2026 NPPES data Infectious Disease Physician NPI 1407993066 M.D.
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DAVID BROOKS, M.D.

Infectious Disease Physician in GREEN BAY, Wisconsin. 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
619
Medicare Part D claims · 162 beneficiaries · Infectious Disease Physician avg: 816
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

DAVID BROOKS, M.D. filed 619 Medicare Part D claims in 2023 as a Infectious Disease Physician in GREEN BAY, Wisconsin, prescribing 85% generic.

619
Part D claims, 2023
85%
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.

DAVID BROOKS, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

619 Top 31% higher than 69% 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%). This entry sits in this band. 800–1,000: 40,919 prescribers (3%). Above this entry. 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)

DAVID BROOKS, M.D. 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 DAVID BROOKS, M.D.?

Quality data not reported

NPI registry status

Active

Issued 01/31/2007

NPI 1407993066

Primary specialty

Infectious Disease Physician

Mid-sized

8,292 US NPIs in this specialty

Medicare Part D claims

619 24% vs specialty avg

2023 prescription claims

Specialty avg: 816

Specialty distribution in Wisconsin

How Infectious Disease Physician compares to other specialties among Wisconsin providers

Wisconsin providers

Infectious Disease Physician share within Wisconsin

1. Infectious Disease Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Infectious Disease Physician share within Wisconsin

Specialty board-certification context

Estimated specialty board-certified rate — Infectious Disease Physician (ABMS / AOA reference)

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

Est. board-certified rate (Infectious Disease Physician) — ABMS / AOA estimate

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

DAVID BROOKS, M.D. appears in the CMS NPPES registry as a Infectious Disease Physician provider holding M.D. credentials at 704 S WEBSTER AVE STE 501, GREEN BAY, WI, 54301, with a listed phone of (920) 433-6050. NPI 1407993066 was issued on 01/31/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BROOKS 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 619 prescription claims written by this provider, covering 162 Medicare beneficiaries and totaling roughly $341K in drug spend, split 15% brand-name and 85% 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.

Infectious Disease Physician is a mid-sized specialty nationwide, with 8,292 enrolled providers across 54 states and an average of 816 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

704 S WEBSTER AVE STE 501
GREEN BAY, WI 54301

Provider Details

NPI 1407993066
Specialty Infectious Disease Physician
Credentials M.D.
Gender Male
NPI Issued 01/31/2007

Hospital and facility affiliations

Facilities where DAVID BROOKS, 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.

BELLIN MEMORIAL HOSPITAL INC
GREEN BAY, WI

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Typical

DAVID BROOKS, M.D. — brand share 15.0%
Specialty average (est.)

15% brand-name claims vs 85% generic, on 619 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.

619
Total Claims
$341K
Total Drug Cost
162
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
806
Total Day Supply
18,236
Brand vs Generic
15% brand / 85% generic
Brand Drug Cost
$292K
Generic Drug Cost
$49K
Antibiotic Claims
350

Patient Demographics

Average Patient Age
70.6 years
Avg HCC Risk Score
2.62
Gender Split
42% female / 58% male
Age Distribution
<65: 33, 65-74: 72, 75-84: 40, 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 DAVID BROOKS, 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
Cephalexin
48
Biktarvy
Bictegrav/Emtricit/Tenofov Ala
44
Rifampin
42
Azithromycin
33
Ethambutol Hcl
31
Ciprofloxacin Hcl
24
Ceftriaxone
Ceftriaxone Sodium
23
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
22
Doxycycline Hyclate
21
Fluconazole
21

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

Infectious Disease Physician Overview

How DAVID BROOKS, M.D. fits within the Infectious Disease Physician landscape nationally.

8,292
Infectious Disease Physician Providers in US
54
States with Infectious Disease Physician
816
Avg Claims per Provider

DAVID BROOKS, M.D.'s 619 claims are below the specialty average of 816.

Nearby Infectious Disease Physician Providers in Wisconsin

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

Compare Infectious Disease Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is DAVID BROOKS, M.D.'s specialty?
DAVID BROOKS, M.D. specializes in Infectious Disease Physician and practices in GREEN BAY, Wisconsin. Credentials: M.D..
How much does DAVID BROOKS, M.D. prescribe under Medicare Part D?
In 2023, DAVID BROOKS, M.D. wrote 619 Medicare Part D claims totaling $341K in drug costs for 162 beneficiaries.
Where is DAVID BROOKS, M.D. located?
DAVID BROOKS, M.D. is located at 704 S WEBSTER AVE STE 501, GREEN BAY, WI, 54301. Phone: (920) 433-6050.
What is DAVID BROOKS, M.D.'s NPI number?
DAVID BROOKS, M.D.'s National Provider Identifier (NPI) is 1407993066, issued on 01/31/2007.
Does DAVID BROOKS, M.D. prescribe more brand-name or generic drugs?
DAVID BROOKS, M.D.'s prescribing is 15% brand-name and 85% generic drugs by claim count, with $292K in brand drug costs.
How many Infectious Disease Physician providers are there in the US?
There are 8,292 Infectious Disease Physician providers across 54 states in the US. The average Infectious Disease Physician provider writes 816 Medicare Part D claims per year.
What drugs does DAVID BROOKS, M.D. prescribe most often?
Based on 2023 Medicare Part D data, DAVID BROOKS, M.D.'s most frequently prescribed drugs include Cephalexin, Biktarvy, Rifampin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DAVID BROOKS, M.D. accept Medicare?
DAVID BROOKS, M.D. appears in CMS Medicare data with 619 Part D claims and 162 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DAVID BROOKS, M.D.'s credentials?
DAVID BROOKS, M.D.'s NPI is 1407993066 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.
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