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

Individual provider Internal Medicine Physician · NPI 1427046986

James Warren Boozer, MD is an Internal Medicine in Modesto, California. Graduated from Loma Linda University School of Medicine in 1984, 42 years ago. Practices with Shane Speirs MD PC, a 13-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
42
Trained at
Loma Linda University School of Medicine
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

1541 Florida Ave Ste 200
Modesto, CA 95350-4429
Phone: (209) 577-3388
Fax: (209) 523-0764
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence G55121 (CA)

Record details

NPI number1427046986
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 10, 2005
Last updated in NPPESJanuary 17, 2017

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolLOMA LINDA UNIVERSITY SCHOOL OF MEDICINE
Graduated 1984 (42 years in practice)
Group practice Shane Speirs Md Pc — 13 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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