2026 NPPES data Hematology & Oncology Physician NPI 1851413140 MD
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Alva Weir, MD

Hematology & Oncology Physician in Memphis, Tennessee.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 11,215 in Hematology & Oncology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Industry payments
$120.16
2 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Alva Weir, MD is a Hematology & Oncology Physician in Memphis, Tennessee, listed in the federal CMS National Provider Identifier registry.

$120.16
industry payments (Sunshine Act)

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.

Board-eligible specialty (heuristic, not verified)

Alva Weir, 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).

What does the federal data show about Alva Weir, MD?

Quality data not reported

NPI registry status

Active

Issued 04/06/2007

NPI 1851413140

Primary specialty

Hematology & Oncology Physician

Mid-sized

11,215 US NPIs in this specialty

Specialty distribution in Tennessee

How Hematology & Oncology Physician compares to other specialties among Tennessee providers

Tennessee providers
Family Nurse Practitioner - 6.4%Family Nurse Practitioner6.4%Pharmacist - 5.9%Pharmacist5.9%Student in an Organized Health Care Education/Training Program - 4.6%Student in an Organized Health Care Education/Training Program4.6%Physical Therapist - 4.2%Physical Therapist4.2%Behavior Technician - 4.2%Behavior Technician4.2%Registered Nurse - 3.9%Registered Nurse3.9%Hematology & Oncology Physician - 0.2%Hematology & Oncology Physician0.2%
Largest specialties in Tennessee (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Hematology & Oncology Physician. Verify directly:

How MIPS and board certification work

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).

Alva Weir, MD appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding MD credentials at 100 N HUMPHREYS BLVD, Memphis, TN, 38120, with a listed phone of (901) 606-0055. NPI 1851413140 was issued on 04/06/2007.

Medicare Part D prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal, many Hematology & Oncology Physician providers operate outside Part D entirely.

Hematology & Oncology Physician is a mid-sized specialty nationwide, with 11,215 enrolled providers across 54 states and an average of 847 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

100 N HUMPHREYS BLVD
Memphis, TN 38120

Provider Details

NPI 1851413140
Specialty Hematology & Oncology Physician
Credentials MD
Gender Male
NPI Issued 04/06/2007

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 Alva Weir, MD. Source: openpaymentsdata.cms.gov.

Total received

$120

Largest payer

SEAGEN INC.

Most common payment type

Education

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.

Hematology & Oncology Physician Overview

How Alva Weir, MD fits within the Hematology & Oncology Physician landscape nationally.

11,215
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider

Nearby Hematology & Oncology Physician Providers in Tennessee

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

Compare Hematology & Oncology Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Tennessee medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Hematology & Oncology Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Alva Weir, MD's specialty?
Alva Weir, MD specializes in Hematology & Oncology Physician and practices in Memphis, Tennessee. Credentials: MD.
Where is Alva Weir, MD located?
Alva Weir, MD is located at 100 N HUMPHREYS BLVD, Memphis, TN, 38120. Phone: (901) 606-0055.
What is Alva Weir, MD's NPI number?
Alva Weir, MD's National Provider Identifier (NPI) is 1851413140, issued on 04/06/2007.
How many Hematology & Oncology Physician providers are there in the US?
There are 11,215 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 847 Medicare Part D claims per year.
Does Alva Weir, MD accept Medicare?
Alva Weir, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Alva Weir, MD's credentials?
Alva Weir, MD's NPI is 1851413140 with credentials 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

View source datasets and methodology notes
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.
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

Compiled from official public sources by the PlainDoctor editorial team.