2026 NPPES data Medical Physician Assistant NPI 1871993352
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CHELSEA NIX

Medical Physician Assistant in GREENVILLE, Pennsylvania. 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
830
Medicare Part D claims · 387 beneficiaries · Medical Physician Assistant avg: 1K
MIPS score
78.5339/100
▼ 5 pts below national avg 83.1 · [object Object]

What the federal data shows

CHELSEA NIX reported a CMS MIPS final score of 78.5339/100 — below the 83.1 national average — and filed 830 Medicare Part D claims in 2023.

78.5339/100
MIPS score · -5 vs avg
830
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.

CHELSEA NIX's MIPS score vs every scored U.S. clinician

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

79 27th percentile higher than 27% 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 CHELSEA NIX?

Near national average

NPI registry status

Active

Issued 09/03/2014

NPI 1871993352

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

830 23% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

MIPS final score

78.5339/100 4.566099999999992% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Pennsylvania

How Medical Physician Assistant compares to other specialties among Pennsylvania providers

Pennsylvania providers

Medical Physician Assistant share within Pennsylvania

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

Medicare quality performance — MIPS

CHELSEA NIX's 2023 MIPS final score plotted against the Medical Physician Assistant national average

Near national average
MIPS Final Score
78.5339/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Medical Physician Assistant) — 78.5339/100 vs national avg 83.1

0%100%National avg83%78.5%
MIPS final score (Medical Physician Assistant) — 78.5339/100 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).

CHELSEA NIX appears in the CMS NPPES registry as a Medical Physician Assistant provider at 90 SHENANGO ST, GREENVILLE, PA, 16125, with a listed phone of (724) 589-4467. NPI 1871993352 was issued on 09/03/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what NIX 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 830 prescription claims written by this provider, covering 387 Medicare beneficiaries and totaling roughly $20K in drug spend, with an opioid prescribing rate of 2.7%. 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 78.5339/100 for the 2023 performance year (Quality 74.6181, Cost 53.8283), 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

90 SHENANGO ST
GREENVILLE, PA 16125

Provider Details

NPI 1871993352
Specialty Medical Physician Assistant
Gender Female
NPI Issued 09/03/2014

CMS Quality Score (MIPS)

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

78.5339
Final Score
Avg: 83.1
74.6181
Quality
53.8283
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where CHELSEA NIX 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.

UPMC COMMUNITY MEDICINE INC
PITTSBURGH, PA

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

License & disciplinary context — Pennsylvania PA-BOM 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~45K Pennsylvania medical licensees in 2023 — they are NOT specific to CHELSEA NIX. To verify CHELSEA NIX's current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases

PA-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Pennsylvania disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

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

830
Total Claims
$20K
Total Drug Cost
387
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,016
Total Day Supply
19,914
Generic Drug Cost
$7K
Opioid Claims
22 (2.7% rate)
Antibiotic Claims
268

Patient Demographics

Average Patient Age
74.6 years
Avg HCC Risk Score
1.32
Gender Split
61% female / 39% male
Age Distribution
<65: 38, 65-74: 163, 75-84: 132, 85+: 54

Top Prescribed Drugs (Medicare Part D)

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

What CHELSEA NIX 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
Doxycycline Hyclate
84
Azithromycin
53
Amoxicillin
47
Methylprednisolone
41
Lisinopril
36
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
30
Cephalexin
29
Sertraline Hcl
28
Fluticasone Propionate
26
Prednisone
25

* 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 CHELSEA NIX 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

CHELSEA NIX's 830 claims are below the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Pennsylvania

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

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

Frequently Asked Questions

What is CHELSEA NIX's specialty?
CHELSEA NIX specializes in Medical Physician Assistant and practices in GREENVILLE, Pennsylvania.
How much does CHELSEA NIX prescribe under Medicare Part D?
In 2023, CHELSEA NIX wrote 830 Medicare Part D claims totaling $20K in drug costs for 387 beneficiaries.
What is CHELSEA NIX's Medicare quality score?
CHELSEA NIX has a CMS MIPS Final Score of 78.5339/100 (Quality: 74.6181, Cost: 53.8283). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is CHELSEA NIX located?
CHELSEA NIX is located at 90 SHENANGO ST, GREENVILLE, PA, 16125. Phone: (724) 589-4467.
What is CHELSEA NIX's NPI number?
CHELSEA NIX's National Provider Identifier (NPI) is 1871993352, issued on 09/03/2014.
Does CHELSEA NIX prescribe opioids?
Yes, CHELSEA NIX had 22 opioid claims in 2023 with an opioid prescribing rate of 2.7%.
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 CHELSEA NIX prescribe most often?
Based on 2023 Medicare Part D data, CHELSEA NIX's most frequently prescribed drugs include Doxycycline Hyclate, Azithromycin, Amoxicillin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHELSEA NIX accept Medicare?
CHELSEA NIX appears in CMS Medicare data with 830 Part D claims and 387 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHELSEA NIX's credentials?
CHELSEA NIX's NPI is 1871993352. 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