2026 NPPES data Family Nurse Practitioner NPI 1750856621 FNP
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KRISSIE MAXWELL, FNP

Family Nurse Practitioner in FLAGSTAFF, 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
575
Medicare Part D claims · 81 beneficiaries · Family Nurse Practitioner avg: 1K
Industry payments
$125
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

KRISSIE MAXWELL, FNP filed 575 Medicare Part D claims in 2023 as a Family Nurse Practitioner in FLAGSTAFF, Arizona.

575
Part D claims, 2023
$125
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.

KRISSIE MAXWELL, FNP's Medicare Part D volume vs every U.S. prescriber

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

575 Top 34% higher than 66% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 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 KRISSIE MAXWELL, FNP?

Quality data not reported

NPI registry status

Active

Issued 10/08/2018

NPI 1750856621

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

575 53% 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).

KRISSIE MAXWELL, FNP appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding FNP credentials at 2920 N 4TH ST, FLAGSTAFF, AZ, 86004, with a listed phone of (928) 522-9400. NPI 1750856621 was issued on 10/08/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MAXWELL 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 575 prescription claims written by this provider, covering 81 Medicare beneficiaries and totaling roughly $25K in drug spend. 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

2920 N 4TH ST
FLAGSTAFF, AZ 86004

Provider Details

NPI 1750856621
Specialty Family Nurse Practitioner
Credentials FNP
Gender Female
NPI Issued 10/08/2018

Hospital and facility affiliations

Facilities where KRISSIE MAXWELL, FNP bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

WINSLOW INDIAN HEALTH CARE CENTER INC
LEUPP, AZ

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 KRISSIE MAXWELL, FNP. Source: openpaymentsdata.cms.gov.

Total received

$125

Largest payer

Gilead Sciences, Inc.

Most common payment type

Food and Beverage

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.

Medicare Part D Prescribing Data

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

575
Total Claims
$25K
Total Drug Cost
81
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
662
Total Day Supply
18,624
Generic Drug Cost
$4K
Antibiotic Claims
22

Patient Demographics

Average Patient Age
74.7 years
Avg HCC Risk Score
1.17
Gender Split
72% female / 28% male

Top Prescribed Drugs (Medicare Part D)

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

What KRISSIE MAXWELL, FNP 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
Lisinopril
81
Synthroid
Levothyroxine Sodium
59
Atorvastatin Calcium
38
Simvastatin
29
Tamsulosin Hcl
21
Diclofenac Sodium
20
Metformin Hcl
18
Losartan Potassium
17
Metformin Hcl Er
Metformin Hcl
17
Glipizide Xl
Glipizide
16

* 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 KRISSIE MAXWELL, FNP 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

KRISSIE MAXWELL, FNP's 575 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 MAXWELL.

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

Frequently Asked Questions

What is KRISSIE MAXWELL, FNP's specialty?
KRISSIE MAXWELL, FNP specializes in Family Nurse Practitioner and practices in FLAGSTAFF, Arizona. Credentials: FNP.
How much does KRISSIE MAXWELL, FNP prescribe under Medicare Part D?
In 2023, KRISSIE MAXWELL, FNP wrote 575 Medicare Part D claims totaling $25K in drug costs for 81 beneficiaries.
Where is KRISSIE MAXWELL, FNP located?
KRISSIE MAXWELL, FNP is located at 2920 N 4TH ST, FLAGSTAFF, AZ, 86004. Phone: (928) 522-9400.
What is KRISSIE MAXWELL, FNP's NPI number?
KRISSIE MAXWELL, FNP's National Provider Identifier (NPI) is 1750856621, issued on 10/08/2018.
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 KRISSIE MAXWELL, FNP prescribe most often?
Based on 2023 Medicare Part D data, KRISSIE MAXWELL, FNP's most frequently prescribed drugs include Lisinopril, Synthroid, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KRISSIE MAXWELL, FNP accept Medicare?
KRISSIE MAXWELL, FNP appears in CMS Medicare data with 575 Part D claims and 81 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KRISSIE MAXWELL, FNP's credentials?
KRISSIE MAXWELL, FNP's NPI is 1750856621 with credentials FNP. 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