NPI registry status
Active
2026 NPPES data Adult Medicine Physician NPI 1659859361 APN-C
Verify on CMS → Maegan Manson, APN-C
Adult Medicine Physician in Charleston, South Carolina.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 2,481 in Adult Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
812
Medicare Part D claims · 131 beneficiaries · Adult Medicine Physician avg: 3K
Generic prescribing
22%
generic claims · 60% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
73.8/100
▼ 9 pts below national avg 83.1 · Mid-tier
Industry payments
$265.15
2 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Maegan Manson, APN-C reported a CMS MIPS final score of 73.8/100 - below the 83.1 national average - and filed 812 Medicare Part D claims in 2023.
- 73.8/100
- MIPS score · -9 vs avg
- 812
- Part D claims, 2023
- 22%
- generic prescribing
- 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.
Maegan Manson, APN-C's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
74 11th percentile higher than 11% of 477,587 scored providers
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
Where Maegan Manson, APN-C sits
This provider among adult medicine physician peers
Across the 216 adult medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Maegan Manson, APN-C writes more Part D claims than 35% of them and scores higher on MIPS quality than 17% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one adult medicine physician peer from a representative sample of 60; the gold marker is Maegan Manson, APN-C. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Maegan Manson, APN-C 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 Maegan Manson, APN-C?
Below national averagePrimary specialty
Adult Medicine Physician
Medicare Part D claims
812 71% vs specialty avg
MIPS final score
73.8/100 9.3 pts vs avg
Specialty distribution in South Carolina
How Adult Medicine Physician compares to other specialties among South Carolina providers
Medicare quality performance, MIPS
Maegan Manson, APN-C's 2023 MIPS final score plotted against the Adult Medicine Physician national average
- MIPS Final Score
- 73.8/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Adult Medicine Physician) - 73.8/100 vs national avg 83.1
How MIPS and board certification work
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).
Maegan Manson, APN-C appears in the CMS NPPES registry as a Adult Medicine Physician provider holding APN-C credentials at 171 ASHLEY AVE, Charleston, SC, 29425, with a listed phone of (843) 792-1414. NPI 1659859361 was issued on 08/03/2018.
Medicare Part D records for calendar year 2023 show 812 prescription claims written by this provider, covering 131 Medicare beneficiaries and totaling roughly $517K in drug spend, split 60% brand-name and 22% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 73.8/100 for the 2023 performance year (Quality 60.3, Cost 53.4), compared with the national average of 83.1.
Adult Medicine Physician is a narrow specialty nationwide, with 2,481 enrolled providers across 52 states and an average of 2,807 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
Provider Details
| NPI | 1659859361 |
|---|---|
| Specialty | Adult Medicine Physician |
| Credentials | APN-C |
| Gender | Female |
| NPI Issued | 08/03/2018 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
73.8449
Final Score
Avg: 83.1
60.2834
Quality
53.3663
Cost
99
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Maegan Manson, APN-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.
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 Maegan Manson, APN-C. Source: openpaymentsdata.cms.gov.
Total received
$265
Largest payer
BETA BIONICS, INC.
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.
Brand vs generic prescribing mix · Brand-heavy
Maegan Manson, APN-C - brand share 60.0%
Adult Medicine Physician average
60% brand-name claims vs 22% generic, on 812 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
812
Total Claims
$517K
Total Drug Cost
131
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,492
- Total Day Supply
- 43,992
- Brand vs Generic
- 60% brand / 22% generic
- Brand Drug Cost
- $495K
- Generic Drug Cost
- $3K
Patient Demographics
- Average Patient Age
- 63.3 years
- Avg HCC Risk Score
- 2.46
- Gender Split
- 62% female / 38% male
- Age Distribution
- <65: 55, 65-74: 53, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Maegan Manson, APN-C prescribes most
Top Medicare Part D drugs by claim count, 2023
- Mounjaro
Mounjaro
56 claims
- Ozempic
Ozempic
40 claims
- Humalog Kwikpen U-…
Humalog Kwikpen U-100
34 claims
- Novolog Flexpen
Novolog Flexpen
31 claims
- Metformin Hcl
Metformin Hcl
30 claims
- Metformin Hcl Er
Metformin Hcl Er
24 claims
- Rybelsus
Rybelsus
24 claims
- Insulin Lispro Kwi… 22
Insulin Lispro Kwikpen U-100
22 claims
| Drug | Claims |
|---|---|
| Mounjaro Tirzepatide | 56 |
| Ozempic Semaglutide | 40 |
| Humalog Kwikpen U-100 Insulin Lispro | 34 |
| Novolog Flexpen Insulin Aspart | 31 |
| Metformin Hcl | 30 |
| Metformin Hcl Er Metformin Hcl | 24 |
| Rybelsus Semaglutide | 24 |
| Insulin Lispro Kwikpen U-100 Insulin Lispro | 22 |
| Trulicity Dulaglutide | 22 |
| Januvia Sitagliptin Phosphate | 21 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Adult Medicine Physician Overview
How Maegan Manson, APN-C fits within the Adult Medicine Physician landscape nationally.
2,481
Adult Medicine Physician Providers in US
52
States with Adult Medicine Physician
2,807
Avg Claims per Provider
Maegan Manson, APN-C's 812 claims are below the specialty average of 2,807.
Nearby Adult Medicine Physician Providers in South Carolina
Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as Manson.
Dr. Horace Bledsoe
MD
Lexington, SC
Dr. Latasha Burgess
M.D.
Florence, SC
Dr. Lisa Centilli
D.O.
Murrells Inlet, SC
Dr. Stephen Dersch
MD
Florence, SC
Dr. Elizabeth Dickinson
M.D.
Darlington, SC
Compare Adult Medicine Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the South Carolina medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Adult Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Maegan Manson, APN-C's specialty? ▼
Maegan Manson, APN-C specializes in Adult Medicine Physician and practices in Charleston, South Carolina. Credentials: APN-C.
How much does Maegan Manson, APN-C prescribe under Medicare Part D? ▼
In 2023, Maegan Manson, APN-C wrote 812 Medicare Part D claims totaling $517K in drug costs for 131 beneficiaries.
What is Maegan Manson, APN-C's Medicare quality score? ▼
Maegan Manson, APN-C has a CMS MIPS Final Score of 73.8/100 (Quality: 60.3, Cost: 53.4). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Maegan Manson, APN-C located? ▼
Maegan Manson, APN-C is located at 171 ASHLEY AVE, Charleston, SC, 29425. Phone: (843) 792-1414.
What is Maegan Manson, APN-C's NPI number? ▼
Maegan Manson, APN-C's National Provider Identifier (NPI) is 1659859361, issued on 08/03/2018.
Does Maegan Manson, APN-C prescribe more brand-name or generic drugs? ▼
Maegan Manson, APN-C's prescribing is 60% brand-name and 22% generic drugs by claim count, with $495K in brand drug costs.
How many Adult Medicine Physician providers are there in the US? ▼
There are 2,481 Adult Medicine Physician providers across 52 states in the US. The average Adult Medicine Physician provider writes 2,807 Medicare Part D claims per year.
What drugs does Maegan Manson, APN-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Maegan Manson, APN-C's most frequently prescribed drugs include Mounjaro, Ozempic, Humalog Kwikpen U-100. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Maegan Manson, APN-C accept Medicare? ▼
Maegan Manson, APN-C appears in CMS Medicare data with 812 Part D claims and 131 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Maegan Manson, APN-C's credentials? ▼
Maegan Manson, APN-C's NPI is 1659859361 with credentials APN-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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.