2026 NPPES data Internal Medicine Physician NPI 1841388691 MD
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DANIEL ABRAHAM, MD

Internal Medicine Physician in WINCHESTER, Virginia. 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
321
Medicare Part D claims · 163 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.1 · [object Object]
Industry payments
$41.91
2 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: DANIEL ABRAHAM, MD is a Internal Medicine Physician ([object Object]) practicing in WINCHESTER, Virginia with a Medicare Part D prescribing footprint of 321 claims across 163 beneficiaries — 13% brand-name prescribing . Their CMS MIPS Final Score of 100/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $41.91 across 2 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: DANIEL ABRAHAM, MD reported a CMS MIPS final score of 100 out of 100, above the 83.1 national average, and filed 321 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

DANIEL ABRAHAM, MD 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).

DANIEL ABRAHAM, MD at a glance

High performer (top quartile)

NPI registry status

Active

Issued 10/10/2006

NPI 1841388691

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

321 88% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

100/100 16.900000000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Virginia

How Internal Medicine Physician compares to other specialties among Virginia providers

Virginia providers

Internal Medicine Physician share within Virginia

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

Medicare quality performance — MIPS

DANIEL ABRAHAM, MD's 2023 MIPS final score plotted against the Internal Medicine Physician national average

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

MIPS final score (Internal Medicine Physician) — 100/100 vs national avg 83.1

0%100%National avg83%99%
MIPS final score (Internal Medicine Physician) — 100/100 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).

DANIEL ABRAHAM, MD is a Internal Medicine Physician provider practicing in WINCHESTER, Virginia, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1841388691. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

DANIEL ABRAHAM, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 1840 AMHERST ST, WINCHESTER, VA, 22601, with a listed phone of (540) 536-2270. NPI 1841388691 was issued on 10/10/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ABRAHAM 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 321 prescription claims written by this provider, covering 163 Medicare beneficiaries and totaling roughly $30K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 8.1%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 100/100 for the 2023 performance year (Quality 100, Cost 88.0938), compared with the national average of 83.1.

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

1840 AMHERST ST
WINCHESTER, VA 22601

Provider Details

NPI 1841388691
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 10/10/2006

CMS Quality Score (MIPS)

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

100
Final Score
Avg: 83.1
100
Quality
88.0938
Cost

Reporting: Group practice

Hospital and facility affiliations

Facilities where DANIEL ABRAHAM, 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.

VALLEY HOSPITALISTS, P.C.
WINCHESTER, VA

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 DANIEL ABRAHAM, MD. Source: openpaymentsdata.cms.gov.

Total received

$42

Largest payer

Janssen 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 · Typical

DANIEL ABRAHAM, MD — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 321 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.

321
Total Claims
$30K
Total Drug Cost
163
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
370
Total Day Supply
8,117
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$24K
Generic Drug Cost
$5K
Opioid Claims
26 (8.1% rate)
Antibiotic Claims
43

Patient Demographics

Average Patient Age
76.0 years
Avg HCC Risk Score
2.22
Gender Split
58% female / 42% male
Age Distribution
<65: 14, 65-74: 55, 75-84: 65, 85+: 29

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Furosemide
17
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
15
Atorvastatin Calcium
14
Metoprolol Succinate
14
Cefdinir
13
Clopidogrel
Clopidogrel Bisulfate
13
Metoprolol Tartrate
13
Eliquis
Apixaban
12
Methylprednisolone
12
Pantoprazole Sodium
12

* 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 DANIEL ABRAHAM, 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

DANIEL ABRAHAM, MD's 321 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Virginia

Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as ABRAHAM.

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

Frequently Asked Questions

What is DANIEL ABRAHAM, MD's specialty?
DANIEL ABRAHAM, MD specializes in Internal Medicine Physician and practices in WINCHESTER, Virginia. Credentials: MD.
How much does DANIEL ABRAHAM, MD prescribe under Medicare Part D?
In 2023, DANIEL ABRAHAM, MD wrote 321 Medicare Part D claims totaling $30K in drug costs for 163 beneficiaries.
What is DANIEL ABRAHAM, MD's Medicare quality score?
DANIEL ABRAHAM, MD has a CMS MIPS Final Score of 100/100 (Quality: 100, Cost: 88.0938). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is DANIEL ABRAHAM, MD located?
DANIEL ABRAHAM, MD is located at 1840 AMHERST ST, WINCHESTER, VA, 22601. Phone: (540) 536-2270.
What is DANIEL ABRAHAM, MD's NPI number?
DANIEL ABRAHAM, MD's National Provider Identifier (NPI) is 1841388691, issued on 10/10/2006.
Does DANIEL ABRAHAM, MD prescribe more brand-name or generic drugs?
DANIEL ABRAHAM, MD's prescribing is 13% brand-name and 87% generic drugs by claim count, with $24K in brand drug costs.
Does DANIEL ABRAHAM, MD prescribe opioids?
Yes, DANIEL ABRAHAM, MD had 26 opioid claims in 2023 with an opioid prescribing rate of 8.1%.
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 DANIEL ABRAHAM, MD prescribe most often?
Based on 2023 Medicare Part D data, DANIEL ABRAHAM, MD's most frequently prescribed drugs include Furosemide, Amoxicillin-Clavulanate Potass, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DANIEL ABRAHAM, MD accept Medicare?
DANIEL ABRAHAM, MD appears in CMS Medicare data with 321 Part D claims and 163 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DANIEL ABRAHAM, MD's credentials?
DANIEL ABRAHAM, MD's NPI is 1841388691 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