GRACE WEI-TING CHANG
NPI 1508424805
Physician Assistant in San Francisco, CA

Active since May 31, 2019PECOS EnrolledAccepts Medicare Assignment
2100 WEBSTER ST STE 516, SAN FRANCISCO, CA 94115(415) 600-2402(415) 369-1292 Get Directions Write a Review

NPPES record last updated: March 9, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Mar 9, 2022, Jul 1, 2021, May 31, 2019 (3 updates tracked since 2019).

About Grace Wei-ting Chang NPPES

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

GRACE WEI-TING CHANG (NPI 1508424805) is an individual physician assistant in San Francisco, California, licensed in California (PA58793) and active in the NPI registry since May 2019. She is enrolled in Medicare PECOS, maintains a secondary practice location in Portland, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1508424805
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameGRACE WEI-TING CHANG
Location Address2100 WEBSTER ST STE 516San Francisco, CA 94115-2381
Mailing Address325 Distel CirLos Altos, CA 94022-1408 · (415) 600-2402 · Fax (415) 369-1292
Fax(415) 369-1292
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateMay 31, 2019
Last NPPES UpdateMarch 9, 20223 updates tracked since enumeration
NPPES CertifiedMarch 9, 2022
NPI 1508424805 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License Licensed in CA · PA58793
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
2100 WEBSTER ST STE 516, San Francisco, CA 94115

Secondary Practice Location 1

Location 12730 SW Moody AvePortland, OR 97201-5042 · Phone (503) 494-9645

Other Identifiers 1

OtherPA58793CA · State Medical License

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

Grace Wei-ting Chang 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 ID3870995046
PECOS Enrollment IDI20210709002139
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 7

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.
323 services181 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
150 services103 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
67 services67 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
49 services23 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.
25 services20 patients
Telephone or internet assessment with verbal and written report by consulting physician, 11-20 minutes 99447
This is a virtual consultation with a specialist doctor, lasting between 11-20 minutes. It can be done over the phone or online. The physician will assess your health, discuss findings, and provide a written report summarizing the consultation and any recommendations.
12 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94115 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 2

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

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier12 claims12 services$13.92 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier12 claims12 services$63.36 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 5

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

Internal Medicine
2100 WEBSTER ST STE 516
SAN FRANCISCO, CA 94115
Internal Medicine
2100 WEBSTER ST STE 516
SAN FRANCISCO, CA 94115
Internal Medicine
2100 WEBSTER ST STE 516
SAN FRANCISCO, CA 94115
Internal Medicine (Hospice and Palliative Medicine)
2100 WEBSTER ST STE 516
SAN FRANCISCO, CA 94115
Nurse Practitioner (Family)
2100 WEBSTER ST STE 516
SAN FRANCISCO, CA 94115

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 Grace Chang's NPI number?

The NPI number for Grace Chang is 1508424805. It was assigned to this individual provider in the NPPES registry on May 31, 2019.

Where is Grace Chang located?

Grace Chang practices at 2100 Webster St Ste 516, San Francisco, CA 94115. The listed phone number is (415) 600-2402.

What is Grace Chang's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Grace Chang enrolled in Medicare?

Yes. Grace Chang 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 Grace Chang was last updated on March 9, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.