Sandra So
Specialist · Chino, CA
Sandra So is a specialist with a practice address in Chino, California, and NPI 1184723306, issued on Sep 22, 2006. Check the license (California A50856, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sandra So
- Primary taxonomy
- Specialist 174400000X
- License number
- A50856 CA
Self-reported in NPPES; status is on the state search - Practice location
- 12584 Central Ave, Chino, CA 91710
- Phone
- (909) 287-1800
- Enumerated
- Sep 22, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 00A508560 CA
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 12584 Central Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Abigail Carino-Romo, N.P.Nurse Practitioner1063670859
- Stacey Fischer, NURSE PRACTITIONERNurse Practitioner1134427891
Verify Sandra So in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license A50856Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $49.72
2 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 5,844 providers of this specialty with any payment received $4,760.79 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.
Sandra So among 5,749 specialist records in California
Sandra So is one of 5,749 specialist records with a practice address in California. 30% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 60% newer
- In a Medicare fileYes · 30% of these records are
- In the CMS Doctors and Clinicians fileNo · 19% of these records are
- Record last updated2007 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in California
There are 5,749 specialist records in California.
All 5,749 in California → Every provider in Chino → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Sarina GarciaChino, CA 917101205728805
- Dana HaradaChino, CA 917101962794859
- Savita Malik, MDChino, CA 917101689705386
- Harsha Rana, OTRChino, CA 917101417248006
- Donald Roberts, M.S.,ATCChino, CA 917101811082456
- Cheryl Rollins-AllenChino, CA 917101609168590
- Carl Smith, M.D.Chino, CA 917101124143334
- Marguerite Sumadchat, PTChino, CA 917101295064376
Common questions
What is Sandra So's NPI number?
Sandra So's National Provider Identifier (NPI) is 1184723306, issued on Sep 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sandra So located?
The NPPES record lists a practice address at 12584 Central Ave, Chino, CA, 91710. Phone: (909) 287-1800. Providers update this record themselves, so call before visiting.
How can I verify Sandra So's license?
NPPES lists California license number A50856, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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.