Mark Gregory Ellis, MD
Pediatrics Physician · Eureka, CA
Mark Gregory Ellis, MD is a pediatrics physician with a practice address in Eureka, California, and NPI 1003812744, issued on Jun 27, 2005. Check the license (California G65432, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mark Gregory Ellis
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- G65432 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2200 Tydd St, Eureka, CA 95501
- Phone
- (707) 269-7051
- Enumerated
- Jun 27, 2005
- Record last updated
- Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (707) 269-7054
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 9,272 in California → Look up another NPI →
Also registered at 2200 Tydd St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Angelo Alfano, FNPFamily Nurse Practitioner1023503307
- Paula Amis, RNRegistered Nurse1962141523
- Jessica AndersenPhysician Assistant1184327868
- Wayne Barton, RNRegistered Nurse1972246577
- Angela Beyer, APRN-BCFamily Nurse Practitioner1457978173
- Susan Blackburn, RNRegistered Nurse1487264586
Verify Mark Gregory Ellis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G65432Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mark Gregory Ellis among 9,272 pediatrics physician records in California
Mark Gregory Ellis, MD is one of 9,272 pediatrics physician records with a practice address in California. 31% 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 96% newer
- In a Medicare fileNo · 31% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2018 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatrics Physician providers in California
There are 9,272 pediatrics physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 9,272 in California → Every provider in Eureka → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Lorraine Byrd, DOEureka, CA 955011114968310
- Pippa Coulter, MD, PHDEureka, CA 955011033183777
- Leslie Fittinghoff, MDEureka, CA 955011902844046
- Elizabeth FlahertyEureka, CA 955011245817311
- Teresa Frankovich, MDEureka, CA 955011073609400
- James Matsuda, MDEureka, CA 955011720066061
- John Sullivan, MDEureka, CA 955011124107081
- Devin Wong, MDEureka, CA 955011942521232
Common questions
What is Mark Gregory Ellis, MD's NPI number?
Mark Gregory Ellis, MD's National Provider Identifier (NPI) is 1003812744, issued on Jun 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark Gregory Ellis, MD located?
The NPPES record lists a practice address at 2200 Tydd St, Eureka, CA, 95501. Phone: (707) 269-7051. Providers update this record themselves, so call before visiting.
How can I verify Mark Gregory Ellis, MD's license?
NPPES lists California license number G65432, 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.