2026 NPPES data Medical Physician Assistant NPI 1811459449 PA-C
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LYNDSEY DAY, PA-C

Medical Physician Assistant in SEMMES, Alabama. 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
543
Medicare Part D claims · 402 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
97%
generic claims · 3% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

LYNDSEY DAY, PA-C filed 543 Medicare Part D claims in 2023 as a Medical Physician Assistant in SEMMES, Alabama, prescribing 97% generic.

543
Part D claims, 2023
97%
generic prescribing

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.

LYNDSEY DAY, PA-C's Medicare Part D volume vs every U.S. prescriber

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

543 Top 34% higher than 66% 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%). This entry sits in this band. 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 LYNDSEY DAY, PA-C?

Quality data not reported

NPI registry status

Active

Issued 04/02/2019

NPI 1811459449

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

543 50% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in Alabama

How Medical Physician Assistant compares to other specialties among Alabama providers

Alabama providers

Medical Physician Assistant share within Alabama

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Medical 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).

LYNDSEY DAY, PA-C is a Medical Physician Assistant provider practicing in SEMMES, Alabama, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA-C. NPI: 1811459449. 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.

LYNDSEY DAY, PA-C appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C credentials at 7943 MOFFETT RD, SEMMES, AL, 36575, with a listed phone of (251) 633-0123. NPI 1811459449 was issued on 04/02/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DAY 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 543 prescription claims written by this provider, covering 402 Medicare beneficiaries and totaling roughly $9K in drug spend, split 3% brand-name and 97% 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.

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

7943 MOFFETT RD
SEMMES, AL 36575

Provider Details

NPI 1811459449
Specialty Medical Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 04/02/2019

Hospital and facility affiliations

Facilities where LYNDSEY DAY, PA-C 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.

GMUC OF SPRINGHILL LLC
MOBILE, AL
GREATER MOBILE URGENT CARE
MOBILE, AL

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 · Generic-heavy

LYNDSEY DAY, PA-C — brand share 3.0%
Specialty average (est.)

3% brand-name claims vs 97% generic, on 543 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.

543
Total Claims
$9K
Total Drug Cost
402
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
547
Total Day Supply
5,147
Brand vs Generic
3% brand / 97% generic
Brand Drug Cost
$1K
Generic Drug Cost
$6K
Antibiotic Claims
267

Patient Demographics

Average Patient Age
71.6 years
Avg HCC Risk Score
1.09
Gender Split
67% female / 33% male
Age Distribution
<65: 50, 65-74: 200, 75-84: 122, 85+: 30

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Doxycycline Hyclate
106
Cefdinir
46
Fluticasone Propionate
44
Lagevrio (Eua)
Molnupiravir
42
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
24
Amoxicillin
23
Mupirocin
21
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
21
Prednisone
20
Azithromycin
19

* 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 LYNDSEY DAY, 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

LYNDSEY DAY, PA-C's 543 claims are below the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Alabama

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

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

Frequently Asked Questions

What is LYNDSEY DAY, PA-C's specialty?
LYNDSEY DAY, PA-C specializes in Medical Physician Assistant and practices in SEMMES, Alabama. Credentials: PA-C.
How much does LYNDSEY DAY, PA-C prescribe under Medicare Part D?
In 2023, LYNDSEY DAY, PA-C wrote 543 Medicare Part D claims totaling $9K in drug costs for 402 beneficiaries.
Where is LYNDSEY DAY, PA-C located?
LYNDSEY DAY, PA-C is located at 7943 MOFFETT RD, SEMMES, AL, 36575. Phone: (251) 633-0123.
What is LYNDSEY DAY, PA-C's NPI number?
LYNDSEY DAY, PA-C's National Provider Identifier (NPI) is 1811459449, issued on 04/02/2019.
Does LYNDSEY DAY, PA-C prescribe more brand-name or generic drugs?
LYNDSEY DAY, PA-C's prescribing is 3% brand-name and 97% generic drugs by claim count, with $1K 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 LYNDSEY DAY, PA-C prescribe most often?
Based on 2023 Medicare Part D data, LYNDSEY DAY, PA-C's most frequently prescribed drugs include Doxycycline Hyclate, Cefdinir, Fluticasone Propionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LYNDSEY DAY, PA-C accept Medicare?
LYNDSEY DAY, PA-C appears in CMS Medicare data with 543 Part D claims and 402 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LYNDSEY DAY, PA-C's credentials?
LYNDSEY DAY, PA-C's NPI is 1811459449 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