TIANYI ZHANG
NPI 1578096285
Psychiatry & Neurology - Psychiatry in San Francisco, CA

Active since April 10, 2017PECOS Enrolled
74.46/100
CMS Quality Rating
675 18TH ST, SAN FRANCISCO, CA 94143(415) 476-7000 Get Directions Write a Review

NPPES record last updated: October 10, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 10, 2022, Jun 10, 2019, Nov 8, 2018 and 1 more (4 updates tracked since 2017).

About Tianyi Zhang NPPES

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

TIANYI ZHANG (NPI 1578096285) is an individual psychiatry provider in San Francisco, California, licensed in California (A157568) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1578096285
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameTIANYI ZHANG
Location Address675 18TH STSan Francisco, CA 94143-3136
Mailing Address401 Parnassus Ave, Box-0984San Francisco, CA 94143-2211
Sole ProprietorNo
Enumeration DateApril 10, 2017
Last NPPES UpdateOctober 10, 20224 updates tracked since enumeration
NPPES CertifiedOctober 10, 2022
✔ NPI 1578096285 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · A157568
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
675 18TH ST, San Francisco, CA 94143

Other Names 1

Professional Name (2)Tianyi Zhang Oxnard

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Tianyi Zhang is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignments

2

Medicare enrollment records show Tianyi Zhang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Surgery
400 PARNASSUS AVE, MCB 300
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 5,645 clinicians in this Medicare group
Internal Medicine
400 PARNASSUS AVE
San Francisco, CA 94122
  • Reassigned Medicare billing, California enrollment
  • 5,544 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

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.
169 services84 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
$202.35 typical visit price
range $69.00 – $202.35
Typical copayment $50.58 (range $17.25 – $50.58)
Most-billed visit code 99205
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

74.46/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Promoting Interoperability76
Improvement Activities40
Cost46.68

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.

Student in an Organized Health Care Education/Training Program
675 18TH ST
SAN FRANCISCO, CA 94143
Psychiatry & Neurology (Psychiatry)
675 18TH ST
SAN FRANCISCO, CA 94143
Psychiatry & Neurology (Psychiatry)
675 18TH ST
SAN FRANCISCO, CA 94143
Social Worker
675 18TH ST
SAN FRANCISCO, CA 94143
Psychiatry & Neurology (Psychiatry)
675 18TH ST
SAN FRANCISCO, CA 94143
Student in an Organized Health Care Education/Training Program
675 18TH ST
SAN FRANCISCO, CA 94143
Psychologist (Clinical Child & Adolescent)
675 18TH ST
SAN FRANCISCO, CA 94143
Psychiatry & Neurology (Psychiatry)
675 18TH ST
SAN FRANCISCO, CA 94143

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 Tianyi Zhang's NPI number?

The NPI number for Tianyi Zhang is 1578096285. It was assigned to this individual provider in the NPPES registry on April 10, 2017. The provider is also known as Tianyi Zhang Oxnard.

Where is Tianyi Zhang located?

Tianyi Zhang practices at 675 18th St, San Francisco, CA 94143. The listed phone number is (415) 476-7000.

What is Tianyi Zhang's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Tianyi Zhang enrolled in Medicare?

Yes. Tianyi Zhang is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Tianyi Zhang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tianyi Zhang reassigns Medicare benefits to 2 organizations: University Of California San Francisco (San Francisco, CA) and Ucsf Medical Group Business Services (San Francisco, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Tianyi Zhang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Tianyi Zhang was last updated on October 10, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.