2026 NPPES data Emergency Medicine Physician NPI 1821478322 M.D.
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CHRISTIAN SIMPSON, M.D.

Emergency Medicine Physician in COLUMBIA, 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
385
Medicare Part D claims · 265 beneficiaries · Emergency Medicine Physician avg: 352

What the federal data shows

CHRISTIAN SIMPSON, M.D. filed 385 Medicare Part D claims in 2023 as a Emergency Medicine Physician in COLUMBIA, South Carolina.

385
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.

CHRISTIAN SIMPSON, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

385 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 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)

CHRISTIAN SIMPSON, 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 CHRISTIAN SIMPSON, M.D.?

Quality data not reported

NPI registry status

Active

Issued 06/01/2015

NPI 1821478322

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

385 9% vs specialty avg

2023 prescription claims

Specialty avg: 352

Specialty distribution in South Carolina

How Emergency Medicine Physician compares to other specialties among South Carolina providers

South Carolina providers

Emergency Medicine Physician share within South Carolina

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Emergency 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).

CHRISTIAN SIMPSON, M.D. appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding M.D. credentials at 14 MEDICAL PARK, STE 350, COLUMBIA, SC, 29203, with a listed phone of (803) 434-3790. NPI 1821478322 was issued on 06/01/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SIMPSON 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 385 prescription claims written by this provider, covering 265 Medicare beneficiaries and totaling roughly $11K in drug spend, with an opioid prescribing rate of 17.1%. 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.

Emergency Medicine Physician is a high-volume specialty nationwide, with 64,398 enrolled providers across 56 states and an average of 352 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

14 MEDICAL PARK, STE 350
COLUMBIA, SC 29203

Provider Details

NPI 1821478322
Specialty Emergency Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 06/01/2015

Hospital and facility affiliations

Facilities where CHRISTIAN SIMPSON, 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.

RALEIGH EMERGENCY MEDICINE ASSOCIATES INC
RALEIGH, NC

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

Medicare Part D Prescribing Data

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

385
Total Claims
$11K
Total Drug Cost
265
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
387
Total Day Supply
3,780
Generic Drug Cost
$3K
Opioid Claims
66 (17.1% rate)
Antibiotic Claims
87

Patient Demographics

Average Patient Age
73.3 years
Avg HCC Risk Score
1.81
Gender Split
66% female / 34% male
Age Distribution
<65: 39, 65-74: 106, 75-84: 71, 85+: 49

Top Prescribed Drugs (Medicare Part D)

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

What CHRISTIAN SIMPSON, 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
Cephalexin
30
Prednisone
28
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
26
Ondansetron Odt
Ondansetron
23
Tramadol Hcl
18
Albuterol Sulfate Hfa
Albuterol Sulfate
16
Azithromycin
14
Dicyclomine Hcl
13

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

Emergency Medicine Physician Overview

How CHRISTIAN SIMPSON, M.D. fits within the Emergency Medicine Physician landscape nationally.

64,398
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider

CHRISTIAN SIMPSON, M.D.'s 385 claims are above the specialty average of 352.

Nearby Emergency 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 SIMPSON.

Compare Emergency Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is CHRISTIAN SIMPSON, M.D.'s specialty?
CHRISTIAN SIMPSON, M.D. specializes in Emergency Medicine Physician and practices in COLUMBIA, South Carolina. Credentials: M.D..
How much does CHRISTIAN SIMPSON, M.D. prescribe under Medicare Part D?
In 2023, CHRISTIAN SIMPSON, M.D. wrote 385 Medicare Part D claims totaling $11K in drug costs for 265 beneficiaries.
Where is CHRISTIAN SIMPSON, M.D. located?
CHRISTIAN SIMPSON, M.D. is located at 14 MEDICAL PARK, STE 350, COLUMBIA, SC, 29203. Phone: (803) 434-3790.
What is CHRISTIAN SIMPSON, M.D.'s NPI number?
CHRISTIAN SIMPSON, M.D.'s National Provider Identifier (NPI) is 1821478322, issued on 06/01/2015.
Does CHRISTIAN SIMPSON, M.D. prescribe opioids?
Yes, CHRISTIAN SIMPSON, M.D. had 66 opioid claims in 2023 with an opioid prescribing rate of 17.1%.
How many Emergency Medicine Physician providers are there in the US?
There are 64,398 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does CHRISTIAN SIMPSON, M.D. prescribe most often?
Based on 2023 Medicare Part D data, CHRISTIAN SIMPSON, M.D.'s most frequently prescribed drugs include Cephalexin, Prednisone, Oxycodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHRISTIAN SIMPSON, M.D. accept Medicare?
CHRISTIAN SIMPSON, M.D. appears in CMS Medicare data with 385 Part D claims and 265 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHRISTIAN SIMPSON, M.D.'s credentials?
CHRISTIAN SIMPSON, M.D.'s NPI is 1821478322 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