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2026 NPPES data Surgical Physician Assistant NPI 1245418839 PHYSICIAN ASSISTANT
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Kassondra Mellen, PHYSICIAN ASSISTANT

Surgical Physician Assistant in Mesa, Arizona.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,380 in Surgical Physician Assistant, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
12K
Medicare Part D claims · 396 beneficiaries · Surgical Physician Assistant avg: 341
Generic prescribing
87%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
78.8/100
▼ 5 pts below national avg 83.5 · Above neutral
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Kassondra Mellen, PHYSICIAN ASSISTANT reported a CMS MIPS final score of 78.8/100 - below the 83.5 national average - and filed 11,639 Medicare Part D claims in 2024.

78.8/100
MIPS score · -5 vs avg
12K
Part D claims, 2024
87%
generic prescribing
≥23rd
pct among measured MIPS (lower-bound band)

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.

Federal trust snapshot

What official records show about Kassondra Mellen, PHYSICIAN ASSISTANT

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1245418839), first enumerated 02/05/2008.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 11,639 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 78.8/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Hospital affiliations

    2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

CMS NPPES provider registry desk

NPI 1245418839 · Surgical Physician Assistant

NPI-10 · ENUM-MID · TAX-MID · MIPS-BELOW · RX-HEAVY · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1245418839
  • ENUM-MID 2008
  • TAX-MID 16K Surgical Physician
  • MIPS-BELOW 78.8/100
  • RX-HEAVY 12K claims
  • BOOK-THIN 444 in Arizona
  • PHOTO-FINISH Ivan Bennett, PA · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Kassondra Mellen, PHYSICIAN ASSISTANT's MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

79 ≥ 23rd percentile 23% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). This entry sits in this band. 80–90: 129,887 measured providers (29%). Above this entry. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured providers. 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Kassondra Mellen, PHYSICIAN ASSISTANT sits

This provider among surgical physician assistant peers

Across the 3,657 surgical physician assistant providers who report both Medicare Part D prescribing and a MIPS quality score, Kassondra Mellen, PHYSICIAN ASSISTANT writes more Part D claims than 100% of them and scores higher on MIPS quality than 24% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 98Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 98Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 40Kassondra Mellen, PHYSICIAN ASSISTANT, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 24
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one surgical physician assistant peer from a representative sample of 60; the gold marker is Kassondra Mellen, PHYSICIAN ASSISTANT. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

What does the federal data show about Kassondra Mellen, PHYSICIAN ASSISTANT?

Near national average

NPI registry status

Active

Issued 02/05/2008

NPI 1245418839

Primary specialty

Surgical Physician Assistant

Mid-sized

16,380 US NPIs in this specialty

Medicare Part D claims

11,639 34× vs specialty avg

2024 prescription claims

Specialty avg: 341

MIPS final score

78.8/100 4.7 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in Arizona

How Surgical Physician Assistant compares to other specialties among Arizona providers

Arizona providers
Behavior Technician6%Pharmacist5.4%Family Nurse Practitioner4.3%Physical Therapist4.1%Student in an Organized Heal…3.6%Speech-Language Pathologist3.5%Surgical Physician Assistant0.4%
Largest specialties in Arizona (% of in-state providers)

Medicare quality performance, MIPS

Kassondra Mellen, PHYSICIAN ASSISTANT's 2023 MIPS final score plotted against the Surgical Physician Assistant national average

Near national average
MIPS Final Score
78.8/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%78.8%
MIPS final score (Surgical Physician Assistant) - 78.8/100 vs national avg 83.5
How MIPS and board certification work

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).

Practice Address

1432 S DOBSON RD STE 301
Mesa, AZ 85202
(480) 464-9400

Provider Details

NPI 1245418839
Specialty Surgical Physician Assistant
Credentials PHYSICIAN ASSISTANT
Gender Female
NPI Issued 02/05/2008

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

78.7673
Final Score
Measured-score avg: 83.5
74.8325
Quality
62.8014
Cost
69
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Kassondra Mellen, PHYSICIAN ASSISTANT 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.

Atlas Medical Aco LLC
Mesa, AZ
Century Care Inc
Mesa, 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).

Brand vs generic prescribing mix · Typical

Kassondra Mellen, PHYSICIAN ASSISTANT - brand share 11.0%
Surgical Physician Assistant average

11% brand-name claims vs 87% generic, on 11,639 2024 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 2024.

