2026 NPPES data Allergy & Immunology (Internal Medicine) Physician NPI 1457094617 DO
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LAUREN MAZIN, DO

Allergy & Immunology (Internal Medicine) Physician in RICHMOND, 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
357
Medicare Part D claims · 49 beneficiaries · Allergy & Immunology (Internal Medicine) Physician avg: 798

What the federal data shows

LAUREN MAZIN, DO filed 357 Medicare Part D claims in 2023 as a Allergy & Immunology (Internal Medicine) Physician in RICHMOND, Virginia.

357
Part D claims, 2023

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.

LAUREN MAZIN, DO's Medicare Part D volume vs every U.S. prescriber

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

357 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 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-eligible specialty (heuristic — not verified)

LAUREN MAZIN, DO 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).

What does the federal data show about LAUREN MAZIN, DO?

Quality data not reported

NPI registry status

Active

Issued 04/15/2022

NPI 1457094617

Primary specialty

Allergy & Immunology (Internal Medicine) Physician

Niche

520 US NPIs in this specialty

Medicare Part D claims

357 55% vs specialty avg

2023 prescription claims

Specialty avg: 798

Specialty distribution in Virginia

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

Virginia providers

Allergy & Immunology (Internal Medicine) Physician share within Virginia

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

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).

LAUREN MAZIN, DO is a Allergy & Immunology (Internal Medicine) Physician provider practicing in RICHMOND, Virginia, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: DO. NPI: 1457094617. 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 MAZIN, DO appears in the CMS NPPES registry as a Allergy & Immunology (Internal Medicine) Physician provider holding DO credentials at 1000 E BROAD ST, RICHMOND, VA, 23219, with a listed phone of (804) 828-2467. NPI 1457094617 was issued on 04/15/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MAZIN 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 357 prescription claims written by this provider, covering 49 Medicare beneficiaries and totaling roughly $48K 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 (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

1000 E BROAD ST
RICHMOND, VA 23219

Provider Details

NPI 1457094617
Specialty Allergy & Immunology (Internal Medicine) Physician
Credentials DO
Gender Female
NPI Issued 04/15/2022

Medicare Part D Prescribing Data

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

357
Total Claims
$48K
Total Drug Cost
49
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
682
Total Day Supply
19,704
Generic Drug Cost
$3K

Patient Demographics

Average Patient Age
62.2 years
Avg HCC Risk Score
2.00
Gender Split
59% female / 41% male
Age Distribution
<65: 19, 65-74: 23, 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
Amlodipine Besylate
21
Atorvastatin Calcium
20
Metformin Hcl
18
Levothyroxine Sodium
17
Lisinopril
16
Allopurinol
12
Gabapentin
12
Furosemide
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 LAUREN MAZIN, DO 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

LAUREN MAZIN, DO's 357 claims are below the specialty average of 798.

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

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

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

Frequently Asked Questions

What is LAUREN MAZIN, DO's specialty?
LAUREN MAZIN, DO specializes in Allergy & Immunology (Internal Medicine) Physician and practices in RICHMOND, Virginia. Credentials: DO.
How much does LAUREN MAZIN, DO prescribe under Medicare Part D?
In 2023, LAUREN MAZIN, DO wrote 357 Medicare Part D claims totaling $48K in drug costs for 49 beneficiaries.
Where is LAUREN MAZIN, DO located?
LAUREN MAZIN, DO is located at 1000 E BROAD ST, RICHMOND, VA, 23219. Phone: (804) 828-2467.
What is LAUREN MAZIN, DO's NPI number?
LAUREN MAZIN, DO's National Provider Identifier (NPI) is 1457094617, issued on 04/15/2022.
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 LAUREN MAZIN, DO prescribe most often?
Based on 2023 Medicare Part D data, LAUREN MAZIN, DO's most frequently prescribed drugs include Amlodipine Besylate, Atorvastatin Calcium, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LAUREN MAZIN, DO accept Medicare?
LAUREN MAZIN, DO appears in CMS Medicare data with 357 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 MAZIN, DO's credentials?
LAUREN MAZIN, DO's NPI is 1457094617 with credentials DO. 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