Tiffany Lynn Mathias Fielder, MD
Pain Medicine Physician · Everett, WA
Tiffany Lynn Mathias Fielder, MD is a pain medicine physician with a practice address in Everett, Washington, and NPI 1891144580, issued on Jun 3, 2016. Check the license (Washington 61496551, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Tiffany Lynn Mathias Fielder
- Credential
- MD
- Primary taxonomy
- Pain Medicine Physician 208VP0000X
- License numbers
- 61496551 WA
A161559 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4027 Hoyt Ave, Everett, WA 98201
- Phone
- (206) 860-5414
- Enumerated
- Jun 3, 2016
- Record last updated
- Apr 20, 2026
- Medicare enrollment
- Enrolled (PECOS I20200709003148); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 4027 Hoyt Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Oluwayomi Adekeye, M.DInternal Medicine Physician1588892137
- Corinne AiaRegistered Dietitian1851876528
- Christopher Alawode, DOOccupational Medicine Physician1063909703
- Warner Asch, PA-CPhysician Assistant1750814067
- Nicole BarishHand Occupational Therapist1245831023
- Holly BoyceCase Manager/Care Coordinator1194129734
Verify Tiffany Lynn Mathias Fielder in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license 61496551Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average pain medicine physician in 2024
43 Medicare Part D claims for 18 beneficiaries, against an average of 2,095 among the 944 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Meloxicam18 claims
- Gabapentin13 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.
Industry payments in 2024: $50.30
2 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 769 providers of this specialty with any payment received $3,397.95 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
- Rapid Care Enterprises, Inc.Perris, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Pain Medicine Physician providers in Washington
There are 25 pain medicine physician records in Washington.
Other pain medicine physician records in Washington
- Abbas Asgerally, M.D.Vancouver, WA1104269711
- Tess AstleyWenatchee, WA1063131274
- Todd Baumeister, D.O.Edmonds, WA1063403897
- Robert Bowers, MDBellevue, WA1114217908
- Kenneth Breeden, DORichland, WA1417900309
- Daphne Dahms, D.O.Seattle, WA1154451888
- Zachary Fisk, MDBellevue, WA1992931711
- Guannan Ge, M.D.Vancouver, WA1609219617
- Louis Jacobson, MDCovington, WA1275625857
- Peggy Kim, MD, MS, MBASeattle, WA1023307105
Common questions
What is Tiffany Lynn Mathias Fielder, MD's NPI number?
Tiffany Lynn Mathias Fielder, MD's National Provider Identifier (NPI) is 1891144580, issued on Jun 3, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Tiffany Lynn Mathias Fielder, MD located?
The NPPES record lists a practice address at 4027 Hoyt Ave, Everett, WA, 98201. Phone: (206) 860-5414. Providers update this record themselves, so call before visiting.
How can I verify Tiffany Lynn Mathias Fielder, MD's license?
NPPES lists Washington license number 61496551, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Tiffany Lynn Mathias Fielder, MD prescribe under Medicare Part D?
In 2024, Tiffany Lynn Mathias Fielder, MD had 43 Medicare Part D claims for 18 beneficiaries; the average among pain medicine physician prescribers was 2,095. 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.