1. Home
  2. Directory
  3. California
  4. San Francisco
  5. Internal Medicine
  6. NPI Profile

PHYLLIS TIEN
NPI 1346358835
Internal Medicine - Infectious Disease in San Francisco, CA

Active since August 26, 2006PECOS Enrolled
4150 CLEMENT ST, INFECTIOUS DISEASES SECTION 111W, SAN FRANCISCO, CA 94121(415) 221-4810(415) 379-5523 Get Directions Write a Review

NPPES record last updated: July 17, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Phyllis Tien NPPES

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

PHYLLIS TIEN (NPI 1346358835) is an individual infectious disease provider in San Francisco, California, licensed in California (G077758) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1346358835
Entity TypeIndividualFemale
Primary Taxonomy207RI0200X
Provider Legal NamePHYLLIS TIEN
Location Address4150 CLEMENT ST, INFECTIOUS DISEASES SECTION 111WSan Francisco, CA 94121-1545
Mailing Address4150 Clement St, Infectious Diseases Section 111wSan Francisco, CA 94121-1545 · (415) 221-4810 · Fax (415) 379-5523
Phone(415) 221-4810
Fax(415) 379-5523
Sole ProprietorYes
Enumeration DateAugust 26, 2006
Last NPPES UpdateJuly 17, 2007
✔ NPI 1346358835 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in CA · G077758
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
4150 CLEMENT ST, San Francisco, CA 94121
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Phyllis Tien 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94121 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

MR. SHANNON KISSINGER MSW
Social Worker
4150 CLEMENT ST
SAN FRANCISCO, CA 94121
San Francisco County (415) 221-4848
MS. AYESHA DELANY-BRUMSEY M.A.
Student in an Organized Health Care Education/Training Program
4150 CLEMENT ST
SAN FRANCISCO, CA 94121
San Francisco County (415) 221-4810
DYLAN LEE PHARMD
Pharmacist
4150 CLEMENT ST
SAN FRANCISCO, CA 94121
San Francisco County (415) 221-4810
DR. PATRICK KWOCK ONG PHARM. D.
Pharmacist
4150 CLEMENT ST
SAN FRANCISCO, CA 94121
San Francisco County (415) 750-2054
MRS. MINDA MANUEL LAQUIAN RRT
Respiratory Therapist, Registered
4150 CLEMENT ST
SAN FRANCISCO, CA 94121
San Francisco County (415) 221-4810
SARAH CHOI N. P.
Nurse Practitioner (Family)
4150 CLEMENT ST
SAN FRANCISCO, CA 94121
San Francisco County (415) 221-4810
MRS. ANGELINA CAPUYAN MENDOZA MSW
Social Worker (Clinical)
4150 CLEMENT ST, SOCIAL WORK SERVICES-122
SAN FRANCISCO, CA 94121
San Francisco County (415) 221-4810
JANICE KAMAN LI PHARMD
Pharmacist
4150 CLEMENT ST, INPATIENT PHARMACY
SAN FRANCISCO, CA 94121
San Francisco County (415) 221-4810

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 Phyllis Tien's NPI number?

The NPI number for Phyllis Tien is 1346358835. It was assigned to this individual provider in the NPPES registry on August 26, 2006.

Where is Phyllis Tien located?

Phyllis Tien practices at 4150 Clement St Infectious Diseases Section 111W, San Francisco, CA 94121. The listed phone number is (415) 221-4810.

What is Phyllis Tien's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Phyllis Tien enrolled in Medicare?

Yes. Phyllis Tien is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Phyllis Tien was last updated on July 17, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.