Mitchell Haven Katz, MD
Pediatric Gastroenterology Physician · Orange, CA
Mitchell Haven Katz, MD is a pediatric gastroenterology physician with a practice address in Orange, California, and NPI 1366530107, issued on Oct 10, 2006. Check the license (California G46842, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mitchell Haven Katz
- Credential
- MD
- Primary taxonomy
- Pediatric Gastroenterology Physician 2080P0206X
- License number
- G46842 CA
Self-reported in NPPES; status is on the state search - Practice location
- 455 S Main St, Orange, CA 92868
- Phone
- (714) 289-4099
- Enumerated
- Oct 10, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (714) 516-4299
- Medicaid ID
- 00G468420 CA
- Entity
- Type 1 · individual
8 nearest pediatric gastroenterology physician records → All 264 in California → Look up another NPI →
Also registered at 455 S Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jose Abdenur, M.D.Clinical Biochemical Genetics Physician1154428027
- Eileen Abejar, PNPPediatric Nurse Practitioner1083865042
- Felice Adler-Shohet, M.D.Pediatric Infectious Diseases Physician1962513051
- Irfan Ahmad, MDNeonatal-Perinatal Medicine Physician1699790139
- Sana Al-Jundi, M.D.Pediatric Critical Care Medicine Physician1912090465
- Ragnar Amlie, M.D.Neonatal-Perinatal Medicine Physician1972696433
Verify Mitchell Haven Katz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G46842Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mitchell Haven Katz among 264 pediatric gastroenterology physician records in California
Mitchell Haven Katz, MD 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 not. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 63% newer
- In a Medicare fileNo · 62% of these records are
- In the CMS Doctors and Clinicians fileNo · 30% of these records are
- Record last updated2007 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 264 in California → Every provider in Orange → Pediatric Gastroenterology Physician nationwide →
The 8 pediatric gastroenterology physician records with the nearest ZIP codes
- Phyllis Agran, M.D.Orange, CA 928681578583365
- Keren Appel, MDOrange, CA 928681669892295
- Tavleen BhatiaOrange, CA 928681912318106
- Natalie Bhesania, MDOrange, CA 928681861832214
- Ashish Chogle, M.D. , M.P.H.Orange, CA 928681023273141
- Kenneth Grant, M.D.Orange, CA 928681154414225
- Jeffrey Ho, D.O.Orange, CA 928681003932963
- Richard Mathis, MDOrange, CA 928681740378561
Common questions
What is Mitchell Haven Katz, MD's NPI number?
Mitchell Haven Katz, MD's National Provider Identifier (NPI) is 1366530107, issued on Oct 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mitchell Haven Katz, MD located?
The NPPES record lists a practice address at 455 S Main St, Orange, CA, 92868. Phone: (714) 289-4099. Providers update this record themselves, so call before visiting.
How can I verify Mitchell Haven Katz, MD's license?
NPPES lists California license number G46842, 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. 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.