2026 NPPES data Gynecology Physician NPI 1144888264 MD
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COURTNEY POSTON, MD

Gynecology Physician 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
49
Medicare Part D claims · 19 beneficiaries · Gynecology Physician avg: 295
MIPS score
89.8973/100
▲ 7 pts above national avg 83.1 · [object Object]
Industry payments
$311.21
11 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

COURTNEY POSTON, MD reported a CMS MIPS final score of 89.8973/100 — above the 83.1 national average — and filed 49 Medicare Part D claims in 2023.

89.8973/100
MIPS score · +7 vs avg
49
Part D claims, 2023
Likely
board-certified (heuristic)

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.

COURTNEY POSTON, MD's MIPS score vs every scored U.S. clinician

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

90 Top 42% higher than 58% 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

Board certification likely (heuristic — not verified)

COURTNEY POSTON, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about COURTNEY POSTON, MD?

High performer (top quartile)

NPI registry status

Active

Issued 06/04/2019

NPI 1144888264

Primary specialty

Gynecology Physician

Niche

3,902 US NPIs in this specialty

Medicare Part D claims

49 83% vs specialty avg

2023 prescription claims

Specialty avg: 295

MIPS final score

89.8973/100 6.797300000000007% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in South Carolina

How Gynecology Physician compares to other specialties among South Carolina providers

South Carolina providers

Gynecology Physician share within South Carolina

1. Gynecology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Gynecology Physician share within South Carolina

Medicare quality performance — MIPS

COURTNEY POSTON, MD's 2023 MIPS final score plotted against the Gynecology Physician national average

High performer (top quartile)
MIPS Final Score
89.8973/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Gynecology Physician) — 89.8973/100 vs national avg 83.1

0%100%National avg83%89.9%
MIPS final score (Gynecology Physician) — 89.8973/100 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).

COURTNEY POSTON, MD appears in the CMS NPPES registry as a Gynecology Physician provider holding MD credentials at 171 ASHLEY AVE, CHARLESTON, SC, 29425, with a listed phone of (843) 792-1414. NPI 1144888264 was issued on 06/04/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what POSTON 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 49 prescription claims written by this provider, covering 19 Medicare beneficiaries and totaling roughly $1K in drug spend, with an opioid prescribing rate of 24.5%. 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 89.8973/100 for the 2023 performance year (Quality 75.7557), compared with the national average of 83.1.

Gynecology Physician is a narrow specialty nationwide, with 3,902 enrolled providers across 53 states and an average of 295 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 1144888264
Specialty Gynecology Physician
Credentials MD
Gender Female
NPI Issued 06/04/2019

CMS Quality Score (MIPS)

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

89.8973
Final Score
Avg: 83.1
75.7557
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where COURTNEY POSTON, MD 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
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).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for COURTNEY POSTON, MD. Source: openpaymentsdata.cms.gov.

Total received

$311

Largest payer

COLOPLAST CORP

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

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

49
Total Claims
$1K
Total Drug Cost
19
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
53
Total Day Supply
689
Generic Drug Cost
$1K
Opioid Claims
12 (24.5% rate)

Patient Demographics

Average Patient Age
71.5 years
Avg HCC Risk Score
0.98
Gender Split
100% female / 0% male

Top Prescribed Drugs (Medicare Part D)

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

What COURTNEY POSTON, MD 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
Ibuprofen
14
Ondansetron Odt
Ondansetron
14
Oxycodone Hcl
12

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

Gynecology Physician Overview

How COURTNEY POSTON, MD fits within the Gynecology Physician landscape nationally.

3,902
Gynecology Physician Providers in US
53
States with Gynecology Physician
295
Avg Claims per Provider

COURTNEY POSTON, MD's 49 claims are below the specialty average of 295.

Nearby Gynecology Physician Providers in South Carolina

Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as POSTON.

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

Frequently Asked Questions

What is COURTNEY POSTON, MD's specialty?
COURTNEY POSTON, MD specializes in Gynecology Physician and practices in CHARLESTON, South Carolina. Credentials: MD.
How much does COURTNEY POSTON, MD prescribe under Medicare Part D?
In 2023, COURTNEY POSTON, MD wrote 49 Medicare Part D claims totaling $1K in drug costs for 19 beneficiaries.
What is COURTNEY POSTON, MD's Medicare quality score?
COURTNEY POSTON, MD has a CMS MIPS Final Score of 89.8973/100 (Quality: 75.7557). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is COURTNEY POSTON, MD located?
COURTNEY POSTON, MD is located at 171 ASHLEY AVE, CHARLESTON, SC, 29425. Phone: (843) 792-1414.
What is COURTNEY POSTON, MD's NPI number?
COURTNEY POSTON, MD's National Provider Identifier (NPI) is 1144888264, issued on 06/04/2019.
Does COURTNEY POSTON, MD prescribe opioids?
Yes, COURTNEY POSTON, MD had 12 opioid claims in 2023 with an opioid prescribing rate of 24.5%.
How many Gynecology Physician providers are there in the US?
There are 3,902 Gynecology Physician providers across 53 states in the US. The average Gynecology Physician provider writes 295 Medicare Part D claims per year.
What drugs does COURTNEY POSTON, MD prescribe most often?
Based on 2023 Medicare Part D data, COURTNEY POSTON, MD's most frequently prescribed drugs include Ibuprofen, Ondansetron Odt, Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does COURTNEY POSTON, MD accept Medicare?
COURTNEY POSTON, MD appears in CMS Medicare data with 49 Part D claims and 19 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify COURTNEY POSTON, MD's credentials?
COURTNEY POSTON, MD's NPI is 1144888264 with credentials MD. 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