Dr. Douglas J. Hay, MD
Dr. Douglas J. Hay, MD is an Internal Medicine Physician in Colton, 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
1300 E Cooley DrColton, CA 92324-3905
Phone: (909) 370-4100
Fax: (909) 796-4158
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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 G47396 (CA) |
|---|
Record details
| NPI number | 1386690980 |
|---|---|
| Entity type | Individual (Type 1) |
| Gender | Male |
| Credentials | MD |
| Sole proprietor | No |
| NPI enumerated | May 25, 2006 |
| Last updated in NPPES | July 13, 2026 |
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