HUI-SHAN A. WEN DO
NPI 1598843070
Hospitalist in San Rafael, CA

Active since November 01, 2006PECOS EnrolledAccepts Medicare Assignment
99 MONTECILLO RD, SAN RAFAEL, CA 94903(415) 444-4885 Get Directions Write a Review

NPPES record last updated: December 9, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Hui-shan A. Wen Do NPPES

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

HUI-SHAN A. WEN DO (NPI 1598843070) is an individual hospitalist provider in San Rafael, California, licensed in California (20A9083) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS and is a graduate of Other (2003).

NPPES Registry Identity

NPI1598843070
Entity TypeIndividualFemale
Primary Taxonomy208M00000X
Provider Legal NameHUI-SHAN A. WENCredential: DO
Location Address99 MONTECILLO RDSan Rafael, CA 94903-3308
Mailing Address1800 Harrison St Fl 7Oakland, CA 94612-3466 · (510) 625-6262
Sole ProprietorNo
Medical School CMSOtherGraduated 2003
Enumeration DateNovember 1, 2006
Last NPPES UpdateDecember 9, 2021
✔ NPI 1598843070 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in CA · 20A9083
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
99 MONTECILLO RD, San Rafael, CA 94903

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

Hui-shan A. Wen Do 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 ID8628079258
PECOS Enrollment IDI20070125000118
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 Hui-shan Wen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Internal Medicine
901 NEVIN
Richmond, CA 94801
  • Reassigned Medicare billing, California enrollment
  • 20,078 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94903 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
$154.04 typical visit price
range $69.07 – $202.63
Typical copayment $38.51 (range $17.26 – $50.65)
Most-billed visit code 99204
Established Patient
$119.61 typical visit price
range $23.44 – $166.64
Typical copayment $29.90 (range $5.86 – $41.66)
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.

Social Worker (Clinical)
99 MONTECILLO RD
SAN RAFAEL, CA 94903
Dermatology
99 MONTECILLO RD
SAN RAFAEL, CA 94903
Anesthesiology
99 MONTECILLO RD
SAN RAFAEL, CA 94903
Radiology (Diagnostic Radiology)
99 MONTECILLO RD
SAN RAFAEL, CA 94903
Hospitalist
99 MONTECILLO RD
SAN RAFAEL, CA 94903
Speech-Language Pathologist
99 MONTECILLO RD
SAN RAFAEL, CA 94903
Internal Medicine
99 MONTECILLO RD
SAN RAFAEL, CA 94903
Nurse Anesthetist, Certified Registered
99 MONTECILLO RD
SAN RAFAEL, CA 94903

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 Hui-shan Wen's NPI number?

The NPI number for Hui-shan Wen is 1598843070. It was assigned to this individual provider in the NPPES registry on November 1, 2006.

Where is Hui-shan Wen located?

Hui-shan Wen practices at 99 Montecillo Rd, San Rafael, CA 94903. The listed phone number is (415) 444-4885.

What is Hui-shan Wen's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Hui-shan Wen enrolled in Medicare?

Yes. Hui-shan Wen 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 Hui-shan Wen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Hui-shan Wen reassigns Medicare benefits to Permanente Medical Group Inc (Richmond, 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 Hui-shan Wen'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 Hui-shan Wen was last updated on December 9, 2021. 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.