Kathryn Ross, M.D.
Gastroenterology Physician · Newport Beach, CA
Kathryn Ross, M.D. is a gastroenterology physician with a practice address in Newport Beach, California, and NPI 1871537035, issued on Jun 16, 2006. Check the license (California G42979, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kathryn Ross
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- G42979 CA
Self-reported in NPPES; status is on the state search - Practice location
- 901 Dover Dr, Newport Beach, CA 92660
- Phone
- (949) 650-8700
- Enumerated
- Jun 16, 2006
- Entity
- Type 1 · individual
Also registered at 901 Dover Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Beth Ballinger, O.D., F.C.O.V.D.Vision Therapy Optometrist1366583965
- Elizabeth Burklee, D.C.Chiropractor1548348097
- Christine Chai, MDGynecology Physician1528042397
- Fred Galluccio, M.D.Family Medicine Physician1104934397
- Angela Iacovino, D.C.Chiropractor1275635575
- Mercedes NguyenFamily Nurse Practitioner1518839174
Verify Kathryn Ross in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G42979Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
94% fewer Medicare Part D claims than the average gastroenterology physician in 2024
50 Medicare Part D claims, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol19 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.
Gastroenterology Physician providers in California
There are 2,140 gastroenterology physician records in California.
Other gastroenterology physician records in California
- David Aarons, MDLodi, CA1619081379
- Constante Abaya, MDOxnard, CA1003918459
- Sadeea Abbasi, M.D., PH.D.Los Angeles, CA1366713513
- Basim Abdelkarim, MDUpland, CA1932217544
- Homan Abdollahzadeh, MDPalm Springs, CA1184634826
- John Abdulian, M.D.Fresno, CA1437114113
- Hussein Abidali, DORancho Cucamonga, CA1205274768
- Alaa Abousaif, MDOrange, CA1235124108
- Donald Abrahm, M.D.Newport Beach, CA1215022405
- Maria Abreu, M.D.West Hollywood, CA1598793374
Common questions
What is Kathryn Ross, M.D.'s NPI number?
Kathryn Ross, M.D.'s National Provider Identifier (NPI) is 1871537035, issued on Jun 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kathryn Ross, M.D. located?
The NPPES record lists a practice address at 901 Dover Dr, Newport Beach, CA, 92660. Phone: (949) 650-8700. Providers update this record themselves, so call before visiting.
How can I verify Kathryn Ross, M.D.'s license?
NPPES lists California license number G42979, 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.
How much does Kathryn Ross, M.D. prescribe under Medicare Part D?
In 2024, Kathryn Ross, M.D. had 50 Medicare Part D claims; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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 27, 2026.