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

Jack Ackerman, DO

Individual provider Internal Medicine Physician · NPI 1780794107

Jack Ackerman, DO is an Internal Medicine in San Jose, California. Graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 1988, 38 years ago. Practices with University Healthcare Alliance, a 332-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
38
Trained at
At Still University of Health Sciences, College of Osteo Med, Kirksville
Licensed in
CA
In the registry since
2006
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

227 N Jackson Ave
San Jose, CA 95116-1603
Phone: (408) 347-2002
Fax: (408) 347-2189
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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 20A6210 (CA)
Hospitalist Physician Taxonomy 208M00000X · Licence 20A6210 (CA)

Record details

NPI number1780794107
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedAugust 30, 2006
Last updated in NPPESMarch 9, 2016
Mailing address400 Race St, San Jose, CA 95126-3518

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolAT STILL UNIVERSITY OF HEALTH SCIENCES, COLLEGE OF OSTEO MED, KIRKSVILLE
Graduated 1988 (38 years in practice)
Group practice University Healthcare Alliance — 332 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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