2026 NPPES data Allergy & Immunology (Internal Medicine) Physician NPI 1134689086 PHD, MD
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DANIELLE FLOOD, PHD, MD

Allergy & Immunology (Internal Medicine) Physician in BETHESDA, Maryland. 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
170
Medicare Part D claims · 23 beneficiaries · Allergy & Immunology (Internal Medicine) Physician avg: 798
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: DANIELLE FLOOD, PHD, MD is a Allergy & Immunology (Internal Medicine) Physician ([object Object]) practicing in BETHESDA, Maryland with a Medicare Part D prescribing footprint of 170 claims across 23 beneficiaries — 11% brand-name prescribing .

What stands out: DANIELLE FLOOD, PHD, MD filed 170 Medicare Part D claims in 2023 across BETHESDA, Maryland. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

DANIELLE FLOOD, PHD, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

DANIELLE FLOOD, PHD, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 03/25/2019

NPI 1134689086

Primary specialty

Allergy & Immunology (Internal Medicine) Physician

Niche

520 US NPIs in this specialty

Medicare Part D claims

170 79% vs specialty avg

2023 prescription claims

Specialty avg: 798

Specialty distribution in Maryland

How Allergy & Immunology (Internal Medicine) Physician compares to other specialties among Maryland providers

Maryland providers

Allergy & Immunology (Internal Medicine) Physician share within Maryland

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

Specialty board-certification context

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

Quality data not reported
Est. board-certified rate
78%
Allergy & Immunology (Internal Medicine) Physician ABMS/AOA estimate

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

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

DANIELLE FLOOD, PHD, MD is a Allergy & Immunology (Internal Medicine) Physician provider practicing in BETHESDA, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PHD, MD. NPI: 1134689086. 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.

DANIELLE FLOOD, PHD, MD appears in the CMS NPPES registry as a Allergy & Immunology (Internal Medicine) Physician provider holding PHD, MD credentials at 31 CENTER DR #7A03, BETHESDA, MD, 20892, with a listed phone of (301) 496-2263. NPI 1134689086 was issued on 03/25/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FLOOD 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 170 prescription claims written by this provider, covering 23 Medicare beneficiaries and totaling roughly $26K in drug spend, split 11% brand-name and 89% 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.

Allergy & Immunology (Internal Medicine) Physician is a narrow specialty nationwide, with 520 enrolled providers across 48 states and an average of 798 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

31 CENTER DR #7A03
BETHESDA, MD 20892

Provider Details

NPI 1134689086
Specialty Allergy & Immunology (Internal Medicine) Physician
Credentials PHD, MD
Gender Female
NPI Issued 03/25/2019

Brand vs generic prescribing mix · Typical

DANIELLE FLOOD, PHD, MD — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 170 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.

170
Total Claims
$26K
Total Drug Cost
23
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
298
Total Day Supply
8,678
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$19K
Generic Drug Cost
$7K

Patient Demographics

Average Patient Age
67.8 years
Avg HCC Risk Score
1.92

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Tamsulosin Hcl
14
Amlodipine Besylate
12
Febuxostat
11

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

Allergy & Immunology (Internal Medicine) Physician Overview

How DANIELLE FLOOD, PHD, MD fits within the Allergy & Immunology (Internal Medicine) Physician landscape nationally.

520
Allergy & Immunology (Internal Medicine) Physician Providers in US
48
States with Allergy & Immunology (Internal Medicine) Physician
798
Avg Claims per Provider

DANIELLE FLOOD, PHD, MD's 170 claims are below the specialty average of 798.

Nearby Allergy & Immunology (Internal Medicine) Physician Providers in Maryland

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

Compare Allergy & Immunology (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is DANIELLE FLOOD, PHD, MD's specialty?
DANIELLE FLOOD, PHD, MD specializes in Allergy & Immunology (Internal Medicine) Physician and practices in BETHESDA, Maryland. Credentials: PHD, MD.
How much does DANIELLE FLOOD, PHD, MD prescribe under Medicare Part D?
In 2023, DANIELLE FLOOD, PHD, MD wrote 170 Medicare Part D claims totaling $26K in drug costs for 23 beneficiaries.
Where is DANIELLE FLOOD, PHD, MD located?
DANIELLE FLOOD, PHD, MD is located at 31 CENTER DR #7A03, BETHESDA, MD, 20892. Phone: (301) 496-2263.
What is DANIELLE FLOOD, PHD, MD's NPI number?
DANIELLE FLOOD, PHD, MD's National Provider Identifier (NPI) is 1134689086, issued on 03/25/2019.
Does DANIELLE FLOOD, PHD, MD prescribe more brand-name or generic drugs?
DANIELLE FLOOD, PHD, MD's prescribing is 11% brand-name and 89% generic drugs by claim count, with $19K in brand drug costs.
How many Allergy & Immunology (Internal Medicine) Physician providers are there in the US?
There are 520 Allergy & Immunology (Internal Medicine) Physician providers across 48 states in the US. The average Allergy & Immunology (Internal Medicine) Physician provider writes 798 Medicare Part D claims per year.
What drugs does DANIELLE FLOOD, PHD, MD prescribe most often?
Based on 2023 Medicare Part D data, DANIELLE FLOOD, PHD, MD's most frequently prescribed drugs include Tamsulosin Hcl, Amlodipine Besylate, Febuxostat. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DANIELLE FLOOD, PHD, MD accept Medicare?
DANIELLE FLOOD, PHD, MD appears in CMS Medicare data with 170 Part D claims and 23 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DANIELLE FLOOD, PHD, MD's credentials?
DANIELLE FLOOD, PHD, MD's NPI is 1134689086 with credentials PHD, 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