2026 NPPES data Internal Medicine Physician NPI 1992756340 MD
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ERIKA VASSIL, MD

Internal Medicine Physician in LINCOLNTON, North 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
925
Medicare Part D claims · 155 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
31%
generic claims · 69% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$71.72
3 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ERIKA VASSIL, MD filed 925 Medicare Part D claims in 2023 as a Internal Medicine Physician in LINCOLNTON, North Carolina, prescribing 31% generic.

925
Part D claims, 2023
31%
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.

ERIKA VASSIL, MD's Medicare Part D volume vs every U.S. prescriber

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

925 Top 25% higher than 75% 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%). This entry sits in this band. 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)

ERIKA VASSIL, MD 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 ERIKA VASSIL, MD?

Quality data not reported

NPI registry status

Active

Issued 05/12/2006

NPI 1992756340

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

925 66% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in North Carolina

How Internal Medicine Physician compares to other specialties among North Carolina providers

North Carolina providers

Internal Medicine Physician share within North Carolina

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

Specialty board-certification context

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

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

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

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

ERIKA VASSIL, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 441 MCALISTER RD, LINCOLNTON, NC, 28092, with a listed phone of (980) 487-2700. NPI 1992756340 was issued on 05/12/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what VASSIL 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 925 prescription claims written by this provider, covering 155 Medicare beneficiaries and totaling roughly $444K in drug spend, split 69% brand-name and 31% generic by claim count. 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.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

441 MCALISTER RD
LINCOLNTON, NC 28092

Provider Details

NPI 1992756340
Specialty Internal Medicine Physician
Credentials MD
Gender Female
NPI Issued 05/12/2006

Hospital and facility affiliations

Facilities where ERIKA VASSIL, 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.

CAROLINAS PHYSICIANS NETWORK INC
LINCOLNTON, 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).

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 ERIKA VASSIL, MD. Source: openpaymentsdata.cms.gov.

Total received

$72

Largest payer

JAZZ PHARMACEUTICALS 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

ERIKA VASSIL, MD — brand share 69.0%
Specialty average (est.)

69% brand-name claims vs 31% generic, on 925 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.

925
Total Claims
$444K
Total Drug Cost
155
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,307
Total Day Supply
36,313
Brand vs Generic
69% brand / 31% generic
Brand Drug Cost
$436K
Generic Drug Cost
$8K
Antibiotic Claims
45

Patient Demographics

Average Patient Age
72.6 years
Avg HCC Risk Score
1.82
Gender Split
68% female / 32% male

Top Prescribed Drugs (Medicare Part D)

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

What ERIKA VASSIL, 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
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
132
Breo Ellipta
Fluticasone/Vilanterol
109
Albuterol Sulfate Hfa
Albuterol Sulfate
102
Ventolin Hfa
Albuterol Sulfate
63
Symbicort
Budesonide/Formoterol Fumarate
60
Prednisone
59
Montelukast Sodium
37
Spiriva Handihaler
Tiotropium Bromide
36
Fluticasone Propionate
33
Anoro Ellipta
Umeclidinium Brm/Vilanterol Tr
32

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

Internal Medicine Physician Overview

How ERIKA VASSIL, MD fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

ERIKA VASSIL, MD's 925 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in North Carolina

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

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

Frequently Asked Questions

What is ERIKA VASSIL, MD's specialty?
ERIKA VASSIL, MD specializes in Internal Medicine Physician and practices in LINCOLNTON, North Carolina. Credentials: MD.
How much does ERIKA VASSIL, MD prescribe under Medicare Part D?
In 2023, ERIKA VASSIL, MD wrote 925 Medicare Part D claims totaling $444K in drug costs for 155 beneficiaries.
Where is ERIKA VASSIL, MD located?
ERIKA VASSIL, MD is located at 441 MCALISTER RD, LINCOLNTON, NC, 28092. Phone: (980) 487-2700.
What is ERIKA VASSIL, MD's NPI number?
ERIKA VASSIL, MD's National Provider Identifier (NPI) is 1992756340, issued on 05/12/2006.
Does ERIKA VASSIL, MD prescribe more brand-name or generic drugs?
ERIKA VASSIL, MD's prescribing is 69% brand-name and 31% generic drugs by claim count, with $436K in brand drug costs.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does ERIKA VASSIL, MD prescribe most often?
Based on 2023 Medicare Part D data, ERIKA VASSIL, MD's most frequently prescribed drugs include Trelegy Ellipta, Breo Ellipta, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ERIKA VASSIL, MD accept Medicare?
ERIKA VASSIL, MD appears in CMS Medicare data with 925 Part D claims and 155 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ERIKA VASSIL, MD's credentials?
ERIKA VASSIL, MD's NPI is 1992756340 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.
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