Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Tammy Pei-Hsin Cheng Sievers, MD

Individual provider Rheumatology Physician · NPI 1619004694

Dr. Tammy Pei-Hsin Cheng Sievers, MD is a Rheumatology in Ventura, California. Graduated from Washington University School of Medicine in 2002, 24 years ago. Practices with Community Memorial Health System, a 187-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
24
Trained at
Washington University School of Medicine
Licensed in
CA
In the registry since
2007
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

120 N Ashwood Ave
Ventura, CA 93003-1810
Phone: (805) 658-5800
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 5855 Olivas Park Dr, Ventura, CA 93003-7672 — (805) 667-2801

Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence A110176 (CA)

Record details

NPI number1619004694
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 27, 2007
Last updated in NPPESMarch 8, 2021
Certification dateMarch 8, 2021

Medicare enrollment

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

Medicare specialtyRHEUMATOLOGY
Medical schoolWASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2002 (24 years in practice)
Group practice Community Memorial Health System — 187 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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