John S Mastroni, MD
John S Mastroni, MD is an Ophthalmology in Eureka, California. Graduated from Creighton University School of Medicine in 1989, 37 years ago. Accepts Medicare assignment. Licensed in California.
- Years since qualifying
- 37
- Trained at
- Creighton University School of Medicine
- 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
2840 Oneil LnEureka, CA 95503
Phone: (707) 443-9777
Fax: (707) 445-1003
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Pin is approximate — placed at the ZIP-code centre, not the exact door.
Specialties & licences
| Ophthalmology Physician (primary) | Taxonomy 207W00000X · Licence G76915 (CA) |
|---|
Record details
| NPI number | 1568420008 |
|---|---|
| Entity type | Individual (Type 1) |
| Gender | Male |
| Credentials | MD |
| Sole proprietor | No |
| NPI enumerated | May 3, 2006 |
| Last updated in NPPES | July 13, 2026 |
Medicare enrollment
| Medicare specialty | OPHTHALMOLOGY |
|---|---|
| Medical school | CREIGHTON UNIVERSITY SCHOOL OF MEDICINE |
| Graduated | 1989 (37 years in practice) |
| Accepts Medicare assignment | Yes — accepts the Medicare-approved amount |
Other providers in Eureka
-
Gregory N Gibb, MD
2840 Oneil Ln, Eureka, CA 95503 · (707) 443-9777
-
Humboldt Medical Eye Associates
2434 Harrison Ave, Eureka, CA 95501-3219 · (707) 443-5685
-
Christopher Lin, MD, FACS
2840 Oneil Ln, Eureka, CA 95503-4870 · (707) 443-9777
-
Louise Anne Minor, PHD, MD
2634 Harrison Ave, Eureka, CA 95501-3223 · (707) 442-8911
-
Michael Bruce Mizoguchi, MD
2434 Harrison Ave, Eureka, CA 95501-3219 · (707) 443-5685
-
Dr. Angus Bynon Stewart, MD
77 Sole St, Eureka, CA 95503 · (707) 443-9637