Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

William Ang Lee, MD

Individual provider Internal Medicine Physician · NPI 1619960705

William Ang Lee, MD is an Internal Medicine in Simi Valley, California. Qualified in 2001, 25 years ago. Practices with Simi Medical Group, Inc, a 3-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
25
Licensed in
CA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2755 Alamo St Ste 101
Simi Valley, CA 93065
Phone: (818) 726-1930
Fax: (818) 878-1563
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2950 Sycamore Dr, Simi Valley, CA 93065-1210 — (805) 526-0226

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence C50628 (CA)

Record details

NPI number1619960705
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 24, 2005
Last updated in NPPESJuly 11, 2018
Mailing address2755 Alamo St Ste 101, Simi Valley, CA 93065-1311

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Group practice Simi Medical Group, Inc — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Simi Valley