2026 NPPES data Clinical & Laboratory Immunology (Allergy & Immunology) Physician NPI 1124188875 M.D.,PH.D.
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MICHAEL NELSON, M.D.,PH.D.

Clinical & Laboratory Immunology (Allergy & Immunology) Physician in CHARLOTTESVILLE, 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
35
Medicare Part D claims · 13 beneficiaries · Clinical & Laboratory Immunology (Allergy & Immunology) Physician avg: 701
Generic prescribing
57%
generic claims · 43% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
79.3949/100
▼ 4 pts below national avg 83.1 · [object Object]
Industry payments
$34.76
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MICHAEL NELSON, M.D.,PH.D. reported a CMS MIPS final score of 79.3949/100 — below the 83.1 national average — and filed 35 Medicare Part D claims in 2023.

79.3949/100
MIPS score · -4 vs avg
35
Part D claims, 2023
57%
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.

MICHAEL NELSON, M.D.,PH.D.'s MIPS score vs every scored U.S. clinician

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

79 30th percentile higher than 30% 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%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. 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)

MICHAEL NELSON, M.D.,PH.D. 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).

What does the federal data show about MICHAEL NELSON, M.D.,PH.D.?

Near national average

NPI registry status

Active

Issued 12/11/2006

NPI 1124188875

Primary specialty

Clinical & Laboratory Immunology (Allergy & Immunology) Physician

Rare

97 US NPIs in this specialty

Medicare Part D claims

35 95% vs specialty avg

2023 prescription claims

Specialty avg: 701

MIPS final score

79.3949/100 3.7050999999999874% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Virginia

How Clinical & Laboratory Immunology (Allergy & Immunology) Physician compares to other specialties among Virginia providers

Virginia providers

Clinical & Laboratory Immunology (Allergy & Immunology) Physician share within Virginia

1. Clinical & Laboratory Immunology (Allergy & Immunology) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Clinical & Laboratory Immunology (Allergy & Immunology) Physician share within Virginia

Medicare quality performance — MIPS

MICHAEL NELSON, M.D.,PH.D.'s 2023 MIPS final score plotted against the Clinical & Laboratory Immunology (Allergy & Immunology) Physician national average

Near national average
MIPS Final Score
79.3949/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Clinical & Laboratory Immunology (Allergy & Immunology) Physician) — 79.3949/100 vs national avg 83.1

0%100%National avg83%79.4%
MIPS final score (Clinical & Laboratory Immunology (Allergy & Immunology) Physician) — 79.3949/100 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).

MICHAEL NELSON, M.D.,PH.D. appears in the CMS NPPES registry as a Clinical & Laboratory Immunology (Allergy & Immunology) Physician provider holding M.D.,PH.D. credentials at 2955 IVY RD STE 311, CHARLOTTESVILLE, VA, 22903, with a listed phone of (434) 924-2227. NPI 1124188875 was issued on 12/11/2006. 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 35 prescription claims written by this provider, covering 13 Medicare beneficiaries and totaling roughly $39K in drug spend, split 43% brand-name and 57% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.3949/100 for the 2023 performance year (Quality 73.6607, Cost 57.6556), compared with the national average of 83.1.

Clinical & Laboratory Immunology (Allergy & Immunology) Physician is a narrow specialty nationwide, with 97 enrolled providers across 29 states and an average of 701 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

2955 IVY RD STE 311
CHARLOTTESVILLE, VA 22903

Provider Details

NPI 1124188875
Specialty Clinical & Laboratory Immunology (Allergy & Immunology) Physician
Credentials M.D.,PH.D.
Gender Male
NPI Issued 12/11/2006

CMS Quality Score (MIPS)

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

79.3949
Final Score
Avg: 83.1
73.6607
Quality
57.6556
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where MICHAEL NELSON, M.D.,PH.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.

