2026 NPPES data Physician Assistant NPI 1639309669 PA-C
Verify on CMS →

SHEENA CORTNER, PA-C

Physician Assistant in CRESTON, 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
3K
Medicare Part D claims · 328 beneficiaries · Physician Assistant avg: 790
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: SHEENA CORTNER, PA-C is a Physician Assistant ([object Object]) practicing in CRESTON, Iowa with a Medicare Part D prescribing footprint of 3K claims across 328 beneficiaries — 13% brand-name prescribing .

What stands out: SHEENA CORTNER, PA-C filed 2,607 Medicare Part D claims in 2023 across CRESTON, Iowa. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

SHEENA CORTNER, PA-C at a glance

Quality data not reported

NPI registry status

Active

Issued 07/24/2009

NPI 1639309669

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

2,607 230% 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).

SHEENA CORTNER, PA-C is a Physician Assistant provider practicing in CRESTON, Iowa, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA-C. NPI: 1639309669. 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.

SHEENA CORTNER, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 1700 W TOWNLINE ST, CRESTON, IA, 50801, with a listed phone of (641) 782-7091. NPI 1639309669 was issued on 07/24/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CORTNER 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 2,607 prescription claims written by this provider, covering 328 Medicare beneficiaries and totaling roughly $270K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 2.3%. 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

1700 W TOWNLINE ST
CRESTON, IA 50801

Provider Details

NPI 1639309669
Specialty Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 07/24/2009

Brand vs generic prescribing mix · Typical

SHEENA CORTNER, PA-C — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 2,607 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.

2,607
Total Claims
$270K
Total Drug Cost
328
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
5,112
Total Day Supply
147,300
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$222K
Generic Drug Cost
$47K
Opioid Claims
59 (2.3% rate)
Antibiotic Claims
69

Patient Demographics

Average Patient Age
74.6 years
Avg HCC Risk Score
1.19
Gender Split
72% female / 28% male
Age Distribution
<65: 28, 65-74: 138, 75-84: 117, 85+: 45

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Levothyroxine Sodium
134
Lisinopril
129
Amlodipine Besylate
95
Atorvastatin Calcium
86
Gabapentin
86
Rosuvastatin Calcium
85
Alendronate Sodium
75
Pantoprazole Sodium
70
Losartan Potassium
69
Omeprazole
59

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

Physician Assistant Overview

How SHEENA CORTNER, PA-C fits within the Physician Assistant landscape nationally.

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

SHEENA CORTNER, PA-C's 2,607 claims are above 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 CORTNER.

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

Frequently Asked Questions

What is SHEENA CORTNER, PA-C's specialty?
SHEENA CORTNER, PA-C specializes in Physician Assistant and practices in CRESTON, Iowa. Credentials: PA-C.
How much does SHEENA CORTNER, PA-C prescribe under Medicare Part D?
In 2023, SHEENA CORTNER, PA-C wrote 2,607 Medicare Part D claims totaling $270K in drug costs for 328 beneficiaries.
Where is SHEENA CORTNER, PA-C located?
SHEENA CORTNER, PA-C is located at 1700 W TOWNLINE ST, CRESTON, IA, 50801. Phone: (641) 782-7091.
What is SHEENA CORTNER, PA-C's NPI number?
SHEENA CORTNER, PA-C's National Provider Identifier (NPI) is 1639309669, issued on 07/24/2009.
Does SHEENA CORTNER, PA-C prescribe more brand-name or generic drugs?
SHEENA CORTNER, PA-C's prescribing is 13% brand-name and 87% generic drugs by claim count, with $222K in brand drug costs.
Does SHEENA CORTNER, PA-C prescribe opioids?
Yes, SHEENA CORTNER, PA-C had 59 opioid claims in 2023 with an opioid prescribing rate of 2.3%.
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 SHEENA CORTNER, PA-C prescribe most often?
Based on 2023 Medicare Part D data, SHEENA CORTNER, PA-C's most frequently prescribed drugs include Levothyroxine Sodium, Lisinopril, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SHEENA CORTNER, PA-C accept Medicare?
SHEENA CORTNER, PA-C appears in CMS Medicare data with 2,607 Part D claims and 328 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SHEENA CORTNER, PA-C's credentials?
SHEENA CORTNER, PA-C's NPI is 1639309669 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