Dr. John W Roark Jr., MD
Dr. John W Roark Jr., MD is a Gastroenterology Physician in Oakland, California. Licensed in California. Registered with an NPI since 2006.
- Licensed in
- CA
- In the registry since
- 2006
What do these letters mean?
- MD — Doctor of Medicine
- A physician who completed allopathic medical school.
Practice location Address checks out
3741 Linwood AveOakland, CA 94602-1711
Phone: (510) 589-8774
Show map & directions
Directions in Google Maps · Apple Maps · OpenStreetMap
Pin is approximate — placed at the ZIP-code centre, not the exact door.
Specialties & licences
| Gastroenterology Physician (primary) | Taxonomy 207RG0100X · Licence G038581 (CA) |
|---|
Record details
| NPI number | 1609834266 |
|---|---|
| Entity type | Individual (Type 1) |
| Gender | Male |
| Credentials | MD |
| Sole proprietor | No |
| NPI enumerated | May 3, 2006 |
| Last updated in NPPES | February 10, 2026 |
| Certification date | February 10, 2026 |
Other providers in Oakland
-
Cynthia J. Morton, MD
275 W Macarthur, Oakland, CA 94611-5641 · (510) 752-1000
-
Laura Armstrong Pace, MD, PHD
1672 17th St, Oakland, CA 94607-1644 · (801) 688-8636
-
Sassan Pazirandeh, MD
275 W Macarthur Blvd, Oakland, CA 94611-5641 · (510) 752-1000
-
Ralph L Peterson, MD
10520 Macarthur Blvd, Oakland, CA 94605-5248 · (510) 562-7467
-
Dr. Stephanie A. Santos, MD
275 W Macarthur Blvd, Oakland, CA 94611-5641 · (510) 752-1000
-
Dr. Neil H Stollman, MD
300 Frank H Ogawa Plz Ste 355, Oakland, CA 94612-2088 · (510) 444-3297
-
Michael P. Udkow, MD
280 W Macarthur Blvd, Oakland, CA 94611-5642 · (510) 752-1000
-
Dr. Liana Vesga, MD
300 Frank H Ogawa Plz Ste 355, Oakland, CA 94612-2088 · (510) 444-3297