2026 NPPES data Medical Physician Assistant NPI 1508814351 PAC
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SARAH AFFELDT, PAC

Medical Physician Assistant in MADISON, Wisconsin. 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
866
Medicare Part D claims · 51 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
45%
generic claims · 55% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
77.4384/100
▼ 6 pts below national avg 83.1 · [object Object]
What the federal data reveals: SARAH AFFELDT, PAC is a Medical Physician Assistant ([object Object]) practicing in MADISON, Wisconsin with a Medicare Part D prescribing footprint of 866 claims across 51 beneficiaries — 55% brand-name prescribing . Their CMS MIPS Final Score of 77.4384/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: SARAH AFFELDT, PAC reported a CMS MIPS final score of 77.4384 out of 100, below the 83.1 national average, and filed 866 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

SARAH AFFELDT, PAC at a glance

Below national average

NPI registry status

Active

Issued 05/04/2006

NPI 1508814351

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

866 20% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

MIPS final score

77.4384/100 5.661599999999993% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Wisconsin

How Medical Physician Assistant compares to other specialties among Wisconsin providers

Wisconsin providers

Medical Physician Assistant share within Wisconsin

1. Medical Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Medical Physician Assistant share within Wisconsin

Medicare quality performance — MIPS

SARAH AFFELDT, PAC's 2023 MIPS final score plotted against the Medical Physician Assistant national average

Below national average
MIPS Final Score
77.4384/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Medical Physician Assistant) — 77.4384/100 vs national avg 83.1

0%100%National avg83%77.4%
MIPS final score (Medical Physician Assistant) — 77.4384/100 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).

SARAH AFFELDT, PAC is a Medical Physician Assistant provider practicing in MADISON, Wisconsin, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PAC. NPI: 1508814351. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

SARAH AFFELDT, PAC appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PAC credentials at 600 HIGHLAND AVENUE, MADISON, WI, 53792, with a listed phone of (608) 263-0946. NPI 1508814351 was issued on 05/04/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what AFFELDT 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 866 prescription claims written by this provider, covering 51 Medicare beneficiaries and totaling roughly $1.4 million in drug spend, split 55% brand-name and 45% generic by claim count. 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 77.4384/100 for the 2023 performance year (Quality 81.8371, Cost 62.1241), compared with the national average of 83.1.

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

600 HIGHLAND AVENUE
MADISON, WI 53792

Provider Details

NPI 1508814351
Specialty Medical Physician Assistant
Credentials PAC
Gender Female
NPI Issued 05/04/2006

CMS Quality Score (MIPS)

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

77.4384
Final Score
Avg: 83.1
81.8371
Quality
62.1241
Cost
77
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where SARAH AFFELDT, PAC 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.

UNIVERSITY OF WISCONSIN MEDICAL FOUNDATION INC
MADISON, WI

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 · Brand-heavy

SARAH AFFELDT, PAC — brand share 55.0%
Specialty average (est.)

55% brand-name claims vs 45% generic, on 866 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.

866
Total Claims
$1.4M
Total Drug Cost
51
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,075
Total Day Supply
31,671
Brand vs Generic
55% brand / 45% generic
Brand Drug Cost
$1.4M
Generic Drug Cost
$22K
Antibiotic Claims
27

Patient Demographics

Average Patient Age
58.4 years
Avg HCC Risk Score
2.08
Age Distribution
<65: 34, 65-74: 13, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Biktarvy
Bictegrav/Emtricit/Tenofov Ala
110
Descovy
Emtricitabine/Tenofov Alafenam
109
Tivicay
Dolutegravir Sodium
65
Lisinopril
46
Atorvastatin Calcium
39
Dovato
Dolutegravir Sodium/Lamivudine
34
Pifeltro
Doravirine
34
Acyclovir
26
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
26
Ezetimibe
24

* 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 SARAH AFFELDT, PAC 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

SARAH AFFELDT, PAC's 866 claims are below the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Wisconsin

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

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

Frequently Asked Questions

What is SARAH AFFELDT, PAC's specialty?
SARAH AFFELDT, PAC specializes in Medical Physician Assistant and practices in MADISON, Wisconsin. Credentials: PAC.
How much does SARAH AFFELDT, PAC prescribe under Medicare Part D?
In 2023, SARAH AFFELDT, PAC wrote 866 Medicare Part D claims totaling $1.4M in drug costs for 51 beneficiaries.
What is SARAH AFFELDT, PAC's Medicare quality score?
SARAH AFFELDT, PAC has a CMS MIPS Final Score of 77.4384/100 (Quality: 81.8371, Cost: 62.1241). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is SARAH AFFELDT, PAC located?
SARAH AFFELDT, PAC is located at 600 HIGHLAND AVENUE, MADISON, WI, 53792. Phone: (608) 263-0946.
What is SARAH AFFELDT, PAC's NPI number?
SARAH AFFELDT, PAC's National Provider Identifier (NPI) is 1508814351, issued on 05/04/2006.
Does SARAH AFFELDT, PAC prescribe more brand-name or generic drugs?
SARAH AFFELDT, PAC's prescribing is 55% brand-name and 45% generic drugs by claim count, with $1.4M in brand drug costs.
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 SARAH AFFELDT, PAC prescribe most often?
Based on 2023 Medicare Part D data, SARAH AFFELDT, PAC's most frequently prescribed drugs include Biktarvy, Descovy, Tivicay. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SARAH AFFELDT, PAC accept Medicare?
SARAH AFFELDT, PAC appears in CMS Medicare data with 866 Part D claims and 51 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SARAH AFFELDT, PAC's credentials?
SARAH AFFELDT, PAC's NPI is 1508814351 with credentials PAC. 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