Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Dr. Johnathan P. Pak, MD

Individual provider Anesthesiology Physician · NPI 1992723456

Dr. Johnathan P. Pak, MD practises Anesthesiology in San Jose, California. Graduated from University of Rochester School of Medicine and Dentistry in 2000, 26 years ago. Practices with G2 Anesthesia PC, a 103-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
26
Trained at
University of Rochester School of Medicine and Dentistry
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

2425 Samaritan Dr Dept OF Anesthesiology
San Jose, CA 95124-3908 Not confirmed with CMS for 12 years — call before visiting
Phone: (408) 558-2100
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence A76875 (CA)

Record details

NPI number1992723456
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 17, 2006
Last updated in NPPESMay 15, 2014

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolUNIVERSITY OF ROCHESTER SCHOOL OF MEDICINE AND DENTISTRY
Graduated 2000 (26 years in practice)
Group practice G2 Anesthesia Pc — 103 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients266
Services billed 286 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at G2 Anesthesia PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 103 clinicians in the practice; 12 are shown here.

Other providers in San Jose