Sindy B. To, FNP
Nurse Practitioner · Upland, CA
Sindy B. To, FNP is a nurse practitioner with a practice address in Upland, California, and NPI 1689170698, issued on Mar 30, 2018. Check the license (California NP95008708, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sindy B. To
- Credential
- FNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- NP95008708 CA
Self-reported in NPPES; status is on the state search - Practice location
- 299 W Foothill Blvd Ste 209, Upland, CA 91786
- Phone
- (909) 982-4000
- Enumerated
- Mar 30, 2018
- Record last updated
- Nov 30, 2025
- Medicare enrollment
- Enrolled (PECOS I20190930002924); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →
Also registered at 299 W Foothill Blvd Ste 209
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarina Kular, M.D.Internal Medicine Physician1366484883
- Yung Jen Kuo, FNPFamily Nurse Practitioner1750838249
- Caitlin Matsumoto, PA-CMedical Physician Assistant1295104602
- Aayesha Patel, PAPhysician Assistant1003442427
- Wendy Rashidi, M.D.Family Medicine Physician1245335777
- Mary Strubhar-Brown, RN, MSN, FNPFamily Nurse Practitioner1700981867
Verify Sindy B. To in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license NP95008708Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% more Medicare Part D claims than the average nurse practitioner in 2024
1,536 Medicare Part D claims for 337 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. 28 claims were for opioids.
Most prescribed
- Atorvastatin Calcium74 claims
- Amlodipine Besylate62 claims
- Levothyroxine Sodium62 claims
- Lisinopril52 claims
- Losartan Potassium45 claims
- Omeprazole42 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $192.25
3 payments; by number, the most common kind was food and beverage; the largest payer was Galderma Laboratories, L.P. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Healthcare Partners Affiliates Medical GroupUpland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sindy B. To among 8,223 nurse practitioner records in California
Sindy B. To, FNP is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 56% of them.
- NPI issued2018 · 56% of these records are older, 39% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 42% of these records are
- Graduated2017 · median 2017 among the 3,425 with a school on file
- Record last updated2025 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
25 nurse practitioner records list a practice address in Upland
They are 25 of the 1,846 NPPES records with a practice address in Upland, and 8,223 nurse practitioner records in California.
All 8,223 in California → Every provider in Upland → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Gay Beseth, NPUpland, CA 917861346398286
- Cheryl Bock, NPUpland, CA 917861518980374
- Jody Bouma, N.P.Upland, CA 917861841425279
- Victor Campos, FNPUpland, CA 917861710034350
- Marie Carin-Parkes, NPUpland, CA 917861962687277
- David Frandsen, NPUpland, CA 917861710900584
- Chonn Gonzales, RNPUpland, CA 917861558483107
- Stephanie Jenniches, NPUpland, CA 917861114940988
Common questions
What is Sindy B. To, FNP's NPI number?
Sindy B. To, FNP's National Provider Identifier (NPI) is 1689170698, issued on Mar 30, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Sindy B. To, FNP located?
The NPPES record lists a practice address at 299 W Foothill Blvd Ste 209, Upland, CA, 91786. Phone: (909) 982-4000. Providers update this record themselves, so call before visiting.
How can I verify Sindy B. To, FNP's license?
NPPES lists California license number NP95008708, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Sindy B. To, FNP prescribe under Medicare Part D?
In 2024, Sindy B. To, FNP had 1,536 Medicare Part D claims for 337 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.