Thomas Maxwell Fissenden, M.D.
Otolaryngology Physician · Greeley, CO
Thomas Maxwell Fissenden, M.D. is an otolaryngology physician with a practice address in Greeley, Colorado, and NPI 1851682090, issued on Apr 21, 2011. Check the license (Colorado DR.0056808, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Thomas Maxwell Fissenden
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License numbers
- DR.0056808 CO
18530 ND
Self-reported in NPPES; status is on the state search - Practice location
- 5881 W 16TH St, Greeley, CO 80634
- Phone
- (970) 313-2740
- Enumerated
- Apr 21, 2011
- Record last updated
- Jun 20, 2022
- Fax
- (970) 313-2744
- Medicare enrollment
- Enrolled (PECOS I20220629003691); accepts Medicare assignment
- Medical or professional school
- Drexel University College Of Medicine, 2011
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 188 in Colorado → Look up another NPI →
Also registered at 5881 W 16TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mary Brinkmann, MPTPhysical Therapist1114100807
- Dustin Carter, MPTPhysical Therapist1174641427
- Kevin Clay, M.D.Urology Physician1467604637
- Lesley Deen, PA-CPhysician Assistant1144291618
Verify Thomas Maxwell Fissenden in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0056808Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average otolaryngology physician in 2024
186 Medicare Part D claims for 90 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D.
Most prescribed
- Fluticasone Propionate42 claims
- Azelastine Hcl22 claims
- Prednisone16 claims
- Ipratropium Bromide15 claims
- Amoxicillin-Clavulanate Potass13 claims
- Ofloxacin11 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.
Bills Medicare through one group practice
- Innovis Health LLCFargo, ND
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas Maxwell Fissenden among 188 otolaryngology physician records in Colorado
Thomas Maxwell Fissenden, M.D. is one of 188 otolaryngology physician records with a practice address in Colorado. 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 2011, is newer than 68% of them.
- NPI issued2011 · 68% of these records are older, 27% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2011 · median 2007 among the 136 with a school on file
- Record last updated2022 · 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 207Y00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in Colorado
There are 188 otolaryngology physician records in Colorado.
All 188 in Colorado → Every provider in Greeley → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Sanjay Gupta, MDGreeley, CO 806341043298870
- Thomas Peterson, MDGreeley, CO 806341841240991
- Stephen Batuello, M.D.Fort Morgan, CO 807011508973843
- Alonzo Childers, M.D.Loveland, CO 805381033182811
- Sarvjit Gill, M.D.Loveland, CO 805381659344182
- Brad Runyan, M.D.Loveland, CO 805381700828027
- Bruce Smith, M.D.Fort Collins, CO 805281336119312
- Emily Ahadizadeh, MDFort Collins, CO 805261346745965
Common questions
What is Thomas Maxwell Fissenden, M.D.'s NPI number?
Thomas Maxwell Fissenden, M.D.'s National Provider Identifier (NPI) is 1851682090, issued on Apr 21, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Maxwell Fissenden, M.D. located?
The NPPES record lists a practice address at 5881 W 16TH St, Greeley, CO, 80634. Phone: (970) 313-2740. Providers update this record themselves, so call before visiting.
How can I verify Thomas Maxwell Fissenden, M.D.'s license?
NPPES lists Colorado license number DR.0056808, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thomas Maxwell Fissenden, M.D. prescribe under Medicare Part D?
In 2024, Thomas Maxwell Fissenden, M.D. had 186 Medicare Part D claims for 90 beneficiaries; the average among otolaryngology physician prescribers was 541. 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.