Ruben Jonas Colman, M.D.
Pediatric Gastroenterology Physician · Palo Alto, CA
Ruben Jonas Colman, M.D. is a pediatric gastroenterology physician with a practice address in Palo Alto, California, and NPI 1942695234, issued on Apr 2, 2015. Check the license (California A181455, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ruben Jonas Colman
- Credential
- M.D.
- Primary taxonomy
- Pediatric Gastroenterology Physician 2080P0206X
- License numbers
- A181455 CA
35.133251 OH
Self-reported in NPPES; status is on the state search - Practice location
- 725 Welch RD, Palo Alto, CA 94304
- Phone
- (650) 497-8000
- Enumerated
- Apr 2, 2015
- Record last updated
- Apr 10, 2024
- Medicare enrollment
- Enrolled (PECOS I20221026002668); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest pediatric gastroenterology physician records → All 264 in California → Look up another NPI →
Also registered at 725 Welch RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shayda Abadi, NPNurse Practitioner1316745540
- Natasha AbadillaStudent in an Organized Health Care Education/Training Program1194306928
- Alexandra Abbott, MDPediatrics Physician1760018675
- Steven Abboud, MDAnesthesiology Physician1619364908
- Ali Abdelhafiz Abdelsamea, MDPediatrics Physician1699390104
- Alireza Abdollah Shamshirsaz, M.D.Obstetrics & Gynecology Physician1881804235
Verify Ruben Jonas Colman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A181455Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
One hospital affiliation
- Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Ruben Jonas Colman among 264 pediatric gastroenterology physician records in California
Ruben Jonas Colman, 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 2015, is newer than 82% of them.
- NPI issued2015 · 82% of these records are older, 13% newer
- In a Medicare fileYes · 62% of these records are
- In the CMS Doctors and Clinicians fileYes · 30% of these records are
- Graduated2012 · median 2007 among the 78 with a school on file
- Record last updated2024 · 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 Ruben Jonas Colman, M.D.'s NPI number?
Ruben Jonas Colman, M.D.'s National Provider Identifier (NPI) is 1942695234, issued on Apr 2, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Ruben Jonas Colman, M.D. located?
The NPPES record lists a practice address at 725 Welch RD, Palo Alto, CA, 94304. Phone: (650) 497-8000. Providers update this record themselves, so call before visiting.
How can I verify Ruben Jonas Colman, M.D.'s license?
NPPES lists California license number A181455, 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.