2026 NPPES data Physician Assistant NPI 1164737532 PA
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PAUL RIOTTA, PA

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
253
Medicare Part D claims · 171 beneficiaries · Physician Assistant avg: 790
MIPS score
92.0962/100
▲ 9 pts above national avg 83.1 · [object Object]

What the federal data shows

PAUL RIOTTA, PA reported a CMS MIPS final score of 92.0962/100 — above the 83.1 national average — and filed 253 Medicare Part D claims in 2023.

92.0962/100
MIPS score · +9 vs avg
253
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.

PAUL RIOTTA, PA's MIPS score vs every scored U.S. clinician

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

92 Top 32% higher than 68% 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%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. 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 PAUL RIOTTA, PA?

High performer (top quartile)

NPI registry status

Active

Issued 08/10/2010

NPI 1164737532

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

253 68% vs specialty avg

2023 prescription claims

Specialty avg: 790

MIPS final score

92.0962/100 8.996200000000002% pts

Exceptional 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

PAUL RIOTTA, PA's 2023 MIPS final score plotted against the Physician Assistant national average

High performer (top quartile)
MIPS Final Score
92.0962/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Physician Assistant) — 92.0962/100 vs national avg 83.1

0%100%National avg83%92.1%
MIPS final score (Physician Assistant) — 92.0962/100 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).

PAUL RIOTTA, PA appears in the CMS NPPES registry as a Physician Assistant provider holding PA credentials at 2093 HENRY TECKLENBURG DR STE 200E, CHARLESTON, SC, 29414, with a listed phone of (843) 958-2500. NPI 1164737532 was issued on 08/10/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what RIOTTA 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 253 prescription claims written by this provider, covering 171 Medicare beneficiaries and totaling roughly $2K in drug spend, with an opioid prescribing rate of 6.7%. 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 92.0962/100 for the 2023 performance year (Quality 86.6074, Cost 87.88), 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

2093 HENRY TECKLENBURG DR STE 200E
CHARLESTON, SC 29414

Provider Details

NPI 1164737532
Specialty Physician Assistant
Credentials PA
Gender Male
NPI Issued 08/10/2010

CMS Quality Score (MIPS)

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

92.0962
Final Score
Avg: 83.1
86.6074
Quality
87.88
Cost
99
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where PAUL RIOTTA, 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.

ROPER SAINT FRANCIS PHYSICIANS NETWORK
N CHARLESTON, 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.

253
Total Claims
$2K
Total Drug Cost
171
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
253
Total Day Supply
2,034
Brand Drug Cost
$0
Generic Drug Cost
$2K
Opioid Claims
17 (6.7% rate)
Antibiotic Claims
18

Patient Demographics

Average Patient Age
73.4 years
Avg HCC Risk Score
0.93
Gender Split
58% female / 42% male

Top Prescribed Drugs (Medicare Part D)

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

What PAUL RIOTTA, 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
Methylprednisolone
79
Tizanidine Hcl
59
Naproxen
32
Baclofen
19
Cefadroxil
16
Etodolac
15
Tramadol Hcl
15

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

Physician Assistant Overview

How PAUL RIOTTA, 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

PAUL RIOTTA, PA's 253 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 RIOTTA.

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

Frequently Asked Questions

What is PAUL RIOTTA, PA's specialty?
PAUL RIOTTA, PA specializes in Physician Assistant and practices in CHARLESTON, South Carolina. Credentials: PA.
How much does PAUL RIOTTA, PA prescribe under Medicare Part D?
In 2023, PAUL RIOTTA, PA wrote 253 Medicare Part D claims totaling $2K in drug costs for 171 beneficiaries.
What is PAUL RIOTTA, PA's Medicare quality score?
PAUL RIOTTA, PA has a CMS MIPS Final Score of 92.0962/100 (Quality: 86.6074, Cost: 87.88). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is PAUL RIOTTA, PA located?
PAUL RIOTTA, PA is located at 2093 HENRY TECKLENBURG DR STE 200E, CHARLESTON, SC, 29414. Phone: (843) 958-2500.
What is PAUL RIOTTA, PA's NPI number?
PAUL RIOTTA, PA's National Provider Identifier (NPI) is 1164737532, issued on 08/10/2010.
Does PAUL RIOTTA, PA prescribe opioids?
Yes, PAUL RIOTTA, PA had 17 opioid claims in 2023 with an opioid prescribing rate of 6.7%.
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 PAUL RIOTTA, PA prescribe most often?
Based on 2023 Medicare Part D data, PAUL RIOTTA, PA's most frequently prescribed drugs include Methylprednisolone, Tizanidine Hcl, Naproxen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does PAUL RIOTTA, PA accept Medicare?
PAUL RIOTTA, PA appears in CMS Medicare data with 253 Part D claims and 171 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify PAUL RIOTTA, PA's credentials?
PAUL RIOTTA, PA's NPI is 1164737532 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