What is Tiffany Sia's background?

Dr. Sia graduated from Columbia University College of Physicians and Surgeons in 2017 and has over 9 years in obstetrics & gynecology. Works within a group practice.

Does Tiffany Sia accept Medicare?

CMS records show Dr. Sia is Medicare enrolled. Contact the office to confirm current acceptance and to ask about other coverage.

How do I reach Tiffany Sia's office?

910 Campisi Way Ste 2a, Campbell, CA 95008. Phone: (408) 827-4274. Virtual visits are also available for patients who prefer remote care.

How does a virtual visit with Dr. Sia work?

Dr. Sia's office sends a secure video link before your appointment. Join from any device with a camera — phone, tablet, or laptop. Most visits run 15–30 minutes. See the telehealth section above for what to have ready.

What is Tiffany Sia's NPI number?

Dr. Sia's National Provider Identifier (NPI) is 1760915912. NPI numbers are issued by CMS through the National Plan and Provider Enumeration System (NPPES). You can verify the registry record yourself using the link in the "NPI Verification" section above.

Tiffany Sia, M.D.

Gynecologic Oncology Obstetrics & Gynecology

Obstetrics & Gynecology

(408) 827-4274Campbell, CA

Telehealth Available

NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Telehealth Available NPI Active per CMS — Q2 2026 Medicare Enrolled Can Order & Refer

Tiffany Sia, M.D. specializes in obstetrics & gynecology, serving patients in Campbell, CA in group practice. A Columbia University College of Physicians and Surgeons graduate since 2017, she brings 9+ years of experience. An obstetrician/gynecologist who provides consultation and comprehensive management of patients with gynecologic cancer.

1 of 79 Obstetrics & Gynecology providers in CASee all Obstetrics & Gynecology in Campbell|9+ years experience|NPI since 2017

Older · 273dNPPES updated 2025-08-06 · verify on CMS

Contact & Location

Practice Location

910 Campisi Way Ste 2a, Campbell, CA 95008-2351

(408) 827-4274

CMS Clinical Data

How Does This Doctor Compare?

Opioid Rx

↓ Lower = better

22.22%

California avg: 5.2 · US avg: 5.1

⚠ Lower than most doctors nationally(+17.1 pts)

22.22% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.

Prescription Recipients

Patients prescribed

Prescriptions Written

Total claims

Total Medicare drug cost: $1k

Percentile rankings compared against 9,360 reporting peers in California.

Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.

Industry Payment Transparency

$109 received from industry

1 transaction reported in 2024 ·Low tier

View on CMS Open Payments →

Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.

Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Tiffany Sia's NPI.

Patient Reviews

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey

Graduated medical school · 2017
Columbia University Vagelos College of Physicians and Surgeons
Board certified · Jul 14, 2025
CMS-verified certification date
9 years in practice
Established

Obstetrics & Gynecology Gynecologic Oncology in CampbellAllopathic & Osteopathic Physicians

An obstetrician/gynecologist who provides consultation and comprehensive management of patients with gynecologic cancer, including those diagnostic and therapeutic procedures necessary for the total care of the patient with gynecologic cancer and resulting complications.

Taxonomy: 207VX0201X

Education & Training

Columbia University College of Physicians and Surgeons (Class of 2017)

Practice Footprint

Primary hospital affiliation: Psychiatric

CMS Certification Number: 194115

View hospital on Medicare Care Compare

Virtual Gynecologic Oncology Care With Tiffany Sia

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Tiffany Sia for follow-ups, medication reviews, and ongoing care — no travel to Campbell required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.

Frequently Asked Questions

Common questions about Tiffany Sia

NPI records show Dr. Sia as active with telehealth listed in Campbell, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (408) 827-4274.

Verified across 4 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024. See Data Methodology.

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