
PECOS Enrollment IDI20080212000684
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
105 services86 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
98 services81 patients
Fusion of additional segment of spine 22614
Fusion of an additional segment of the spine is a surgical procedure to join two or more vertebrae together. This is done to stabilize the spine and reduce pain or correct a deformity. The procedure involves using bone grafts, rods, or screws to secure the spine.
54 services19 patients
Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment 63048
This procedure involves the partial removal of a bone in your spine to alleviate pressure on your spinal cord or nerves. It may be performed on multiple spine segments depending on your condition. The aim is to improve mobility and reduce pain or discomfort.
46 services30 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
41 services41 patients
Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment 63047
This procedure involves removing part of a spine bone to alleviate pressure on the lower spinal cord and/or nerves. It targets a single segment of the spine, improving mobility and reducing pain. It's a common treatment for conditions like herniated discs or spinal stenosis.
29 services28 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94143 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Osteogenesis stimulator, electrical, non-invasive, spinal applications E0748
DME-Other DME · category DE000N
1 supplier19 claims19 services$3,753.91 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ALEJANDRA GABRIELA DE ALBA CAMPOMANES MD, MPH
Ophthalmology
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-2560
DR. MARISSA A BOECK M.D.
Surgery (Surgical Critical Care)
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-2161
DR. JACQUELINE EVA WEINSTEIN M.D.
Otolaryngology (Pediatric Otolaryngology)
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1000
TIFFANY PONG ROSS PA-C
Physician Assistant
400 PARNASSUS AVE, 3RD FLOOR, SUITE 311
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-2739
SHINTARO TATEBE MSPT
Physical Therapist
400 PARNASSUS AVE, A-68
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-8574
DR. YVONNE W WU MD
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-2813
DR. DAVID S. BRADFORD MD
Orthopaedic Surgery
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-2739
DR. SANG-MO KANG MD
Surgery
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1551

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Bobby Tay's NPI number?

The NPI number for Bobby Tay is 1124065164. It was assigned to this individual provider in the NPPES registry on May 31, 2006.

Where is Bobby Tay located?

Bobby Tay practices at 400 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (414) 353-2739.

What is Bobby Tay's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is Bobby Tay enrolled in Medicare?

Yes. Bobby Tay is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Bobby Tay was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 29 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.