DR. CATHERINE CASTRO SHERMAN D.O.
NPI 1710299185
Internal Medicine in Colton, CA
About Dr. Catherine Castro Sherman D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CATHERINE CASTRO SHERMAN D.O. (NPI 1710299185) is an individual internal medicine provider in Colton, California, licensed in California (20A10939) and active in the NPI registry since July 2010. She is enrolled in Medicare PECOS and is a graduate of Other (2008).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Catherine Castro Sherman D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Catherine Sherman reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Placentia, CA 92870
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Chest And Critical Care Consultants A Medical Group
- 96 clinicians in this Medicare group
Tustin, CA 92780
- Reassigned Medicare billing, California enrollment
- 2,052 clinicians in this Medicare group
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 187 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92324 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
COLTON, CA 92324
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Catherine Sherman's NPI number?
The NPI number for Catherine Sherman is 1710299185. It was assigned to this individual provider in the NPPES registry on July 13, 2010.
Where is Catherine Sherman located?
Catherine Sherman practices at 400 N Pepper Ave, Colton, CA 92324. The listed phone number is (909) 580-1000.
What is Catherine Sherman's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Catherine Sherman enrolled in Medicare?
Yes. Catherine Sherman is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Catherine Sherman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Catherine Sherman reassigns Medicare benefits to 3 organizations: Chest And Critical Care Consultants (Placentia, CA), Healthcare Partners Affiliates Medical Group (Tustin, CA) and Southern California Hospitalist Network Medical Group Inc (Orange, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Catherine Sherman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Catherine Sherman was last updated on July 13, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Catherine Castro Sherman, D.O. · NPI 1710299185
Internal Medicine physician in Colton, California. Individual provider, active in the CMS NPPES registry since July 13, 2010.
## Identity
- **NPI:** 1710299185 (Entity type: Individual)
- **Enumerated:** July 13, 2010
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 20A10939 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 400 N PEPPER AVE, Colton, CA 92324-1801
- **Phone:** (909) 580-1000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Chest And Critical Care Consultants (NPI 1023105269, Placentia, CA); Healthcare Partners Affiliates Medical Group (NPI 1891981502, Tustin, CA); Southern California Hospitalist Network Medical Group Inc (NPI 1790880458, Orange, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2008
## Record status
- **NPPES last updated:** July 13, 2010
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Source: [NPI Profile](https://npiprofile.com/npi/1710299185) · Data from the CMS NPPES public registry.