2026 NPPES data Medical Physician Assistant NPI 1174890172 PA-C
Verify on CMS →

CLAYTON GATTERDAM, PA-C

Medical Physician Assistant in LEXINGTON, Kentucky. 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
73
Medicare Part D claims · 46 beneficiaries · Medical Physician Assistant avg: 1K
MIPS score
80.8913/100
▼ 2 pts below national avg 83.1 · [object Object]

What the federal data shows

CLAYTON GATTERDAM, PA-C reported a CMS MIPS final score of 80.8913/100 — below the 83.1 national average — and filed 73 Medicare Part D claims in 2023.

80.8913/100
MIPS score · -2 vs avg
73
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.

CLAYTON GATTERDAM, PA-C's MIPS score vs every scored U.S. clinician

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

81 33rd percentile higher than 33% 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%). This entry sits in this band. 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 CLAYTON GATTERDAM, PA-C?

Near national average

NPI registry status

Active

Issued 11/19/2011

NPI 1174890172

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

73 93% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

MIPS final score

80.8913/100 2.2086999999999932% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Kentucky

How Medical Physician Assistant compares to other specialties among Kentucky providers

Kentucky providers

Medical Physician Assistant share within Kentucky

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

Medicare quality performance — MIPS

CLAYTON GATTERDAM, PA-C's 2023 MIPS final score plotted against the Medical Physician Assistant national average

Near national average
MIPS Final Score
80.8913/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Medical Physician Assistant) — 80.8913/100 vs national avg 83.1

0%100%National avg83%80.9%
MIPS final score (Medical Physician Assistant) — 80.8913/100 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).

CLAYTON GATTERDAM, PA-C appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C credentials at 700 BOB O LINK DR, LEXINGTON, KY, 40504, with a listed phone of (859) 258-8575. NPI 1174890172 was issued on 11/19/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GATTERDAM 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 73 prescription claims written by this provider, covering 46 Medicare beneficiaries and totaling roughly $3K 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 80.8913/100 for the 2023 performance year (Quality 62.297, Cost 74.0075), compared with the national average of 83.1.

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

700 BOB O LINK DR
LEXINGTON, KY 40504

Provider Details

NPI 1174890172
Specialty Medical Physician Assistant
Credentials PA-C
Gender Male
NPI Issued 11/19/2011

CMS Quality Score (MIPS)

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

80.8913
Final Score
Avg: 83.1
62.297
Quality
74.0075
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where CLAYTON GATTERDAM, 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.

H2 REHABILITATION SERVICES OF KENTUCKY, LLC
LONDON, KY

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.

73
Total Claims
$3K
Total Drug Cost
46
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
85
Total Day Supply
1,263
Generic Drug Cost
$914
Antibiotic Claims
24

Patient Demographics

Average Patient Age
64.2 years
Avg HCC Risk Score
2.17
Gender Split
54% female / 46% male
Age Distribution
<65: 17, 65-74: 21, 75-84: N/A, 85+: N/A

Medical Physician Assistant Overview

How CLAYTON GATTERDAM, 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

CLAYTON GATTERDAM, PA-C's 73 claims are below the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Kentucky

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

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

Frequently Asked Questions

What is CLAYTON GATTERDAM, PA-C's specialty?
CLAYTON GATTERDAM, PA-C specializes in Medical Physician Assistant and practices in LEXINGTON, Kentucky. Credentials: PA-C.
How much does CLAYTON GATTERDAM, PA-C prescribe under Medicare Part D?
In 2023, CLAYTON GATTERDAM, PA-C wrote 73 Medicare Part D claims totaling $3K in drug costs for 46 beneficiaries.
What is CLAYTON GATTERDAM, PA-C's Medicare quality score?
CLAYTON GATTERDAM, PA-C has a CMS MIPS Final Score of 80.8913/100 (Quality: 62.297, Cost: 74.0075). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is CLAYTON GATTERDAM, PA-C located?
CLAYTON GATTERDAM, PA-C is located at 700 BOB O LINK DR, LEXINGTON, KY, 40504. Phone: (859) 258-8575.
What is CLAYTON GATTERDAM, PA-C's NPI number?
CLAYTON GATTERDAM, PA-C's National Provider Identifier (NPI) is 1174890172, issued on 11/19/2011.
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.
Does CLAYTON GATTERDAM, PA-C accept Medicare?
CLAYTON GATTERDAM, PA-C appears in CMS Medicare data with 73 Part D claims and 46 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CLAYTON GATTERDAM, PA-C's credentials?
CLAYTON GATTERDAM, PA-C's NPI is 1174890172 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.
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