2026 NPPES data Allergy & Immunology Physician NPI 1891923074 M.D.
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TIMOTHY CAMPBELL, M.D.

Allergy & Immunology Physician in WILLIAMSBURG, 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
722
Medicare Part D claims · 164 beneficiaries · Allergy & Immunology Physician avg: 764
Generic prescribing
67%
generic claims · 33% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
54.7572/100
▼ 28 pts below national avg 83.1 · [object Object]
Industry payments
$2.6K
107 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

TIMOTHY CAMPBELL, M.D. reported a CMS MIPS final score of 54.7572/100 — below the 83.1 national average — and filed 722 Medicare Part D claims in 2023.

54.7572/100
MIPS score · -28 vs avg
722
Part D claims, 2023
67%
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.

TIMOTHY CAMPBELL, M.D.'s MIPS score vs every scored U.S. clinician

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

55 5th percentile higher than 5% 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%). This entry sits in this band. 60–70: 13,906 scored providers (3%). Above this entry. 70–80: 118,074 scored providers (25%). Above this entry. 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)

TIMOTHY CAMPBELL, M.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 TIMOTHY CAMPBELL, M.D.?

Below national average

NPI registry status

Active

Issued 06/26/2009

NPI 1891923074

Primary specialty

Allergy & Immunology Physician

Niche

3,390 US NPIs in this specialty

Medicare Part D claims

722 5% vs specialty avg

2023 prescription claims

Specialty avg: 764

MIPS final score

54.7572/100 28.342799999999997% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in Virginia

How Allergy & Immunology Physician compares to other specialties among Virginia providers

Virginia providers

Allergy & Immunology Physician share within Virginia

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

Medicare quality performance — MIPS

TIMOTHY CAMPBELL, M.D.'s 2023 MIPS final score plotted against the Allergy & Immunology Physician national average

Below national average
MIPS Final Score
54.7572/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Allergy & Immunology Physician) — 54.7572/100 vs national avg 83.1

0%100%National avg83%54.8%
MIPS final score (Allergy & Immunology Physician) — 54.7572/100 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).

TIMOTHY CAMPBELL, M.D. appears in the CMS NPPES registry as a Allergy & Immunology Physician provider holding M.D. credentials at 1144 PROFESSIONAL DR, WILLIAMSBURG, VA, 23185, with a listed phone of (757) 259-0443. NPI 1891923074 was issued on 06/26/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CAMPBELL 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 722 prescription claims written by this provider, covering 164 Medicare beneficiaries and totaling roughly $281K in drug spend, split 33% brand-name and 67% 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 54.7572/100 for the 2023 performance year (Quality 57.936, Cost 26.3081), compared with the national average of 83.1.

Allergy & Immunology Physician is a narrow specialty nationwide, with 3,390 enrolled providers across 52 states and an average of 764 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

1144 PROFESSIONAL DR
WILLIAMSBURG, VA 23185

Provider Details

NPI 1891923074
Specialty Allergy & Immunology Physician
Credentials M.D.
Gender Male
NPI Issued 06/26/2009

CMS Quality Score (MIPS)

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

54.7572
Final Score
Avg: 83.1
57.936
Quality
26.3081
Cost

Reporting: Individual

Hospital and facility affiliations

Facilities where TIMOTHY CAMPBELL, 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.

ALLERGY PARTNERS PLLC
WILLIAMSBURG, 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 TIMOTHY CAMPBELL, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$2.6K

Largest payer

GENZYME CORPORATION

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

TIMOTHY CAMPBELL, M.D. — brand share 33.0%
Specialty average (est.)

33% brand-name claims vs 67% generic, on 722 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.

722
Total Claims
$281K
Total Drug Cost
164
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
947
Total Day Supply
25,798
Brand vs Generic
33% brand / 67% generic
Brand Drug Cost
$263K
Generic Drug Cost
$18K
Antibiotic Claims
14

Patient Demographics

Average Patient Age
69.2 years
Avg HCC Risk Score
1.16
Gender Split
69% female / 31% male

Top Prescribed Drugs (Medicare Part D)

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

What TIMOTHY CAMPBELL, 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
Ipratropium Bromide
103
Albuterol Sulfate Hfa
Albuterol Sulfate
77
Azelastine Hcl
72
Fluticasone Propionate
65
Levocetirizine Dihydrochloride
53
Montelukast Sodium
50
Symbicort
Budesonide/Formoterol Fumarate
35
Prednisone
31
Dupixent Pen
Dupilumab
26
Breo Ellipta
Fluticasone/Vilanterol
23

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

Allergy & Immunology Physician Overview

How TIMOTHY CAMPBELL, M.D. fits within the Allergy & Immunology Physician landscape nationally.

3,390
Allergy & Immunology Physician Providers in US
52
States with Allergy & Immunology Physician
764
Avg Claims per Provider

TIMOTHY CAMPBELL, M.D.'s 722 claims are below the specialty average of 764.

Nearby Allergy & Immunology Physician Providers in Virginia

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

Compare Allergy & Immunology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is TIMOTHY CAMPBELL, M.D.'s specialty?
TIMOTHY CAMPBELL, M.D. specializes in Allergy & Immunology Physician and practices in WILLIAMSBURG, Virginia. Credentials: M.D..
How much does TIMOTHY CAMPBELL, M.D. prescribe under Medicare Part D?
In 2023, TIMOTHY CAMPBELL, M.D. wrote 722 Medicare Part D claims totaling $281K in drug costs for 164 beneficiaries.
What is TIMOTHY CAMPBELL, M.D.'s Medicare quality score?
TIMOTHY CAMPBELL, M.D. has a CMS MIPS Final Score of 54.7572/100 (Quality: 57.936, Cost: 26.3081). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is TIMOTHY CAMPBELL, M.D. located?
TIMOTHY CAMPBELL, M.D. is located at 1144 PROFESSIONAL DR, WILLIAMSBURG, VA, 23185. Phone: (757) 259-0443.
What is TIMOTHY CAMPBELL, M.D.'s NPI number?
TIMOTHY CAMPBELL, M.D.'s National Provider Identifier (NPI) is 1891923074, issued on 06/26/2009.
Does TIMOTHY CAMPBELL, M.D. prescribe more brand-name or generic drugs?
TIMOTHY CAMPBELL, M.D.'s prescribing is 33% brand-name and 67% generic drugs by claim count, with $263K in brand drug costs.
How many Allergy & Immunology Physician providers are there in the US?
There are 3,390 Allergy & Immunology Physician providers across 52 states in the US. The average Allergy & Immunology Physician provider writes 764 Medicare Part D claims per year.
What drugs does TIMOTHY CAMPBELL, M.D. prescribe most often?
Based on 2023 Medicare Part D data, TIMOTHY CAMPBELL, M.D.'s most frequently prescribed drugs include Ipratropium Bromide, Albuterol Sulfate Hfa, Azelastine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TIMOTHY CAMPBELL, M.D. accept Medicare?
TIMOTHY CAMPBELL, M.D. appears in CMS Medicare data with 722 Part D claims and 164 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TIMOTHY CAMPBELL, M.D.'s credentials?
TIMOTHY CAMPBELL, M.D.'s NPI is 1891923074 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.
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