2026 NPPES data Allergy & Immunology Physician NPI 1851895650
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LAUREN FRANZBLAU

Allergy & Immunology Physician in DALLAS, Texas. 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
248
Medicare Part D claims · 49 beneficiaries · Allergy & Immunology Physician avg: 764
Industry payments
$643.29
7 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: LAUREN FRANZBLAU is a Allergy & Immunology Physician ([object Object]) practicing in DALLAS, Texas with a Medicare Part D prescribing footprint of 248 claims across 49 beneficiaries . Industry payments of $643.29 across 7 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: LAUREN FRANZBLAU filed 248 Medicare Part D claims in 2023 across DALLAS, Texas. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

LAUREN FRANZBLAU 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).

LAUREN FRANZBLAU at a glance

Quality data not reported

NPI registry status

Active

Issued 03/19/2018

NPI 1851895650

Primary specialty

Allergy & Immunology Physician

Niche

3,390 US NPIs in this specialty

Medicare Part D claims

248 68% vs specialty avg

2023 prescription claims

Specialty avg: 764

Specialty distribution in Texas

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

Texas providers

Allergy & Immunology Physician share within Texas

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

Specialty board-certification context

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

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

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

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

LAUREN FRANZBLAU is a Allergy & Immunology Physician provider practicing in DALLAS, Texas, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1851895650. 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.

LAUREN FRANZBLAU appears in the CMS NPPES registry as a Allergy & Immunology Physician provider at 5939 HARRY HINES BLVD, DALLAS, TX, 75390, with a listed phone of (214) 645-6616. NPI 1851895650 was issued on 03/19/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FRANZBLAU 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 248 prescription claims written by this provider, covering 49 Medicare beneficiaries and totaling roughly $76K in drug spend. 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 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

5939 HARRY HINES BLVD
DALLAS, TX 75390

Provider Details

NPI 1851895650
Specialty Allergy & Immunology Physician
Gender Female
NPI Issued 03/19/2018

Hospital and facility affiliations

Facilities where LAUREN FRANZBLAU 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 TEXAS SOUTHWESTERN MEDICAL CENTER AT DALLAS
DALLAS, TX

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 LAUREN FRANZBLAU. Source: openpaymentsdata.cms.gov.

Total received

$643

Largest payer

AstraZeneca Pharmaceuticals LP

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.

License & disciplinary context — Texas TMB 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~77K Texas medical licensees in 2023 — they are NOT specific to LAUREN FRANZBLAU. To verify LAUREN FRANZBLAU's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

248
Total Claims
$76K
Total Drug Cost
49
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
334
Total Day Supply
9,300
Generic Drug Cost
$9K

Patient Demographics

Average Patient Age
66.6 years
Avg HCC Risk Score
1.58
Gender Split
78% female / 22% male
Age Distribution
<65: 18, 65-74: 25, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Fluticasone Propionate
42
Albuterol Sulfate Hfa
Albuterol Sulfate
34
Azelastine Hcl
30
Advair Diskus
Fluticasone Propion/Salmeterol
16
Azelastine-Fluticasone
Azelastine/Fluticasone
14

* 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 LAUREN FRANZBLAU 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

LAUREN FRANZBLAU's 248 claims are below the specialty average of 764.

Nearby Allergy & Immunology Physician Providers in Texas

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

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

Frequently Asked Questions

What is LAUREN FRANZBLAU's specialty?
LAUREN FRANZBLAU specializes in Allergy & Immunology Physician and practices in DALLAS, Texas.
How much does LAUREN FRANZBLAU prescribe under Medicare Part D?
In 2023, LAUREN FRANZBLAU wrote 248 Medicare Part D claims totaling $76K in drug costs for 49 beneficiaries.
Where is LAUREN FRANZBLAU located?
LAUREN FRANZBLAU is located at 5939 HARRY HINES BLVD, DALLAS, TX, 75390. Phone: (214) 645-6616.
What is LAUREN FRANZBLAU's NPI number?
LAUREN FRANZBLAU's National Provider Identifier (NPI) is 1851895650, issued on 03/19/2018.
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 LAUREN FRANZBLAU prescribe most often?
Based on 2023 Medicare Part D data, LAUREN FRANZBLAU's most frequently prescribed drugs include Fluticasone Propionate, Albuterol Sulfate Hfa, Azelastine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LAUREN FRANZBLAU accept Medicare?
LAUREN FRANZBLAU appears in CMS Medicare data with 248 Part D claims and 49 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LAUREN FRANZBLAU's credentials?
LAUREN FRANZBLAU's NPI is 1851895650. 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