Daniel William Flis, M.D.
Otolaryngology Physician · Greenbrae, CA
Daniel William Flis, M.D. is an otolaryngology physician with a practice address in Greenbrae, California, and NPI 1316266042, issued on May 20, 2010. Check the license (California A134236, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Daniel William Flis
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- A134236 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1000 S Eliseo Dr, Greenbrae, CA 94904
- Phone
- (415) 461-9770
- Enumerated
- May 20, 2010
- Record last updated
- Nov 7, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (415) 461-6744
- Medicare enrollment
- Enrolled (PECOS I20150624002849); accepts Medicare assignment
- Medical or professional school
- Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc), 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 1,212 in California → Look up another NPI →
Also registered at 1000 S Eliseo Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Romeo Agbayani, MDOtolaryngology Physician1205909603
- Matthew BedellOphthalmology Physician1508159344
- Patrick Bennett, M.D.Urology Physician1891713418
- Arthur Fenn, MDPlastic Surgery within the Head & Neck (Otolaryngology) Physician1043378409
- Mei-Ling Fong, M.D.Internal Medicine Physician1346228707
- Flash Gordon, M.D.General Practice Physician1982666764
Verify Daniel William Flis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A134236Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average otolaryngology physician in 2024
230 Medicare Part D claims for 126 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. 15 claims were for opioids.
Most prescribed
- Ipratropium Bromide67 claims
- Azelastine Hcl40 claims
- Amoxicillin-Clavulanate Potass13 claims
- Fluocinolone Acetonide Oil13 claims
- Hydrocodone-Acetaminophen11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $235.75
10 payments; by number, the most common kind was food and beverage; the largest payer was Smith+Nephew, Inc. The 6,429 providers of this specialty with any payment received $1,922.50 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Regents OF The University OF California - UcsfSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Daniel William Flis among 1,212 otolaryngology physician records in California
Daniel William Flis, M.D. is one of 1,212 otolaryngology physician records with a practice address in California. 80% 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 69% of them.
- NPI issued2010 · 69% of these records are older, 29% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2009 · median 2004 among the 818 with a school on file
- Record last updated2016 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in California
There are 1,212 otolaryngology physician records in California.
All 1,212 in California → Every provider in Greenbrae → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Romeo Agbayani, MDGreenbrae, CA 949041205909603
- Kambridge Hribar, MDGreenbrae, CA 949041619100195
- Francis Parnell, M.D.Greenbrae, CA 949041861649188
- Michael Shapiro, MDGreenbrae, CA 949041881786549
- Jeffrey Chien, MDSan Rafael, CA 949031770667776
- J. Brian Delfanti, MDSan Rafael, CA 949031356425425
- Thomas Guerry, MDSan Rafael, CA 949031457435430
- Gary Mizono, MDSan Rafael, CA 949031174607147
Common questions
What is Daniel William Flis, M.D.'s NPI number?
Daniel William Flis, M.D.'s National Provider Identifier (NPI) is 1316266042, issued on May 20, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Daniel William Flis, M.D. located?
The NPPES record lists a practice address at 1000 S Eliseo Dr, Greenbrae, CA, 94904. Phone: (415) 461-9770. Providers update this record themselves, so call before visiting.
How can I verify Daniel William Flis, M.D.'s license?
NPPES lists California license number A134236, 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 Daniel William Flis, M.D. prescribe under Medicare Part D?
In 2024, Daniel William Flis, M.D. had 230 Medicare Part D claims for 126 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.
What is Daniel William Flis, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.