2026 NPPES data Physician Assistant NPI 1679501118 PA
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MARY DECKER, PA

Physician Assistant in NORTH CHARLESTON, South Carolina. 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
355
Medicare Part D claims · 202 beneficiaries · Physician Assistant avg: 790
MIPS score
70.053/100
▼ 13 pts below national avg 83.1 · [object Object]

What the federal data shows

MARY DECKER, PA reported a CMS MIPS final score of 70.053/100 — below the 83.1 national average — and filed 355 Medicare Part D claims in 2023.

70.053/100
MIPS score · -13 vs avg
355
Part D claims, 2023

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.

MARY DECKER, PA's MIPS score vs every scored U.S. clinician

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

70 8th percentile higher than 8% 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%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 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

What does the federal data show about MARY DECKER, PA?

Below national average

NPI registry status

Active

Issued 06/30/2006

NPI 1679501118

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

355 55% vs specialty avg

2023 prescription claims

Specialty avg: 790

MIPS final score

70.053/100 13.046999999999997% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in South Carolina

How Physician Assistant compares to other specialties among South Carolina providers

South Carolina providers

Physician Assistant share within South Carolina

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

Medicare quality performance — MIPS

MARY DECKER, PA's 2023 MIPS final score plotted against the Physician Assistant national average

Below national average
MIPS Final Score
70.053/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Physician Assistant) — 70.053/100 vs national avg 83.1

0%100%National avg83%70.1%
MIPS final score (Physician Assistant) — 70.053/100 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).

MARY DECKER, PA appears in the CMS NPPES registry as a Physician Assistant provider holding PA credentials at 8091 RIVERS AVE, NORTH CHARLESTON, SC, 29406, with a listed phone of (843) 572-7000. NPI 1679501118 was issued on 06/30/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DECKER 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 355 prescription claims written by this provider, covering 202 Medicare beneficiaries and totaling roughly $11K in drug spend. 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 70.053/100 for the 2023 performance year (Quality 48.2211, Cost 53.6223), 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

8091 RIVERS AVE
NORTH CHARLESTON, SC 29406

Provider Details

NPI 1679501118
Specialty Physician Assistant
Credentials PA
Gender Female
NPI Issued 06/30/2006

CMS Quality Score (MIPS)

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

70.053
Final Score
Avg: 83.1
48.2211
Quality
53.6223
Cost
98
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where MARY DECKER, 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.

CHARLESTON CARENOW URGENT CARE LLC
GOOSE CREEK, SC

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

355
Total Claims
$11K
Total Drug Cost
202
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
434
Total Day Supply
7,174
Generic Drug Cost
$3K
Antibiotic Claims
105

Patient Demographics

Average Patient Age
69.4 years
Avg HCC Risk Score
1.06
Gender Split
72% female / 28% male
Age Distribution
<65: 40, 65-74: 121, 75-84: 30, 85+: 11

Top Prescribed Drugs (Medicare Part D)

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

What MARY DECKER, 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
Prednisone
57
Amoxicillin
33
Albuterol Sulfate Hfa
Albuterol Sulfate
25
Doxycycline Hyclate
16
Fluconazole
12
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
11

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

Physician Assistant Overview

How MARY DECKER, 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

MARY DECKER, PA's 355 claims are below the specialty average of 790.

Nearby Physician Assistant Providers in South Carolina

Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as DECKER.

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

Frequently Asked Questions

What is MARY DECKER, PA's specialty?
MARY DECKER, PA specializes in Physician Assistant and practices in NORTH CHARLESTON, South Carolina. Credentials: PA.
How much does MARY DECKER, PA prescribe under Medicare Part D?
In 2023, MARY DECKER, PA wrote 355 Medicare Part D claims totaling $11K in drug costs for 202 beneficiaries.
What is MARY DECKER, PA's Medicare quality score?
MARY DECKER, PA has a CMS MIPS Final Score of 70.053/100 (Quality: 48.2211, Cost: 53.6223). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MARY DECKER, PA located?
MARY DECKER, PA is located at 8091 RIVERS AVE, NORTH CHARLESTON, SC, 29406. Phone: (843) 572-7000.
What is MARY DECKER, PA's NPI number?
MARY DECKER, PA's National Provider Identifier (NPI) is 1679501118, issued on 06/30/2006.
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 MARY DECKER, PA prescribe most often?
Based on 2023 Medicare Part D data, MARY DECKER, PA's most frequently prescribed drugs include Prednisone, Amoxicillin, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARY DECKER, PA accept Medicare?
MARY DECKER, PA appears in CMS Medicare data with 355 Part D claims and 202 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARY DECKER, PA's credentials?
MARY DECKER, PA's NPI is 1679501118 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.
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