2026 NPPES data Medical Oncology Physician NPI 1710983754 MD
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ERIC NELSON, MD

Medical Oncology Physician in SPARTANBURG, 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
767
Medicare Part D claims · 157 beneficiaries · Medical Oncology Physician avg: 689
Generic prescribing
72%
generic claims · 28% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
96.0864/100
▲ 13 pts above national avg 83.1 · [object Object]
Industry payments
$394.48
8 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ERIC NELSON, MD reported a CMS MIPS final score of 96.0864/100 — above the 83.1 national average — and filed 767 Medicare Part D claims in 2023.

96.0864/100
MIPS score · +13 vs avg
767
Part D claims, 2023
72%
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.

ERIC NELSON, MD's MIPS score vs every scored U.S. clinician

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

96 Top 17% higher than 83% 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%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. 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)

ERIC NELSON, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — 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 ERIC NELSON, MD?

High performer (top quartile)

NPI registry status

Active

Issued 06/23/2005

NPI 1710983754

Primary specialty

Medical Oncology Physician

Niche

3,792 US NPIs in this specialty

Medicare Part D claims

767 11% vs specialty avg

2023 prescription claims

Specialty avg: 689

MIPS final score

96.0864/100 12.986400000000003% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in South Carolina

How Medical Oncology Physician compares to other specialties among South Carolina providers

South Carolina providers

Medical Oncology Physician share within South Carolina

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

Medicare quality performance — MIPS

ERIC NELSON, MD's 2023 MIPS final score plotted against the Medical Oncology Physician national average

High performer (top quartile)
MIPS Final Score
96.0864/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Medical Oncology Physician) — 96.0864/100 vs national avg 83.1

0%100%National avg83%96.1%
MIPS final score (Medical Oncology Physician) — 96.0864/100 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).

ERIC NELSON, MD appears in the CMS NPPES registry as a Medical Oncology Physician provider holding MD credentials at 101 E WOOD ST, SPARTANBURG, SC, 29303, with a listed phone of (864) 560-7050. NPI 1710983754 was issued on 06/23/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what NELSON 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 767 prescription claims written by this provider, covering 157 Medicare beneficiaries and totaling roughly $1.2 million in drug spend, split 28% brand-name and 72% generic by claim count, with an opioid prescribing rate of 13.4%. 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 96.0864/100 for the 2023 performance year (Quality 92.1728), compared with the national average of 83.1.

Medical Oncology Physician is a narrow specialty nationwide, with 3,792 enrolled providers across 53 states and an average of 689 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

101 E WOOD ST
SPARTANBURG, SC 29303

Provider Details

NPI 1710983754
Specialty Medical Oncology Physician
Credentials MD
Gender Male
NPI Issued 06/23/2005

CMS Quality Score (MIPS)

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

96.0864
Final Score
Avg: 83.1
92.1728
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

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 ERIC NELSON, MD. Source: openpaymentsdata.cms.gov.

Total received

$394

Largest payer

AstraZeneca Pharmaceuticals LP

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 · Above average

ERIC NELSON, MD — brand share 28.0%
Specialty average (est.)

28% brand-name claims vs 72% generic, on 767 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.

767
Total Claims
$1.2M
Total Drug Cost
157
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,041
Total Day Supply
28,034
Brand vs Generic
28% brand / 72% generic
Brand Drug Cost
$1.1M
Generic Drug Cost
$34K
Opioid Claims
103 (13.4% rate)

Patient Demographics

Average Patient Age
71.2 years
Avg HCC Risk Score
2.37
Gender Split
58% female / 42% male
Age Distribution
<65: 29, 65-74: 66, 75-84: 45, 85+: 17

Top Prescribed Drugs (Medicare Part D)

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

What ERIC NELSON, 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
Eliquis
Apixaban
47
Letrozole
43
Prednisone
37
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
36
Xarelto
Rivaroxaban
34
Lorazepam
31
Gabapentin
28
Levothyroxine Sodium
28
Zolpidem Tartrate
28
Enoxaparin Sodium
25

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

Medical Oncology Physician Overview

How ERIC NELSON, MD fits within the Medical Oncology Physician landscape nationally.

3,792
Medical Oncology Physician Providers in US
53
States with Medical Oncology Physician
689
Avg Claims per Provider

ERIC NELSON, MD's 767 claims are above the specialty average of 689.

Nearby Medical Oncology Physician Providers in South Carolina

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

Compare Medical Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ERIC NELSON, MD's specialty?
ERIC NELSON, MD specializes in Medical Oncology Physician and practices in SPARTANBURG, South Carolina. Credentials: MD.
How much does ERIC NELSON, MD prescribe under Medicare Part D?
In 2023, ERIC NELSON, MD wrote 767 Medicare Part D claims totaling $1.2M in drug costs for 157 beneficiaries.
What is ERIC NELSON, MD's Medicare quality score?
ERIC NELSON, MD has a CMS MIPS Final Score of 96.0864/100 (Quality: 92.1728). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ERIC NELSON, MD located?
ERIC NELSON, MD is located at 101 E WOOD ST, SPARTANBURG, SC, 29303. Phone: (864) 560-7050.
What is ERIC NELSON, MD's NPI number?
ERIC NELSON, MD's National Provider Identifier (NPI) is 1710983754, issued on 06/23/2005.
Does ERIC NELSON, MD prescribe more brand-name or generic drugs?
ERIC NELSON, MD's prescribing is 28% brand-name and 72% generic drugs by claim count, with $1.1M in brand drug costs.
Does ERIC NELSON, MD prescribe opioids?
Yes, ERIC NELSON, MD had 103 opioid claims in 2023 with an opioid prescribing rate of 13.4%.
How many Medical Oncology Physician providers are there in the US?
There are 3,792 Medical Oncology Physician providers across 53 states in the US. The average Medical Oncology Physician provider writes 689 Medicare Part D claims per year.
What drugs does ERIC NELSON, MD prescribe most often?
Based on 2023 Medicare Part D data, ERIC NELSON, MD's most frequently prescribed drugs include Eliquis, Letrozole, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ERIC NELSON, MD accept Medicare?
ERIC NELSON, MD appears in CMS Medicare data with 767 Part D claims and 157 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ERIC NELSON, MD's credentials?
ERIC NELSON, MD's NPI is 1710983754 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