2026 NPPES data Physician Assistant NPI 1558747535
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JOSH WHIBLEY

Physician Assistant in 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
514
Medicare Part D claims · 228 beneficiaries · Physician Assistant avg: 790
MIPS score
73.8449/100
▼ 9 pts below national avg 83.1 · [object Object]

What the federal data shows

JOSH WHIBLEY reported a CMS MIPS final score of 73.8449/100 — below the 83.1 national average — and filed 514 Medicare Part D claims in 2023.

73.8449/100
MIPS score · -9 vs avg
514
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.

JOSH WHIBLEY's MIPS score vs every scored U.S. clinician

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

74 11th percentile higher than 11% 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 JOSH WHIBLEY?

Below national average

NPI registry status

Active

Issued 08/03/2015

NPI 1558747535

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

514 35% vs specialty avg

2023 prescription claims

Specialty avg: 790

MIPS final score

73.8449/100 9.255099999999999% 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

JOSH WHIBLEY's 2023 MIPS final score plotted against the Physician Assistant national average

Below national average
MIPS Final Score
73.8449/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Physician Assistant) — 73.8449/100 vs national avg 83.1

0%100%National avg83%73.8%
MIPS final score (Physician Assistant) — 73.8449/100 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).

JOSH WHIBLEY appears in the CMS NPPES registry as a Physician Assistant provider at 171 ASHLEY AVE, CHARLESTON, SC, 29425, with a listed phone of (843) 792-1414. NPI 1558747535 was issued on 08/03/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WHIBLEY 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 514 prescription claims written by this provider, covering 228 Medicare beneficiaries and totaling roughly $4K in drug spend, with an opioid prescribing rate of 31.7%. 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 73.8449/100 for the 2023 performance year (Quality 60.2834, Cost 53.3663), 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

171 ASHLEY AVE
CHARLESTON, SC 29425

Provider Details

NPI 1558747535
Specialty Physician Assistant
Gender Male
NPI Issued 08/03/2015

CMS Quality Score (MIPS)

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

73.8449
Final Score
Avg: 83.1
60.2834
Quality
53.3663
Cost
99
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where JOSH WHIBLEY 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 MEDICAL ASSOCIATES OF THE MEDICAL UNIVERSITY OF SOUTH CAROL
MOUNT PLEASANT, 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.

514
Total Claims
$4K
Total Drug Cost
228
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
533
Total Day Supply
10,184
Generic Drug Cost
$4K
Opioid Claims
163 (31.7% rate)
Antibiotic Claims
31

Patient Demographics

Average Patient Age
70.1 years
Avg HCC Risk Score
1.31
Gender Split
59% female / 41% male

Top Prescribed Drugs (Medicare Part D)

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

What JOSH WHIBLEY 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
Meloxicam
208
Tramadol Hcl
61
Oxycodone Hcl
54
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
35
Methylprednisolone
25
Celecoxib
22
Amoxicillin
19
Gabapentin
17
Diclofenac Sodium
11
Ibuprofen
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 JOSH WHIBLEY fits within the Physician Assistant landscape nationally.

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

JOSH WHIBLEY's 514 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 WHIBLEY.

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

Frequently Asked Questions

What is JOSH WHIBLEY's specialty?
JOSH WHIBLEY specializes in Physician Assistant and practices in CHARLESTON, South Carolina.
How much does JOSH WHIBLEY prescribe under Medicare Part D?
In 2023, JOSH WHIBLEY wrote 514 Medicare Part D claims totaling $4K in drug costs for 228 beneficiaries.
What is JOSH WHIBLEY's Medicare quality score?
JOSH WHIBLEY has a CMS MIPS Final Score of 73.8449/100 (Quality: 60.2834, Cost: 53.3663). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is JOSH WHIBLEY located?
JOSH WHIBLEY is located at 171 ASHLEY AVE, CHARLESTON, SC, 29425. Phone: (843) 792-1414.
What is JOSH WHIBLEY's NPI number?
JOSH WHIBLEY's National Provider Identifier (NPI) is 1558747535, issued on 08/03/2015.
Does JOSH WHIBLEY prescribe opioids?
Yes, JOSH WHIBLEY had 163 opioid claims in 2023 with an opioid prescribing rate of 31.7%.
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 JOSH WHIBLEY prescribe most often?
Based on 2023 Medicare Part D data, JOSH WHIBLEY's most frequently prescribed drugs include Meloxicam, Tramadol Hcl, Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOSH WHIBLEY accept Medicare?
JOSH WHIBLEY appears in CMS Medicare data with 514 Part D claims and 228 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOSH WHIBLEY's credentials?
JOSH WHIBLEY's NPI is 1558747535. 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