MS. KATIE TERESE LIANG NP
NPI 1821519810
Nurse Practitioner - Family in San Francisco, CA

Q: What is Katie Liang's NPI number?

The NPI number for Katie Liang is 1821519810. It was assigned to this individual provider in the NPPES registry on June 29, 2017. The provider is also known as Katie Ahmann.

Q: What is Katie Liang's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Q: When was this NPI record last updated?

The NPPES record for Katie Liang was last updated on December 6, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 months 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.

Active since June 29, 2017PECOS EnrolledAccepts Medicare Assignment

199 W PORTAL AVE, SAN FRANCISCO, CA 94127(707) 377-1005 Get Directions Write a Review

NPPES record last updated: December 6, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 6, 2024, Jul 27, 2022, Feb 10, 2021 and 1 more (4 updates tracked since 2017).

On this page

About Ms. Katie Terese Liang Np NPPES

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

MS. KATIE TERESE LIANG NP (NPI 1821519810) is an individual family provider in San Francisco, California, licensed in California (95008335) and active in the NPI registry since June 2017. She is enrolled in Medicare PECOS and is a graduate of Other (2017).

NPPES Registry Identity

NPI1821519810

Entity TypeIndividualFemale

Primary Taxonomy363LF0000X

Provider Legal NameMS. KATIE TERESE LIANGCredential: NP

Location Address199 W PORTAL AVESan Francisco, CA 94127-1305

Mailing Address199 W Portal AveSan Francisco, CA 94127-1305

Phone(707) 377-1005

Sole ProprietorNo

Medical School CMSOtherGraduated 2017

Enumeration DateJune 29, 2017

Last NPPES UpdateDecember 6, 20244 updates tracked since enumeration

NPPES CertifiedDecember 6, 2024

✔ NPI 1821519810 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

License✔ Licensed in CA · 95008335

199 W PORTAL AVE, San Francisco, CA 94127

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Other Names 1

Former Name (1)Katie Ahmann

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ms. Katie Terese Liang Np 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 ID8729464011

PECOS Enrollment IDI20221011001273

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

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

Ucsf Health Medical Foundation

13 mi

Multi-Specialty

747 52ND ST
Oakland, CA 94609

Reassigned Medicare billing, California enrollment
118 clinicians in this Medicare group

NPI 1922124866 (415) 476-4424

Carbon Health Medical Group Of California PC

14 mi

Urgent Care

2920 TELEGRAPH AVE
Berkeley, CA 94705

Reassigned Medicare billing, California enrollment
241 clinicians in this Medicare group

NPI 1417294232 (510) 686-3621

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 5

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 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.

37 services35 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

35 services35 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.

22 services22 patients

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.

21 services19 patients

Automated urinalysis test 81003

An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.

14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94127 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

$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 9

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

JULIAN A SANTIAGO PA-C

Physician Assistant