2026 NPPES data Medical Physician Assistant NPI 1568483006 PA-C
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Martha Ellis, PA-C

Medical Physician Assistant in Phoenix, 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 40,527 in Medical 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
535
Medicare Part D claims · 108 beneficiaries · Medical Physician Assistant avg: 1K
Industry payments
$343.79
13 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Martha Ellis, PA-C filed 535 Medicare Part D claims in 2023 as a Medical Physician Assistant in Phoenix, Arizona.

535
Part D claims, 2023
$343.79
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.

Martha Ellis, PA-C's Medicare Part D volume vs every U.S. prescriber

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

535 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. 2K+: 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 Martha Ellis, PA-C?

Quality data not reported

NPI registry status

Active

Issued 07/21/2006

NPI 1568483006

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

535 50% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in Arizona

How Medical Physician Assistant compares to other specialties among Arizona providers

Arizona providers
Pharmacist - 5.6%Pharmacist5.6%Behavior Technician - 5.6%Behavior Technician5.6%Family Nurse Practitioner - 4.3%Family Nurse Practitioner4.3%Physical Therapist - 4.2%Physical Therapist4.2%Speech-Language Pathologist - 3.5%Speech-Language Pathologist3.5%Student in an Organized Health Care Education/Training Program - 3.5%Student in an Organized Health Care Education/Training Program3.5%Medical Physician Assistant - 0.9%Medical Physician Assistant0.9%
Largest specialties in Arizona (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Medical Physician Assistant. Verify directly:

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).

Martha Ellis, PA-C appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C credentials at 4455 E CAMELBACK RD STE D155, Phoenix, AZ, 85018, with a listed phone of (480) 626-2444. NPI 1568483006 was issued on 07/21/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Ellis 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 535 prescription claims written by this provider, covering 108 Medicare beneficiaries and totaling roughly $55K in drug spend, with an opioid prescribing rate of 3.4%. 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.

Medical Physician Assistant is a mid-sized specialty nationwide, with 40,527 enrolled providers across 55 states and an average of 1,077 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

4455 E CAMELBACK RD STE D155
Phoenix, AZ 85018

Provider Details

NPI 1568483006
Specialty Medical Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 07/21/2006

Hospital and facility affiliations

Facilities where Martha Ellis, PA-C 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.

Forte - Phoenix PLLC
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).

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 Martha Ellis, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$344

Largest payer

Novo Nordisk 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.

535
Total Claims
$55K
Total Drug Cost
108
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
891
Total Day Supply
25,856
Generic Drug Cost
$7K
Opioid Claims
18 (3.4% rate)

Patient Demographics

Average Patient Age
72.9 years
Avg HCC Risk Score
1.16
Gender Split
47% female / 53% male

Top Prescribed Drugs (Medicare Part D)

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

What Martha Ellis, PA-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
Rosuvastatin Calcium
38
Levothyroxine Sodium
30
Metformin Hcl
30
Amlodipine Besylate
22
Metoprolol Tartrate
18
Losartan Potassium
15
Atorvastatin Calcium
14
Fenofibrate
13
Furosemide
12
Januvia
Sitagliptin Phosphate
12

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

Medical Physician Assistant Overview

How Martha Ellis, PA-C fits within the Medical Physician Assistant landscape nationally.

40,527
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider

Martha Ellis, PA-C's 535 claims are below the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Arizona

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

Compare Medical Physician Assistant 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 Medical Physician Assistant 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 Martha Ellis, PA-C's specialty?
Martha Ellis, PA-C specializes in Medical Physician Assistant and practices in Phoenix, Arizona. Credentials: PA-C.
How much does Martha Ellis, PA-C prescribe under Medicare Part D?
In 2023, Martha Ellis, PA-C wrote 535 Medicare Part D claims totaling $55K in drug costs for 108 beneficiaries.
Where is Martha Ellis, PA-C located?
Martha Ellis, PA-C is located at 4455 E CAMELBACK RD STE D155, Phoenix, AZ, 85018. Phone: (480) 626-2444.
What is Martha Ellis, PA-C's NPI number?
Martha Ellis, PA-C's National Provider Identifier (NPI) is 1568483006, issued on 07/21/2006.
Does Martha Ellis, PA-C prescribe opioids?
Yes, Martha Ellis, PA-C had 18 opioid claims in 2023 with an opioid prescribing rate of 3.4%.
How many Medical Physician Assistant providers are there in the US?
There are 40,527 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,077 Medicare Part D claims per year.
What drugs does Martha Ellis, PA-C prescribe most often?
Based on 2023 Medicare Part D data, Martha Ellis, PA-C's most frequently prescribed drugs include Rosuvastatin Calcium, Levothyroxine Sodium, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Martha Ellis, PA-C accept Medicare?
Martha Ellis, PA-C appears in CMS Medicare data with 535 Part D claims and 108 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Martha Ellis, PA-C's credentials?
Martha Ellis, PA-C's NPI is 1568483006 with credentials PA-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

Compiled from official public sources by the PlainDoctor editorial team.