2026 NPPES data Physician Assistant NPI 1568553584 PA
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ALISSA LILLA, PA

Physician Assistant in WEST DES MOINES, Iowa. 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
145
Medicare Part D claims · 29 beneficiaries · Physician Assistant avg: 790
Generic prescribing
68%
generic claims · 32% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$161.13
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ALISSA LILLA, PA filed 145 Medicare Part D claims in 2023 as a Physician Assistant in WEST DES MOINES, Iowa, prescribing 68% generic.

145
Part D claims, 2023
68%
generic prescribing
$161.13
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.

ALISSA LILLA, PA's Medicare Part D volume vs every U.S. prescriber

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

145 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 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. 2,000–2,200: 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 ALISSA LILLA, PA?

Quality data not reported

NPI registry status

Active

Issued 09/27/2006

NPI 1568553584

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

145 82% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in Iowa

How Physician Assistant compares to other specialties among Iowa providers

Iowa providers

Physician Assistant share within Iowa

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

Specialty board-certification context

Estimated specialty board-certified rate — Physician Assistant (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Physician Assistant ABMS/AOA estimate

Est. board-certified rate (Physician Assistant) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Physician Assistant) — ABMS / AOA estimate

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).

ALISSA LILLA, PA appears in the CMS NPPES registry as a Physician Assistant provider holding PA credentials at 6600 WESTOWN PKWY, WEST DES MOINES, IA, 50266, with a listed phone of (515) 241-2250. NPI 1568553584 was issued on 09/27/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LILLA 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 145 prescription claims written by this provider, covering 29 Medicare beneficiaries and totaling roughly $64K in drug spend, split 32% brand-name and 68% 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.

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

6600 WESTOWN PKWY
WEST DES MOINES, IA 50266

Provider Details

NPI 1568553584
Specialty Physician Assistant
Credentials PA
Gender Female
NPI Issued 09/27/2006

Hospital and facility affiliations

Facilities where ALISSA LILLA, PA 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.

IOWA PHYSICIANS CLINIC MEDICAL FOUNDATION
GRIMES, IA

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 ALISSA LILLA, PA. Source: openpaymentsdata.cms.gov.

Total received

$161

Largest payer

Phathom Pharmaceuticals, 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

ALISSA LILLA, PA — brand share 32.0%
Specialty average (est.)

32% brand-name claims vs 68% generic, on 145 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.

145
Total Claims
$64K
Total Drug Cost
29
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
259
Total Day Supply
7,567
Brand vs Generic
32% brand / 68% generic
Brand Drug Cost
$62K
Generic Drug Cost
$2K

Patient Demographics

Average Patient Age
58.8 years
Avg HCC Risk Score
1.37
Age Distribution
<65: 15, 65-74: 14, 75-84: 0, 85+: 0

Top Prescribed Drugs (Medicare Part D)

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

What ALISSA LILLA, PA 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
Ozempic
Semaglutide
41
Omeprazole
18
Famotidine
16
Metoclopramide Hcl
15
Topiramate
13

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

Physician Assistant Overview

How ALISSA LILLA, PA fits within the Physician Assistant landscape nationally.

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

ALISSA LILLA, PA's 145 claims are below the specialty average of 790.

Nearby Physician Assistant Providers in Iowa

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

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

Frequently Asked Questions

What is ALISSA LILLA, PA's specialty?
ALISSA LILLA, PA specializes in Physician Assistant and practices in WEST DES MOINES, Iowa. Credentials: PA.
How much does ALISSA LILLA, PA prescribe under Medicare Part D?
In 2023, ALISSA LILLA, PA wrote 145 Medicare Part D claims totaling $64K in drug costs for 29 beneficiaries.
Where is ALISSA LILLA, PA located?
ALISSA LILLA, PA is located at 6600 WESTOWN PKWY, WEST DES MOINES, IA, 50266. Phone: (515) 241-2250.
What is ALISSA LILLA, PA's NPI number?
ALISSA LILLA, PA's National Provider Identifier (NPI) is 1568553584, issued on 09/27/2006.
Does ALISSA LILLA, PA prescribe more brand-name or generic drugs?
ALISSA LILLA, PA's prescribing is 32% brand-name and 68% generic drugs by claim count, with $62K in brand drug costs.
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 ALISSA LILLA, PA prescribe most often?
Based on 2023 Medicare Part D data, ALISSA LILLA, PA's most frequently prescribed drugs include Ozempic, Omeprazole, Famotidine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ALISSA LILLA, PA accept Medicare?
ALISSA LILLA, PA appears in CMS Medicare data with 145 Part D claims and 29 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ALISSA LILLA, PA's credentials?
ALISSA LILLA, PA's NPI is 1568553584 with credentials PA. 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