WILLIAMSON LE
NPI 1487231247
Internal Medicine in San Rafael, CA

Active since March 26, 2021PECOS EnrolledAccepts Medicare Assignment
99 MONTECILLO RD, SAN RAFAEL, CA 94903(415) 444-2000 Get Directions Write a Review

NPPES record last updated: July 3, 2024. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 3, 2024, Mar 26, 2021 (2 updates tracked since 2021).

About Williamson Le NPPES

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

WILLIAMSON LE (NPI 1487231247) is an individual internal medicine provider in San Rafael, California, licensed in California (A193437) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS and is a graduate of Loma Linda University School Of Medicine (2021).

NPPES Registry Identity

NPI1487231247
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameWILLIAMSON LE
Location Address99 MONTECILLO RDSan Rafael, CA 94903-3308
Mailing Address99 Montecillo RdSan Rafael, CA 94903-3308 · (415) 444-2000
Sole ProprietorNo
Medical School CMSLoma Linda University School Of MedicineGraduated 2021
Enumeration DateMarch 26, 2021
Last NPPES UpdateJuly 3, 20242 updates tracked since enumeration
NPPES CertifiedJuly 3, 2024
NPI 1487231247 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses Licensed in CA · A193437 Licensed in GU · TLL-2023-007
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
99 MONTECILLO RD, San Rafael, CA 94903

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

Williamson Le 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 ID8022417005
PECOS Enrollment IDI20240725003912
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 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 Williamson Le's NPI number?

The NPI number for Williamson Le is 1487231247. It was assigned to this individual provider in the NPPES registry on March 26, 2021.

Where is Williamson Le located?

Williamson Le practices at 99 Montecillo Rd, San Rafael, CA 94903. The listed phone number is (415) 444-2000.

What is Williamson Le's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Williamson Le enrolled in Medicare?

Yes. Williamson Le 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 Williamson Le was last updated on July 3, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.