2026 NPPES data Medical Physician Assistant NPI 1992945299 PA-C
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Ann Marie Chavez, PA-C

Medical Physician Assistant in Scottsdale, 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
3K
Medicare Part D claims · 349 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
73%
generic claims · 26% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$4.9K
233 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Ann Marie Chavez, PA-C filed 2,599 Medicare Part D claims in 2023 as a Medical Physician Assistant in Scottsdale, Arizona, prescribing 73% generic.

3K
Part D claims, 2023
73%
generic prescribing
$4.9K
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.

Ann Marie Chavez, PA-C's Medicare Part D volume vs every U.S. prescriber

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

2,599 Top 13% higher than 87% 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%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2K+: 213,991 prescribers (16%). This entry sits in this band. 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 Ann Marie Chavez, PA-C?

Quality data not reported

NPI registry status

Active

Issued 02/26/2009

NPI 1992945299

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

2,599 141% 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

Largest specialties in Arizona (% of in-state 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).

Ann Marie Chavez, PA-C appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C credentials at 7699 E PINNACLE PEAK RD STE 115, Scottsdale, AZ, 85255, with a listed phone of (480) 300-4663. NPI 1992945299 was issued on 02/26/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Chavez 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 2,599 prescription claims written by this provider, covering 349 Medicare beneficiaries and totaling roughly $635K in drug spend, split 26% brand-name and 73% generic by claim count, with an opioid prescribing rate of 0.5%. 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

7699 E PINNACLE PEAK RD STE 115
Scottsdale, AZ 85255

Provider Details

NPI 1992945299
Specialty Medical Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 02/26/2009

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 Ann Marie Chavez, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$4.9K

Largest payer

ABBVIE 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.

Brand vs generic prescribing mix · Above average

Ann Marie Chavez, PA-C - brand share 26.0%
Medical Physician Assistant average

26% brand-name claims vs 73% generic, on 2,599 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.

2,599
Total Claims
$635K
Total Drug Cost
349
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
5,637
Total Day Supply
164,096
Brand vs Generic
26% brand / 73% generic
Brand Drug Cost
$595K
Generic Drug Cost
$39K
Opioid Claims
14 (0.5% rate)
Antibiotic Claims
65

Patient Demographics

Average Patient Age
72.2 years
Avg HCC Risk Score
0.86
Gender Split
58% female / 42% male
Age Distribution
<65: 16, 65-74: 214, 75-84: 108, 85+: 11

Top Prescribed Drugs (Medicare Part D)

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

What Ann Marie Chavez, 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
202
Levothyroxine Sodium
201
Ozempic
Semaglutide
145
Olmesartan Medoxomil
99
Atorvastatin Calcium
89
Liothyronine Sodium
60
Amlodipine Besylate
57
Farxiga
Dapagliflozin Propanediol
53
Mounjaro
Tirzepatide
50
Trazodone Hcl
46

* 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 Ann Marie Chavez, 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

Ann Marie Chavez, PA-C's 2,599 claims are above 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 Chavez.

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 Ann Marie Chavez, PA-C's specialty?
Ann Marie Chavez, PA-C specializes in Medical Physician Assistant and practices in Scottsdale, Arizona. Credentials: PA-C.
How much does Ann Marie Chavez, PA-C prescribe under Medicare Part D?
In 2023, Ann Marie Chavez, PA-C wrote 2,599 Medicare Part D claims totaling $635K in drug costs for 349 beneficiaries.
Where is Ann Marie Chavez, PA-C located?
Ann Marie Chavez, PA-C is located at 7699 E PINNACLE PEAK RD STE 115, Scottsdale, AZ, 85255. Phone: (480) 300-4663.
What is Ann Marie Chavez, PA-C's NPI number?
Ann Marie Chavez, PA-C's National Provider Identifier (NPI) is 1992945299, issued on 02/26/2009.
Does Ann Marie Chavez, PA-C prescribe more brand-name or generic drugs?
Ann Marie Chavez, PA-C's prescribing is 26% brand-name and 73% generic drugs by claim count, with $595K in brand drug costs.
Does Ann Marie Chavez, PA-C prescribe opioids?
Yes, Ann Marie Chavez, PA-C had 14 opioid claims in 2023 with an opioid prescribing rate of 0.5%.
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 Ann Marie Chavez, PA-C prescribe most often?
Based on 2023 Medicare Part D data, Ann Marie Chavez, PA-C's most frequently prescribed drugs include Rosuvastatin Calcium, Levothyroxine Sodium, Ozempic. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ann Marie Chavez, PA-C accept Medicare?
Ann Marie Chavez, PA-C appears in CMS Medicare data with 2,599 Part D claims and 349 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ann Marie Chavez, PA-C's credentials?
Ann Marie Chavez, PA-C's NPI is 1992945299 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.