11,639
Total Claims
$798K
Total Drug Cost
396
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
12,588.3
Total Day Supply
343,892
Brand vs Generic
11% brand / 87% generic
Brand Drug Cost
$573K
Generic Drug Cost
$217K
Opioid Claims
241 (2.1% rate)
Antibiotic Claims
323

Patient Demographics

Average Patient Age
82.6 years
Avg HCC Risk Score
2.51
Gender Split
68% female / 32% male
Age Distribution
<65: 13, 65-74: 54, 75-84: 151, 85+: 178

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What Kassondra Mellen, PHYSICIAN ASSISTANT prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Levothyroxine Sodium
 629
Atorvastatin Calcium
 535
Potassium Chloride
 435
Eliquis
Apixaban
361
Lisinopril
 332
Trazodone Hcl
 322
Furosemide
 318
Sertraline Hcl
 300
Gabapentin
 264
Amlodipine Besylate
 250

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

More Surgical Physician Assistant in AZ → All providers in Arizona → Compare specialties →

Surgical Physician Assistant Overview

How Kassondra Mellen, PHYSICIAN ASSISTANT fits within the Surgical Physician Assistant landscape nationally.

16,380
Surgical Physician Assistant Providers in US
54
States with Surgical Physician Assistant
341
Avg Claims per Provider

Kassondra Mellen, PHYSICIAN ASSISTANT's 11,639 claims are above the specialty average of 341.

Nationwide Surgical Physician Assistant peers with similar MIPS or enrollment year

Two federal-record peer sets for Mellen, both outside Arizona so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (78.8 here).

Emily Fernandez 78.8 NV Samantha Marr 78.8 FL Ivan Bennett 78.8 OH Kolleen Blankenship 78.8 OH

Same NPPES enumeration year (2008)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Raul Estrada San Diego, CA Melissa Conner Parkersburg, WV Audrey Bunch Warrenton, VA Erica Lin Orlando, FL

Nearby Surgical Physician Assistant Providers in Arizona

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

One of 444 Surgical Physician Assistant providers enrolled in Arizona, 5 are shown here.

Christopher Adams
PA
Tucson, AZ
Franchesca Alexander
P.A.-C
Mesa, AZ
Regan Alford
PAC
Phoenix, AZ
Dr. Aaron Allen
MD, SA-C
Gilbert, AZ
Diana Allen
PA-C
Tucson, AZ

Compare Surgical Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is Kassondra Mellen, PHYSICIAN ASSISTANT's specialty? ▼
Kassondra Mellen, PHYSICIAN ASSISTANT specializes in Surgical Physician Assistant and practices in Mesa, Arizona. Credentials: PHYSICIAN ASSISTANT.
How much does Kassondra Mellen, PHYSICIAN ASSISTANT prescribe under Medicare Part D? ▼
In 2024, Kassondra Mellen, PHYSICIAN ASSISTANT wrote 11,639 Medicare Part D claims totaling $798K in drug costs for 396 beneficiaries.
What is Kassondra Mellen, PHYSICIAN ASSISTANT's Medicare quality score? ▼
Kassondra Mellen, PHYSICIAN ASSISTANT has a CMS MIPS Final Score of 78.8/100 (Quality: 74.8, Cost: 62.8). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Kassondra Mellen, PHYSICIAN ASSISTANT located? ▼
Kassondra Mellen, PHYSICIAN ASSISTANT is located at 1432 S DOBSON RD STE 301, Mesa, AZ, 85202. Phone: (480) 464-9400.
What is Kassondra Mellen, PHYSICIAN ASSISTANT's NPI number? ▼
Kassondra Mellen, PHYSICIAN ASSISTANT's National Provider Identifier (NPI) is 1245418839, issued on 02/05/2008.
Does Kassondra Mellen, PHYSICIAN ASSISTANT prescribe more brand-name or generic drugs? ▼
Kassondra Mellen, PHYSICIAN ASSISTANT's prescribing is 11% brand-name and 87% generic drugs by claim count, with $573K in brand drug costs.
Does Kassondra Mellen, PHYSICIAN ASSISTANT prescribe opioids? ▼
Yes, Kassondra Mellen, PHYSICIAN ASSISTANT had 241 opioid claims in 2024 with an opioid prescribing rate of 2.1%.
How many Surgical Physician Assistant providers are there in the US? ▼
There are 16,380 Surgical Physician Assistant providers across 54 states in the US. The average Surgical Physician Assistant provider writes 341 Medicare Part D claims per year.
What drugs does Kassondra Mellen, PHYSICIAN ASSISTANT prescribe most often? ▼
Based on 2024 Medicare Part D data, Kassondra Mellen, PHYSICIAN ASSISTANT's most frequently prescribed drugs include Levothyroxine Sodium, Atorvastatin Calcium, Potassium Chloride. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kassondra Mellen, PHYSICIAN ASSISTANT accept Medicare? ▼
Kassondra Mellen, PHYSICIAN ASSISTANT appears in CMS Medicare data with 11,639 Part D claims and 396 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kassondra Mellen, PHYSICIAN ASSISTANT's credentials? ▼
Kassondra Mellen, PHYSICIAN ASSISTANT's NPI is 1245418839 with credentials PHYSICIAN ASSISTANT. 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

View source datasets and methodology notes
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 (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
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 August 2026 (NPPES) / 2024 (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

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.