Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

TIFFANY LYNN MATHIAS FIELDER MD
Prescription History 1891144580
Pain Medicine - Pain Medicine in Everett, WA

Active since June 03, 2016PECOS EnrolledAccepts Medicare Assignment
4027 HOYT AVE, EVERETT, WA 98201(206) 860-5414 Get Directions

NPPES record last updated: October 7, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 7, 2026, Apr 20, 2026, Apr 8, 2026 and 2 more (5 updates tracked since 2020).

Medicare Part D Prescription History

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for TIFFANY LYNN MATHIAS FIELDER MD, an active Pain Medicine specialist practicing in Everett, WA. Our medical registry currently tracks 2 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 31 documented patient claims. Among these therapy options, the most frequently utilized medication is Meloxicam, which accounts for 18 claims alone. Use the table below to sort by claims, cost, or utilization compared with the state average; select any medication for its full profile.

2
Medications
31
Total Claims
31
30-Day Fills
Meloxicam
Most Prescribed · 18 claims
View details
2 medications · 2024 Medicare Part D
Medicare Part D medications prescribed by TIFFANY LYNN MATHIAS FIELDER MD in 2024, with prescription volumes, average cost per fill, and WA state comparisons
Medication Prescriptions (2024)Rx (2024) Avg Cost per FillCost / Fill Vs. Other WA PrescribersVs. WA Avg
Meloxicam18$4.14▼ below WA avg▼ Less than typical

About Meloxicam: Meloxicam is used to treat arthritis. Show more ▾

It reduces pain, swelling, and stiffness of the joints. Meloxicam is known as a nonsteroidal anti-inflammatory drug (NSAID). If you are treating a chronic condition such as arthritis, ask your doctor about non-drug treatments and/or using other medications to treat your pain. See also Warning section. A benzothiazine and thiazole derivative that acts as a NSAID and cyclooxygenase-2 (COX-2) inhibitor. It is used in the treatment of RHEUMATOID ARTHRITIS; OSTEOARTHRITIS; and ANKYLOSING SPONDYLITIS.

In 2024, this provider wrote 18 Medicare prescriptions for Meloxicam, about half the volume of the typical Washington prescriber of this medication (35). Medicare paid an average of $4.14 per fill, versus $5.45 statewide.

How often this provider prescribes it

This provider
18
WA average
35.0

This provider prescribes this medication less often than the average WA prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$4.14
WA average
$5.45

This provider's average cost per fill is below the WA average for this medication.

18
30-Day Fills
standardized to 30-day supplies
540
Days of Medication
total across all patients in 2024
Gabapentin13$6.69▼ below WA avg▼ Less than typical

About Gabapentin: Gabapentin is used with other medications to prevent and control seizures. Show more ▾

It is also used to relieve nerve pain following shingles (a painful rash due to herpes zoster infection) in adults. Gabapentin is known as an anticonvulsant or antiepileptic drug. A cyclohexane-gamma-aminobutyric acid derivative that is used for the treatment of PARTIAL SEIZURES; NEURALGIA; and RESTLESS LEGS SYNDROME.

In 2024, this provider wrote 13 Medicare prescriptions for Gabapentin, about 18% of the volume of the typical Washington prescriber of this medication (72.3). Medicare paid an average of $6.69 per fill, versus $19.65 statewide.

How often this provider prescribes it

This provider
13
WA average
72.3

This provider prescribes this medication less often than the average WA prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$6.69
WA average
$19.65

This provider's average cost per fill is below the WA average for this medication.

13
30-Day Fills
standardized to 30-day supplies
390
Days of Medication
total across all patients in 2024
No medications match the current filters.
▲ More than typical≈ Typical▼ Less than typical= prescription volume vs the average WA prescriber of the same medication; volume reflects practice size as well as clinical preference.Green cost= below the WA average cost per fill.

About this data. The prescription history for TIFFANY LYNN MATHIAS FIELDER MD is compiled from the Centers for Medicare & Medicaid Services (CMS) Medicare Part D Prescriber Public Use File for calendar year 2024, the most recent federal release. Figures cover prescriptions filled for Medicare Part D beneficiaries only; prescriptions under private insurance, Medicaid, or self-pay plans are not included. Because prescribing decisions are generally consistent across coverage types, this record offers a useful view of the overall Pain Medicine prescribing approach at this Everett, WA practice.

Reading the costs. Drug costs are gross amounts paid to pharmacies under Part D, including both plan and beneficiary payments. They are not the price a patient pays at the pharmacy counter. Medications with fewer than 11 claims are excluded from the federal source data, and state comparisons use the average among WA prescribers of the same medication and form, shown only when at least five prescribers contribute. Always confirm current medications and costs directly with the provider and your plan.

About the medication summaries. Drug use descriptions come from the CMS Medicare Part D Drug Spending Dashboard (2024), and substance definitions from Medical Subject Headings (MeSH) 2026, U.S. National Library of Medicine. They are summaries that do not contain all possible information about a medication and are not individual medical advice. Ask a health care professional about any medication and your specific health needs.