Tiffany Roslyn Lewis, M.D.
Emergency Medicine Physician · Fairfield, CA
Tiffany Roslyn Lewis, M.D. is an emergency medicine physician with a practice address in Fairfield, California, and NPI 1902124241, issued on May 11, 2010. Check the license (California A128528, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Tiffany Roslyn Lewis
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A128528 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1200 B Gale Wilson Blvd, Fairfield, CA 94533
- Phone
- (707) 646-5000
- Enumerated
- May 11, 2010
- Record last updated
- Jan 15, 2023
- Medicare enrollment
- Enrolled (PECOS I20151030000742); accepts Medicare assignment
- Medical or professional school
- University Of California, Davis School Of Medicine, 2012
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 1200 B Gale Wilson Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Yusuf Ahmad, MDAnesthesiology Physician1104020262
- Tashira AlexanderRegistered Dietitian1902732480
- Nail Amro, M.D.Internal Medicine Physician1861413551
- Allan Au, M.D.Hospitalist Physician1427495563
- Erin Berntsen, ACNPAcute Care Nurse Practitioner1205640489
- Neeta BhasinCritical Care Pharmacist1457984882
Verify Tiffany Roslyn Lewis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A128528Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average emergency medicine physician in 2024
145 Medicare Part D claims for 77 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 16 claims were for opioids.
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.
Bills Medicare through 3 group practices
- Northbay Health Medical FoundationDixon, CA
- Northbay Physicians Surgery Center, LLCVacaville, CA
- Permanente Medical Group IncRoseville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tiffany Roslyn Lewis among 7,751 emergency medicine physician records in California
Tiffany Roslyn Lewis, M.D. is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 58% of them.
- NPI issued2010 · 58% of these records are older, 40% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2012 · median 2011 among the 4,560 with a school on file
- Record last updated2023 · 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 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Fairfield → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- William Ankney, M.D.Fairfield, CA 945331760419824
- David Dennis, M.D.Fairfield, CA 945331730116799
- Caesar Djavaherian, M.D.Fairfield, CA 945331790760551
- David Ehrenfeld, M.D.Fairfield, CA 945331417051830
- Steven Garcia, MDFairfield, CA 945331376868323
- Julie Hersk, M.D.Fairfield, CA 945331023114030
- Toshi Hiraoka, M.D.Fairfield, CA 945331467489427
- Gary Hollinger, PA-CFairfield, CA 945331598868705
Common questions
What is Tiffany Roslyn Lewis, M.D.'s NPI number?
Tiffany Roslyn Lewis, M.D.'s National Provider Identifier (NPI) is 1902124241, issued on May 11, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Tiffany Roslyn Lewis, M.D. located?
The NPPES record lists a practice address at 1200 B Gale Wilson Blvd, Fairfield, CA, 94533. Phone: (707) 646-5000. Providers update this record themselves, so call before visiting.
How can I verify Tiffany Roslyn Lewis, M.D.'s license?
NPPES lists California license number A128528, 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 Tiffany Roslyn Lewis, M.D. prescribe under Medicare Part D?
In 2024, Tiffany Roslyn Lewis, M.D. had 145 Medicare Part D claims for 77 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
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.