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

Individual provider Family Medicine Physician · NPI 1205936861

James Francis Leoni, MD is a Family Practice in Petaluma, California. Graduated from Creighton University School of Medicine in 1983, 43 years ago. Practices with Attenda Medical Group Inc, a 3-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
43
Trained at
Creighton University School of Medicine
Licensed in
CA
In the registry since
2006
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

104 Lynch Creek Way Ste 10
Petaluma, CA 94954-2355
Phone: (707) 782-9123
Fax: (707) 782-9622
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence G56154 (CA)

Record details

NPI number1205936861
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 24, 2006
Last updated in NPPESFebruary 8, 2012
Mailing address3536 Mendocino Ave, Ste 200, Santa Rosa, CA 95403-3634

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolCREIGHTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1983 (43 years in practice)
Group practice Attenda Medical Group Inc — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Petaluma