SINDY B TO FNP
NPI 1689170698
Nurse Practitioner in Upland, CA
About Sindy B To Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SINDY B TO FNP (NPI 1689170698) is an individual nurse practitioner in Upland, California, licensed in California (NP95008708) and active in the NPI registry since March 2018. She is enrolled in Medicare PECOS, maintains a secondary practice location in Diamond Bar, and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
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
Sindy B To Fnp 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
7Medicare enrollment records show Sindy To reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chino Hills, CA 91709
- Reassigned Medicare billing, California enrollment
- 5,228 clinicians in this Medicare group
Fontana, CA 92335
- Reassigned Medicare billing, California enrollment
- 149 clinicians in this Medicare group
Rialto, CA 92376
- Reassigned Medicare billing, California enrollment
- 8 clinicians in this Medicare group
Redlands, CA 92373
- Reassigned Medicare billing, California enrollment
- 635 clinicians in this Medicare group
Tustin, CA 92780
- Reassigned Medicare billing, California enrollment
- 2,052 clinicians in this Medicare group
Los Alamitos, CA 90720
- Reassigned Medicare billing, California enrollment
- 228 clinicians in this Medicare group
Laguna Hills, CA 92653
- Reassigned Medicare billing, California enrollment
- 86 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91786 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 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
UPLAND, CA 91786
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 Sindy To's NPI number?
The NPI number for Sindy To is 1689170698. It was assigned to this individual provider in the NPPES registry on March 30, 2018.
Where is Sindy To located?
Sindy To practices at 299 W Foothill Blvd Ste 209, Upland, CA 91786. The listed phone number is (909) 982-4000.
What is Sindy To's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Sindy To enrolled in Medicare?
Yes. Sindy To 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 Sindy To's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sindy To reassigns Medicare benefits to 7 organizations: Southern California Permanente Medical Group (Chino Hills, CA), Pinnacle Medical Group, Inc (Fontana, CA), R Ruiz M D A Medical Corp (Rialto, CA), Beaver Medical Group P C (Redlands, CA), Healthcare Partners Affiliates Medical Group (Tustin, CA) and 2 more organizations, listed in the Medicare section above. 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 Sindy To'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 Sindy To was last updated on November 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.
# Sindy B To, FNP · NPI 1689170698
Nurse Practitioner physician in Upland, California. Individual provider, active in the CMS NPPES registry since March 30, 2018.
## Identity
- **NPI:** 1689170698 (Entity type: Individual)
- **Enumerated:** March 30, 2018
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** NP95008708 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 299 W FOOTHILL BLVD STE 209, Upland, CA 91786-3806
- **Phone:** (909) 982-4000
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Southern California Permanente Medical Group (NPI 1396287082, Chino Hills, CA); Pinnacle Medical Group, Inc (NPI 1376876912, Fontana, CA); R Ruiz M D A Medical Corp (NPI 1578599809, Rialto, CA); Beaver Medical Group P C (NPI 1649503319, Redlands, CA); Healthcare Partners Affiliates Medical Group (NPI 1891981502, Tustin, CA); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** November 30, 2025
- **Other identifiers:** Other NP95008708 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1689170698) · Data from the CMS NPPES public registry.