Mark H. Ellis, MD
Infectious Disease Physician · Fairfield, CA
Mark H. Ellis, MD is an infectious disease physician with a practice address in Fairfield, California, and NPI 1144317462, issued on Oct 6, 2006. Check the license (California A26035, 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 H. Ellis
- Credential
- MD
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- A26035 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1234 Empire St, Fairfield, CA 94533
- Phone
- (707) 426-3911
- Enumerated
- Oct 6, 2006
- Record last updated
- Sep 11, 2025
- Fax
- (707) 434-2043
- Medicaid ID
- 00A260350 CA
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 1,119 in California → Look up another NPI →
Also registered at 1234 Empire St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marissa AdenRegistered Nurse1437535176
- Colin AmatoMarriage & Family Therapist1790208288
- Yasmina BazaraaProfessional Counselor1790265833
- Destiny BeardenCommunity Health Worker1841904968
- Sarah BiondolilloSocial Worker1659033181
- Frederick Blair, M.D.Obstetrics & Gynecology Physician1386731768
Verify Mark H. Ellis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A26035Check 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 H. Ellis among 1,119 infectious disease physician records in California
Mark H. Ellis, MD is one of 1,119 infectious disease physician records with a practice address in California. 79% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 54% newer
- In a Medicare fileNo · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2025 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in California
There are 1,119 infectious disease physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,119 in California → Every provider in Fairfield → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Justin Graham, MDFairfield, CA 945331386751477
- Scott Crabtree, MDTravis Afb, CA 945351932360526
- Mark Derasmo, MDTravis Afb, CA 945351023647419
- Brian Hogan, M.D.Travis Afb, CA 945351689635120
- Peter Matthews, MDTravis Afb, CA 945351487758694
- Clifford Quan, MDAntioch, CA 945311235322264
- Marquise Westbrook, MDTravis Afb, CA 945351437718756
- Muni Barash, M.D.Fremont, CA 945381962428896
Common questions
What is Mark H. Ellis, MD's NPI number?
Mark H. Ellis, MD's National Provider Identifier (NPI) is 1144317462, issued on Oct 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark H. Ellis, MD located?
The NPPES record lists a practice address at 1234 Empire St, Fairfield, CA, 94533. Phone: (707) 426-3911. Providers update this record themselves, so call before visiting.
How can I verify Mark H. Ellis, MD's license?
NPPES lists California license number A26035, 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.