DR. WEI WANG MD, PHD
NPI 1861482853
Internal Medicine - Medical Oncology in San Francisco, CA

Q: What is Wei Wang's NPI number?

The NPI number for Wei Wang is 1861482853. It was assigned to this individual provider in the NPPES registry on October 21, 2005.

Q: What is Wei Wang's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Q: When was this NPI record last updated?

The NPPES record for Wei Wang was last updated on July 16, 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.

Active since October 21, 2005PECOS EnrolledAccepts Medicare Assignment

2100 WEBSTER ST, SUITE 326, SAN FRANCISCO, CA 94115(415) 885-8600 Get Directions Write a Review

NPPES record last updated: July 16, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Dr. Wei Wang Md, Phd NPPES

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

DR. WEI WANG MD, PHD (NPI 1861482853) is an individual medical oncology provider in San Francisco, California, licensed in California (A95030) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with Providence Willamette Falls Medical Center, and is a graduate of University Of Virginia School Of Medicine (1999).

NPPES Registry Identity

NPI1861482853

Entity TypeIndividualMale

Primary Taxonomy207RX0202X

Provider Legal NameDR. WEI WANGCredential: MD, PHD

Location Address2100 WEBSTER ST, SUITE 326San Francisco, CA 94115-2373

Mailing Address2100 Webster St, Suite 326San Francisco, CA 94115-2373 · (415) 885-8600

Phone(415) 885-8600

Sole ProprietorNo

Medical School CMSUniversity Of Virginia School Of MedicineGraduated 1999

Enumeration DateOctober 21, 2005

Last NPPES UpdateJuly 16, 2007

✔ NPI 1861482853 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RX0202X

Licenses✔ Licensed in CA · A95030✔ Licensed in WA · MD00039979

Definition

An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.

2100 WEBSTER ST, San Francisco, CA 94115

Open in Google Maps ↗

Other Identifiers 3

Medicare UPIN8850526WA

Medicare UPINI22948WA

Medicaid8398844WA

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

Dr. Wei Wang Md, Phd 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 ID8628036571

PECOS Enrollment IDI20070403000573

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 Reassignment

Medicare enrollment records show Wei Wang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

San Francisco Oncology Associates Medical Group Inc

Same address

Medical Oncology

2100 WEBSTER ST, #326
San Francisco, CA 94115

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

NPI 1457385379 (415) 885-8600

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 13

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.

Injection, denosumab, 1 mg J0897

Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.

5,340 services17 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

200 services39 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

181 services42 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.

175 services77 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.

154 services86 patients

Administration of chemotherapy into vein, 1 hour or less 96413

Chemotherapy is a treatment that uses drugs to destroy cancer cells. When administered into a vein, it's often through an IV. This procedure usually lasts 1 hour or less. You may feel a slight pinch as the needle is inserted, but it's generally painless.

131 services16 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

82 services22 patients

Injection, zoledronic acid, 1 mg J3489

Zoledronic acid is a medication given via injection to strengthen bones. It's often used in patients with osteoporosis or certain types of cancer. The injection helps reduce the risk of fractures and other bone complications.

70 services14 patients

Infusion, normal saline solution, 250 cc J7050

An infusion of normal saline solution, 250 cc, involves administering a sterile saltwater solution into your body through a vein, usually in your arm. This helps to replenish fluids, maintain hydration, and balance electrolytes in your body.

53 services11 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.

39 services19 patients

Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212

This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.

28 services18 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.

21 services21 patients

Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 96365

This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.

16 services14 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Providence Willamette Falls Medical Center

Acute Care Hospitals · Oregon City, OR

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number380038

Location1500 Division StreetOregon City, OR 97045 · Clackamas County

Emergency services Birthing friendly

Legacy Meridian Park Medical Center

Acute Care Hospitals · Tualatin, OR

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number380089

Location19300 SW 65th AvenueTualatin, OR 97062 · Washington County

Emergency services Birthing friendly

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

$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

$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.

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.

Capecitabine, oral, 500 mg J8521

Treatment-Treatment - Miscellaneous · category RX029N

4 suppliers28 claims2,456 services$0.73 avg. paid by Medicare

Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511

Treatment-Chemotherapy · category RH012N

4 suppliers16 claims16 services$18.92 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 20

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

JACK C ROSE

Psychiatry & Neurology (Neurology)

2100 WEBSTER ST, 4TH FLOOR
SAN FRANCISCO, CA 94115

San Francisco County (415) 600-5760

RUSSELL D WOO M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery)

2100 WEBSTER ST
SAN FRANCISCO, CA 94115

San Francisco County (415) 923-3004

DR. STAFFORD J DUHN DDS

Dentist (General Practice)

2100 WEBSTER ST, SUITE 325
SAN FRANCISCO, CA 94115

San Francisco County (415) 923-3034

DR. RICKI POLLYCOVE M.D., M.H.S.

Obstetrics & Gynecology (Gynecology)

2100 WEBSTER ST, STE. 508
SAN FRANCISCO, CA 94115

San Francisco County (415) 923-3390

OLGA HIDCHENKO NP

Clinical Nurse Specialist (Women's Health)

2100 WEBSTER ST, SUITE 319
SAN FRANCISCO, CA 94115

San Francisco County (415) 923-3123

DR. DAVID R MINOR MD

Internal Medicine (Medical Oncology)

2100 WEBSTER ST, #326
SAN FRANCISCO, CA 94115

San Francisco County (415) 885-8600

DR. PEDRO JOSE RUIZ M.D., PH.D.

Internal Medicine (Rheumatology)

2100 WEBSTER ST, SUITE 112
SAN FRANCISCO, CA 94115

San Francisco County (415) 923-3060

JONATHAN KAPLAN MD INC

Plastic Surgery

2100 WEBSTER ST, SUITE 429
SAN FRANCISCO, CA 94115

San Francisco County (415) 923-3005

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 Wei Wang's NPI number?

The NPI number for Wei Wang is 1861482853. It was assigned to this individual provider in the NPPES registry on October 21, 2005.

Where is Wei Wang located?

Wei Wang practices at 2100 Webster St Suite 326, San Francisco, CA 94115. The listed phone number is (415) 885-8600.

What is Wei Wang's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is Wei Wang enrolled in Medicare?

Yes. Wei Wang 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.

Which organization bills Medicare for Wei Wang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Wei Wang reassigns Medicare benefits to San Francisco Oncology Associates Medical Group Inc (San Francisco, CA). The 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 Wei Wang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Wei Wang affiliated with any hospitals?

According to CMS data, Wei Wang is affiliated with Providence Willamette Falls Medical Center and Legacy Meridian Park Medical Center.

When was this NPI record last updated?

The NPPES record for Wei Wang was last updated on July 16, 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.