2026 NPPES data Adolescent Medicine (Internal Medicine) Physician NPI 1578767323 M.D.
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AMANDA O'KELLY, M.D.

Adolescent Medicine (Internal Medicine) Physician in SIMPSONVILLE, 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
2K
Medicare Part D claims · 147 beneficiaries · Adolescent Medicine (Internal Medicine) Physician avg: 3K
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$140.52
8 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

AMANDA O'KELLY, M.D. filed 1,875 Medicare Part D claims in 2023 as a Adolescent Medicine (Internal Medicine) Physician in SIMPSONVILLE, South Carolina, prescribing 86% generic.

2K
Part D claims, 2023
86%
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.

AMANDA O'KELLY, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

1,875 Top 17% higher than 83% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). This entry sits in this band. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

AMANDA O'KELLY, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 AMANDA O'KELLY, M.D.?

Quality data not reported

NPI registry status

Active

Issued 06/14/2007

NPI 1578767323

Primary specialty

Adolescent Medicine (Internal Medicine) Physician

Rare

377 US NPIs in this specialty

Medicare Part D claims

1,875 42% vs specialty avg

2023 prescription claims

Specialty avg: 3,242

Specialty distribution in South Carolina

How Adolescent Medicine (Internal Medicine) Physician compares to other specialties among South Carolina providers

South Carolina providers

Adolescent Medicine (Internal Medicine) Physician share within South Carolina

1. Adolescent Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Adolescent Medicine (Internal Medicine) Physician share within South Carolina

Specialty board-certification context

Estimated specialty board-certified rate — Adolescent Medicine (Internal Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Adolescent Medicine (Internal Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Adolescent Medicine (Internal Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Adolescent Medicine (Internal Medicine) Physician) — 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).

AMANDA O'KELLY, M.D. appears in the CMS NPPES registry as a Adolescent Medicine (Internal Medicine) Physician provider holding M.D. credentials at 727 SE MAIN ST, SIMPSONVILLE, SC, 29681, with a listed phone of (864) 454-6440. NPI 1578767323 was issued on 06/14/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what O'KELLY 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 1,875 prescription claims written by this provider, covering 147 Medicare beneficiaries and totaling roughly $201K in drug spend, split 14% brand-name and 86% generic by claim count, with an opioid prescribing rate of 1.9%. 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.

Adolescent Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 377 enrolled providers across 46 states and an average of 3,242 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

727 SE MAIN ST
SIMPSONVILLE, SC 29681

Provider Details

NPI 1578767323
Specialty Adolescent Medicine (Internal Medicine) Physician
Credentials M.D.
Gender Female
NPI Issued 06/14/2007

Hospital and facility affiliations

Facilities where AMANDA O'KELLY, M.D. 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.

PRISMA HEALTH UNIVERSITY MEDICAL GROUP
DUNCAN, 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 AMANDA O'KELLY, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$141

Largest payer

Lilly USA, LLC

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 · Typical

AMANDA O'KELLY, M.D. — brand share 14.0%
Specialty average (est.)

14% brand-name claims vs 86% generic, on 1,875 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.

1,875
Total Claims
$201K
Total Drug Cost
147
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,282
Total Day Supply
124,459
Brand vs Generic
14% brand / 86% generic
Brand Drug Cost
$161K
Generic Drug Cost
$38K
Opioid Claims
36 (1.9% rate)
Antibiotic Claims
39

Patient Demographics

Average Patient Age
69.5 years
Avg HCC Risk Score
1.38
Gender Split
75% female / 25% male
Age Distribution
<65: 27, 65-74: 63, 75-84: 45, 85+: 12

Top Prescribed Drugs (Medicare Part D)

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

What AMANDA O'KELLY, M.D. 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
Atorvastatin Calcium
84
Losartan Potassium
80
Amlodipine Besylate
68
Alendronate Sodium
59
Omeprazole
59
Montelukast Sodium
56
Famotidine
51
Pravastatin Sodium
43
Lisinopril
39
Levothyroxine Sodium
38

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

Adolescent Medicine (Internal Medicine) Physician Overview

How AMANDA O'KELLY, M.D. fits within the Adolescent Medicine (Internal Medicine) Physician landscape nationally.

377
Adolescent Medicine (Internal Medicine) Physician Providers in US
46
States with Adolescent Medicine (Internal Medicine) Physician
3,242
Avg Claims per Provider

AMANDA O'KELLY, M.D.'s 1,875 claims are below the specialty average of 3,242.

Nearby Adolescent Medicine (Internal 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 O'KELLY.

Compare Adolescent Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is AMANDA O'KELLY, M.D.'s specialty?
AMANDA O'KELLY, M.D. specializes in Adolescent Medicine (Internal Medicine) Physician and practices in SIMPSONVILLE, South Carolina. Credentials: M.D..
How much does AMANDA O'KELLY, M.D. prescribe under Medicare Part D?
In 2023, AMANDA O'KELLY, M.D. wrote 1,875 Medicare Part D claims totaling $201K in drug costs for 147 beneficiaries.
Where is AMANDA O'KELLY, M.D. located?
AMANDA O'KELLY, M.D. is located at 727 SE MAIN ST, SIMPSONVILLE, SC, 29681. Phone: (864) 454-6440.
What is AMANDA O'KELLY, M.D.'s NPI number?
AMANDA O'KELLY, M.D.'s National Provider Identifier (NPI) is 1578767323, issued on 06/14/2007.
Does AMANDA O'KELLY, M.D. prescribe more brand-name or generic drugs?
AMANDA O'KELLY, M.D.'s prescribing is 14% brand-name and 86% generic drugs by claim count, with $161K in brand drug costs.
Does AMANDA O'KELLY, M.D. prescribe opioids?
Yes, AMANDA O'KELLY, M.D. had 36 opioid claims in 2023 with an opioid prescribing rate of 1.9%.
How many Adolescent Medicine (Internal Medicine) Physician providers are there in the US?
There are 377 Adolescent Medicine (Internal Medicine) Physician providers across 46 states in the US. The average Adolescent Medicine (Internal Medicine) Physician provider writes 3,242 Medicare Part D claims per year.
What drugs does AMANDA O'KELLY, M.D. prescribe most often?
Based on 2023 Medicare Part D data, AMANDA O'KELLY, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Losartan Potassium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does AMANDA O'KELLY, M.D. accept Medicare?
AMANDA O'KELLY, M.D. appears in CMS Medicare data with 1,875 Part D claims and 147 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify AMANDA O'KELLY, M.D.'s credentials?
AMANDA O'KELLY, M.D.'s NPI is 1578767323 with credentials M.D.. 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