UNIVERSITY OF VIRGINIA PHYSICIANS GROUP
CHARLOTTESVILLE, 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 MICHAEL NELSON, M.D.,PH.D.. Source: openpaymentsdata.cms.gov.

Total received

$35

Largest payer

ABBVIE 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 · Above average

MICHAEL NELSON, M.D.,PH.D. — brand share 43.0%
Specialty average (est.)

43% brand-name claims vs 57% generic, on 35 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.

35
Total Claims
$39K
Total Drug Cost
13
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
41
Total Day Supply
1,062
Brand vs Generic
43% brand / 57% generic
Brand Drug Cost
$38K
Generic Drug Cost
$964

Patient Demographics

Average Patient Age
70.6 years
Avg HCC Risk Score
1.41

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Nucala
Mepolizumab
11

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

Clinical & Laboratory Immunology (Allergy & Immunology) Physician Overview

How MICHAEL NELSON, M.D.,PH.D. fits within the Clinical & Laboratory Immunology (Allergy & Immunology) Physician landscape nationally.

97
Clinical & Laboratory Immunology (Allergy & Immunology) Physician Providers in US
29
States with Clinical & Laboratory Immunology (Allergy & Immunology) Physician
701
Avg Claims per Provider

MICHAEL NELSON, M.D.,PH.D.'s 35 claims are below the specialty average of 701.

Nearby Clinical & Laboratory Immunology (Allergy & Immunology) Physician Providers in Virginia

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

Compare Clinical & Laboratory Immunology (Allergy & Immunology) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MICHAEL NELSON, M.D.,PH.D.'s specialty?
MICHAEL NELSON, M.D.,PH.D. specializes in Clinical & Laboratory Immunology (Allergy & Immunology) Physician and practices in CHARLOTTESVILLE, Virginia. Credentials: M.D.,PH.D..
How much does MICHAEL NELSON, M.D.,PH.D. prescribe under Medicare Part D?
In 2023, MICHAEL NELSON, M.D.,PH.D. wrote 35 Medicare Part D claims totaling $39K in drug costs for 13 beneficiaries.
What is MICHAEL NELSON, M.D.,PH.D.'s Medicare quality score?
MICHAEL NELSON, M.D.,PH.D. has a CMS MIPS Final Score of 79.3949/100 (Quality: 73.6607, Cost: 57.6556). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MICHAEL NELSON, M.D.,PH.D. located?
MICHAEL NELSON, M.D.,PH.D. is located at 2955 IVY RD STE 311, CHARLOTTESVILLE, VA, 22903. Phone: (434) 924-2227.
What is MICHAEL NELSON, M.D.,PH.D.'s NPI number?
MICHAEL NELSON, M.D.,PH.D.'s National Provider Identifier (NPI) is 1124188875, issued on 12/11/2006.
Does MICHAEL NELSON, M.D.,PH.D. prescribe more brand-name or generic drugs?
MICHAEL NELSON, M.D.,PH.D.'s prescribing is 43% brand-name and 57% generic drugs by claim count, with $38K in brand drug costs.
How many Clinical & Laboratory Immunology (Allergy & Immunology) Physician providers are there in the US?
There are 97 Clinical & Laboratory Immunology (Allergy & Immunology) Physician providers across 29 states in the US. The average Clinical & Laboratory Immunology (Allergy & Immunology) Physician provider writes 701 Medicare Part D claims per year.
What drugs does MICHAEL NELSON, M.D.,PH.D. prescribe most often?
Based on 2023 Medicare Part D data, MICHAEL NELSON, M.D.,PH.D.'s most frequently prescribed drugs include Nucala. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MICHAEL NELSON, M.D.,PH.D. accept Medicare?
MICHAEL NELSON, M.D.,PH.D. appears in CMS Medicare data with 35 Part D claims and 13 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHAEL NELSON, M.D.,PH.D.'s credentials?
MICHAEL NELSON, M.D.,PH.D.'s NPI is 1124188875 with credentials M.D.,PH.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.
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