Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Ryan Nock, MD

Individual provider Gastroenterology Physician · NPI 1346773751

Ryan Nock, MD practises Internal Medicine in Vallejo, California. Graduated from University of California, San Diego School of Medicine in 2017, 9 years ago. Practices with Permanente Medical Group Inc, a 10,941-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in California and Illinois.

Years since qualifying
9
Trained at
University of California, San Diego School of Medicine
Licensed in
CA, IL
In the registry since
2017
Specialties on file
4
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

975 Sereno Dr
Vallejo, CA 94589-2441
Phone: (707) 651-1000
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 751 S Bascom Ave, San Jose, CA 95128-2604 — (408) 885-5000
  • 2650 Ridge Ave, Evanston, IL 60201-1700 — (847) 570-2000
  • 2650 Ridge Ave Ste 1304, Evanston, IL 60201-1700 — (847) 570-2000

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence A158379 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A158379 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036151638 (IL)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1346773751
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 4, 2017
Last updated in NPPESAugust 24, 2023
Certification dateAugust 24, 2023

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesGASTROENTEROLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, SAN DIEGO SCHOOL OF MEDICINE
Graduated 2017 (9 years in practice)
Group practice Permanente Medical Group Inc — 10941 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Colonoscopy 12 times · 42nd percentile
Upper gastrointestinal (GI) endoscopy for acid reflux 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients27
Services billed 66 a service is one billed item, such as a visit, a test or a procedure
Average patient age66

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 Permanente Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 10941 clinicians in the practice; 12 are shown here.

Other providers in Vallejo