2026 NPPES data Physician Assistant NPI 1659889004
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Amanda Berg

Physician Assistant in Oro Valley, 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 149,975 in 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
4K
Medicare Part D claims · 537 beneficiaries · Physician Assistant avg: 790
Generic prescribing
84%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
38.3/100
▼ 45 pts below national avg 83.1 · Below average
Industry payments
$401.82
15 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Amanda Berg reported a CMS MIPS final score of 38.3/100 - below the 83.1 national average - and filed 4,155 Medicare Part D claims in 2023.

38.3/100
MIPS score · -45 vs avg
4K
Part D claims, 2023
84%
generic prescribing
$401.82
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.

Amanda Berg's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure

38 4th percentile higher than 4% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). This entry sits in this band. 40–50: 2,928 scored providers (1%). Above this entry. 50–60: 5,882 scored providers (1%). Above this entry. 60–70: 13,906 scored providers (3%). Above this entry. 70–80: 118,074 scored providers (25%). Above this entry. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored 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.

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

Where Amanda Berg sits

This provider among physician assistant peers

Across the 27,054 physician assistant providers who report both Medicare Part D prescribing and a MIPS quality score, Amanda Berg writes more Part D claims than 97% of them and scores higher on MIPS quality than 1% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 37Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 35Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 33Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 2Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 93Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 42Amanda Berg-Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 1
Part D claim volume vs MIPS quality, by specialty percentile

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

What does the federal data show about Amanda Berg?

Below national average

NPI registry status

Active

Issued 01/19/2018

NPI 1659889004

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

4,155 vs specialty avg

2023 prescription claims

Specialty avg: 790

MIPS final score

38.3/100 44.8 pts vs avg

Below average band

vs 83.1 national avg

Specialty distribution in Arizona

How 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%Physician Assistant - 2.7%Physician Assistant2.7%
Largest specialties in Arizona (% of in-state providers)

Medicare quality performance, MIPS

Amanda Berg's 2023 MIPS final score plotted against the Physician Assistant national average

Below national average
MIPS Final Score
38.3/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Physician Assistant) - 38.3/100 vs national avg 83.1

0%100%National avg83%38.3%
MIPS final score (Physician Assistant) - 38.3/100 vs national avg 83.1

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).

Amanda Berg appears in the CMS NPPES registry as a Physician Assistant provider at 10370 N LA CANADA DR STE 150, Oro Valley, AZ, 85737, with a listed phone of (520) 544-4100. NPI 1659889004 was issued on 01/19/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Berg 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 4,155 prescription claims written by this provider, covering 537 Medicare beneficiaries and totaling roughly $562K in drug spend, split 15% brand-name and 84% generic by claim count, with an opioid prescribing rate of 0.9%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 38.3/100 for the 2023 performance year (Quality 25.3, Cost 56.3), compared with the national average of 83.1.

Physician Assistant is a high-volume specialty nationwide, with 149,975 enrolled providers across 56 states and an average of 790 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

10370 N LA CANADA DR STE 150
Oro Valley, AZ 85737

Provider Details

NPI 1659889004
Specialty Physician Assistant
Gender Female
NPI Issued 01/19/2018

CMS Quality Score (MIPS)

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

38.3115
Final Score
Avg: 83.1
25.3293
Quality
56.2679
Cost

Reporting: Group practice

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 Amanda Berg. Source: openpaymentsdata.cms.gov.

Total received

$402

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.

Brand vs generic prescribing mix · Typical

Amanda Berg - brand share 15.0%
Physician Assistant average

15% brand-name claims vs 84% generic, on 4,155 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.

4,155
Total Claims
$562K
Total Drug Cost
537
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
10,300
Total Day Supply
301,266
Brand vs Generic
15% brand / 84% generic
Brand Drug Cost
$430K
Generic Drug Cost
$131K
Opioid Claims
36 (0.9% rate)
Antibiotic Claims
98

Patient Demographics

Average Patient Age
73.3 years
Avg HCC Risk Score
0.91
Gender Split
67% female / 33% male
Age Distribution
<65: 32, 65-74: 295, 75-84: 162, 85+: 48

Top Prescribed Drugs (Medicare Part D)

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

What Amanda Berg 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
Levothyroxine Sodium
298
Atorvastatin Calcium
278
Lisinopril
150
Losartan Potassium
138
Rosuvastatin Calcium
132
Amlodipine Besylate
97
Gabapentin
87
Hydrochlorothiazide
82
Omeprazole
77
Simvastatin
74

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

Physician Assistant Overview

How Amanda Berg fits within the Physician Assistant landscape nationally.

149,975
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider

Amanda Berg's 4,155 claims are above the specialty average of 790.

Nearby Physician Assistant Providers in Arizona

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

Compare 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 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 Amanda Berg's specialty?
Amanda Berg specializes in Physician Assistant and practices in Oro Valley, Arizona.
How much does Amanda Berg prescribe under Medicare Part D?
In 2023, Amanda Berg wrote 4,155 Medicare Part D claims totaling $562K in drug costs for 537 beneficiaries.
What is Amanda Berg's Medicare quality score?
Amanda Berg has a CMS MIPS Final Score of 38.3/100 (Quality: 25.3, Cost: 56.3). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Amanda Berg located?
Amanda Berg is located at 10370 N LA CANADA DR STE 150, Oro Valley, AZ, 85737. Phone: (520) 544-4100.
What is Amanda Berg's NPI number?
Amanda Berg's National Provider Identifier (NPI) is 1659889004, issued on 01/19/2018.
Does Amanda Berg prescribe more brand-name or generic drugs?
Amanda Berg's prescribing is 15% brand-name and 84% generic drugs by claim count, with $430K in brand drug costs.
Does Amanda Berg prescribe opioids?
Yes, Amanda Berg had 36 opioid claims in 2023 with an opioid prescribing rate of 0.9%.
How many Physician Assistant providers are there in the US?
There are 149,975 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does Amanda Berg prescribe most often?
Based on 2023 Medicare Part D data, Amanda Berg's most frequently prescribed drugs include Levothyroxine Sodium, Atorvastatin Calcium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Amanda Berg accept Medicare?
Amanda Berg appears in CMS Medicare data with 4,155 Part D claims and 537 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Amanda Berg's credentials?
Amanda Berg's NPI is 1659889004. 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.
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 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.