Croix Fossum, M.D.
in San Diego, CA. Individual provider (NPI-1).
NPI number1104351006
StatusActive
Last updated in NPPESFeb 18, 2026
Details
- NPI
- 1104351006
- Entity type
- Individual (NPI-1)
- Name
- Croix Fossum
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- Enumeration date
- Apr 28, 2017
- Certification date
- Feb 18, 2026
- Last updated
- Feb 18, 2026
Medicare and OIG
- Medicare enrolled (PECOS)
- Yes · PRACTITIONER - RADIATION ONCOLOGY
- Can order and refer
- Part B Yes · DME Yes · Home health Yes · Power mobility Yes · Hospice Yes
- OIG exclusion list
- This NPI is not listed
CMS and OIG files of November 2026. PECOS lookup · OIG exclusion check
Taxonomy and licenses
| Taxonomy code | Description | License | State | Primary |
|---|---|---|---|---|
| 2085R0001X | A159160 | CA | Yes |
Practice location
7901 Frost StSan Diego, CA 92123-2701
Phone 858-939-5010 · Fax 858-939-5021
Mailing address
Po Box 509015Dept 338
San Diego, CA 92150-9015
Other practice locations
5555 Grossmont Center Dr
La Mesa, CA 91942-3019
La Mesa, CA 91942-3019
Phone 619-740-4500 · Fax 619-740-8499
769 Medical Center Ct
Chula Vista, CA 91911-6602
Chula Vista, CA 91911-6602
Phone 619-502-5851 · Fax 619-502-5865
Is something wrong?
This page shows exactly what the provider filed with NPPES. Only the provider (or their surrogate) can change it, by signing in to NPPES. Our page updates within a day of their change. See how to update NPI information.
Other Radiation Oncology Physician providers in San Diego, CA
- Robert Charles Beckmann, MDNPI 1639580830
- Andrew Luke Chang, M.D.NPI 1255513859
- Henry Chessin, M.D.NPI 1235320342
- Jehee Isabelle Choi, MDNPI 1619260056
- Brian Chou, MDNPI 1770070609
- Lori A Coleman, MDNPI 1053348920
- Ronald T. Davis, M.D.NPI 1184622532
- Anna Margit Dornisch, MDNPI 1659957017
- Donald B Fuller, M.D.NPI 1285632711
- Kripa Anil Guram, MDNPI 1003377391
All 46 Radiation Oncology Physician providers in San Diego · All 61,118 providers in San Diego
Checking a whole list?
Paste a list of NPIs and get status, record, Medicare enrollment and OIG exclusion for each one. 100 free a day, then from $5 for 5,000. Useful for credentialing, billing and pharmacy claim checks.