2026 NPPES data Physician Assistant NPI 1043622277 PA-C
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KRISTA CARTER, PA-C

Physician Assistant in O FALLON, Missouri. 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
93
Medicare Part D claims · 21 beneficiaries · Physician Assistant avg: 790
What the federal data reveals: KRISTA CARTER, PA-C is a Physician Assistant ([object Object]) practicing in O FALLON, Missouri with a Medicare Part D prescribing footprint of 93 claims across 21 beneficiaries .

What stands out: KRISTA CARTER, PA-C filed 93 Medicare Part D claims in 2023 across O FALLON, Missouri. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

KRISTA CARTER, PA-C at a glance

Quality data not reported

NPI registry status

Active

Issued 05/22/2014

NPI 1043622277

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

93 88% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in Missouri

How Physician Assistant compares to other specialties among Missouri providers

Missouri providers

Physician Assistant share within Missouri

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

Specialty board-certification context

Estimated specialty board-certified rate — Physician Assistant (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Physician Assistant ABMS/AOA estimate

Est. board-certified rate (Physician Assistant) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Physician Assistant) — ABMS / AOA estimate

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).

KRISTA CARTER, PA-C is a Physician Assistant provider practicing in O FALLON, Missouri, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA-C. NPI: 1043622277. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

KRISTA CARTER, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 7068 S OUTER 364, O FALLON, MO, 63368, with a listed phone of (636) 240-6100. NPI 1043622277 was issued on 05/22/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CARTER 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 93 prescription claims written by this provider, covering 21 Medicare beneficiaries and totaling roughly $4K 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.

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

7068 S OUTER 364
O FALLON, MO 63368

Provider Details

NPI 1043622277
Specialty Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 05/22/2014

Medicare Part D Prescribing Data

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

93
Total Claims
$4K
Total Drug Cost
21
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
93
Total Day Supply
1,862
Brand Drug Cost
$0
Generic Drug Cost
$4K

Patient Demographics

Average Patient Age
79.8 years
Avg HCC Risk Score
2.95

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Diclofenac Sodium
20
Duloxetine Hcl
12

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

Physician Assistant Overview

How KRISTA CARTER, PA-C fits within the Physician Assistant landscape nationally.

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

KRISTA CARTER, PA-C's 93 claims are below the specialty average of 790.

Nearby Physician Assistant Providers in Missouri

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

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

Frequently Asked Questions

What is KRISTA CARTER, PA-C's specialty?
KRISTA CARTER, PA-C specializes in Physician Assistant and practices in O FALLON, Missouri. Credentials: PA-C.
How much does KRISTA CARTER, PA-C prescribe under Medicare Part D?
In 2023, KRISTA CARTER, PA-C wrote 93 Medicare Part D claims totaling $4K in drug costs for 21 beneficiaries.
Where is KRISTA CARTER, PA-C located?
KRISTA CARTER, PA-C is located at 7068 S OUTER 364, O FALLON, MO, 63368. Phone: (636) 240-6100.
What is KRISTA CARTER, PA-C's NPI number?
KRISTA CARTER, PA-C's National Provider Identifier (NPI) is 1043622277, issued on 05/22/2014.
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 KRISTA CARTER, PA-C prescribe most often?
Based on 2023 Medicare Part D data, KRISTA CARTER, PA-C's most frequently prescribed drugs include Diclofenac Sodium, Duloxetine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KRISTA CARTER, PA-C accept Medicare?
KRISTA CARTER, PA-C appears in CMS Medicare data with 93 Part D claims and 21 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KRISTA CARTER, PA-C's credentials?
KRISTA CARTER, PA-C's NPI is 1043622277 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.
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