2026 NPPES data Family Nurse Practitioner NPI 1861584187 FNP-C
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Timothy Mathews, FNP-C

Family Nurse Practitioner in Phoenix, Arizona. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
279
Medicare Part D claims · 26 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
62%
generic claims · 38% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$89.99
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

Timothy Mathews, FNP-C filed 279 Medicare Part D claims in 2023 as a Family Nurse Practitioner in Phoenix, Arizona, prescribing 62% generic.

279
Part D claims, 2023
62%
generic prescribing
$89.99
industry payments (Sunshine Act)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

Timothy Mathews, FNP-C's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

279 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about Timothy Mathews, FNP-C?

Quality data not reported

NPI registry status

Active

Issued 09/28/2006

NPI 1861584187

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

279 77% vs specialty avg

2023 prescription claims

Specialty avg: 1,222

Specialty distribution in Arizona

How Family Nurse Practitioner compares to other specialties among Arizona providers

Arizona providers

Family Nurse Practitioner share within Arizona

1. Family Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Family Nurse Practitioner share within Arizona

Specialty board-certification context

Estimated specialty board-certified rate — Family Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Family Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Family Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Family Nurse Practitioner) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Timothy Mathews, FNP-C appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding FNP-C credentials at 4212 N 16TH ST, Phoenix, AZ, 85016, with a listed phone of (602) 263-1556. NPI 1861584187 was issued on 09/28/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Mathews most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 279 prescription claims written by this provider, covering 26 Medicare beneficiaries and totaling roughly $644K in drug spend, split 38% brand-name and 62% generic by claim count, with an opioid prescribing rate of 9.0%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Family Nurse Practitioner is a high-volume specialty nationwide, with 209,817 enrolled providers across 56 states and an average of 1,222 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

4212 N 16TH ST
Phoenix, AZ 85016

Provider Details

NPI 1861584187
Specialty Family Nurse Practitioner
Credentials FNP-C
Gender Male
NPI Issued 09/28/2006

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Timothy Mathews, FNP-C. Source: openpaymentsdata.cms.gov.

Total received

$90

Largest payer

Aveo Pharmaceuticals, Inc.

Most common payment type

Education

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Above average

Timothy Mathews, FNP-C — brand share 38.0%
Specialty average (est.)

38% brand-name claims vs 62% generic, on 279 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

279
Total Claims
$644K
Total Drug Cost
26
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
314
Total Day Supply
6,504
Brand vs Generic
38% brand / 62% generic
Brand Drug Cost
$638K
Generic Drug Cost
$7K
Opioid Claims
25 (9.0% rate)

Patient Demographics

Average Patient Age
71.1 years
Avg HCC Risk Score
2.11
Gender Split
58% female / 42% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Timothy Mathews, FNP-C prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Ondansetron Hcl
20
Dexamethasone Sodium Phosphate
19
Anastrozole
15
Imatinib Mesylate
14
Gemcitabine Hcl
12
Carboplatin
11
Revlimid
Lenalidomide
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Family Nurse Practitioner Overview

How Timothy Mathews, FNP-C fits within the Family Nurse Practitioner landscape nationally.

209,817
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider

Timothy Mathews, FNP-C's 279 claims are below the specialty average of 1,222.

Nearby Family Nurse Practitioner Providers in Arizona

Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as Mathews.

Compare Family Nurse Practitioner nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Arizona medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Family Nurse Practitioner peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Timothy Mathews, FNP-C's specialty?
Timothy Mathews, FNP-C specializes in Family Nurse Practitioner and practices in Phoenix, Arizona. Credentials: FNP-C.
How much does Timothy Mathews, FNP-C prescribe under Medicare Part D?
In 2023, Timothy Mathews, FNP-C wrote 279 Medicare Part D claims totaling $644K in drug costs for 26 beneficiaries.
Where is Timothy Mathews, FNP-C located?
Timothy Mathews, FNP-C is located at 4212 N 16TH ST, Phoenix, AZ, 85016. Phone: (602) 263-1556.
What is Timothy Mathews, FNP-C's NPI number?
Timothy Mathews, FNP-C's National Provider Identifier (NPI) is 1861584187, issued on 09/28/2006.
Does Timothy Mathews, FNP-C prescribe more brand-name or generic drugs?
Timothy Mathews, FNP-C's prescribing is 38% brand-name and 62% generic drugs by claim count, with $638K in brand drug costs.
Does Timothy Mathews, FNP-C prescribe opioids?
Yes, Timothy Mathews, FNP-C had 25 opioid claims in 2023 with an opioid prescribing rate of 9.0%.
How many Family Nurse Practitioner providers are there in the US?
There are 209,817 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does Timothy Mathews, FNP-C prescribe most often?
Based on 2023 Medicare Part D data, Timothy Mathews, FNP-C's most frequently prescribed drugs include Ondansetron Hcl, Dexamethasone Sodium Phosphate, Anastrozole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Timothy Mathews, FNP-C accept Medicare?
Timothy Mathews, FNP-C appears in CMS Medicare data with 279 Part D claims and 26 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Timothy Mathews, FNP-C's credentials?
Timothy Mathews, FNP-C's NPI is 1861584187 with credentials FNP-C. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology