Rachel Mariko Ruiz, M.D.
Pediatric Gastroenterology Physician · Palo Alto, CA
Rachel Mariko Ruiz, M.D. is a pediatric gastroenterology physician with a practice address in Palo Alto, California, and NPI 1891131611, issued on May 20, 2013. Check the license (California A140532, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Rachel Mariko Ruiz
- Credential
- M.D.
- Primary taxonomy
- Pediatric Gastroenterology Physician 2080P0206X
- License number
- A140532 CA
Self-reported in NPPES; status is on the state search - Practice location
- 750 Welch RD, Palo Alto, CA 94304
- Phone
- (650) 723-5070
- Enumerated
- May 20, 2013
- Record last updated
- May 1, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pediatric gastroenterology physician records → All 264 in California → Look up another NPI →
Also registered at 750 Welch RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Anica Bulic, MDPediatric Cardiology Physician1699053298
- Atnhony Burgos, MD, MPHPediatrics Physician1033261524
- Heather Cahan, MDNeonatal-Perinatal Medicine Physician1053395343
Verify Rachel Mariko Ruiz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A140532Check 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: $28.80
1 payment: food and beverage; the largest payer was Erbe USA Inc. The 1,184 providers of this specialty with any payment received $2,585.05 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.
Rachel Mariko Ruiz among 264 pediatric gastroenterology physician records in California
Rachel Mariko Ruiz, M.D. is one of 264 pediatric gastroenterology physician records with a practice address in California. 62% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 74% of them.
- NPI issued2013 · 74% of these records are older, 22% newer
- In a Medicare fileYes · 62% of these records are
- In the CMS Doctors and Clinicians fileNo · 30% of these records are
- Record last updated2019 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0206X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Gastroenterology Physician providers in California
There are 264 pediatric gastroenterology physician records in California.
All 264 in California → Every provider in Palo Alto → Pediatric Gastroenterology Physician nationwide →
The 8 pediatric gastroenterology physician records with the nearest ZIP codes
- Dorsey Bass, MDPalo Alto, CA 943041275624991
- William Berquist, MDPalo Alto, CA 943041659461457
- Ricardo Castillo, MDPalo Alto, CA 943041487738811
- Mitchell Cohen, MDPalo Alto, CA 943041235202029
- Matthew Goldman, M.D.Palo Alto, CA 943041255436242
- Alka Goyal, MDPalo Alto, CA 943041831162726
- Roberto Gugig, MDPalo Alto, CA 943041639138852
- Sohail Husain, MDPalo Alto, CA 943041427031970
Common questions
What is Rachel Mariko Ruiz, M.D.'s NPI number?
Rachel Mariko Ruiz, M.D.'s National Provider Identifier (NPI) is 1891131611, issued on May 20, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Rachel Mariko Ruiz, M.D. located?
The NPPES record lists a practice address at 750 Welch RD, Palo Alto, CA, 94304. Phone: (650) 723-5070. Providers update this record themselves, so call before visiting.
How can I verify Rachel Mariko Ruiz, M.D.'s license?
NPPES lists California license number A140532, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
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.