NPI registry status
Active
2026 NPPES data Clinical & Laboratory Immunology (Allergy & Immunology) Physician NPI 1639599806 MBBS
Verify on CMS → Simon Mallal, MBBS
Clinical & Laboratory Immunology (Allergy & Immunology) Physician in Nashville, 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 97 in Clinical & Laboratory Immunology (Allergy & Immunology) 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
$6.3K
10 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Simon Mallal, MBBS is a Clinical & Laboratory Immunology (Allergy & Immunology) Physician in Nashville, Tennessee, listed in the federal CMS National Provider Identifier registry.
- $6.3K
- industry payments (Sunshine Act)
- #521
- Clinical & Laboratory Immunology (Allergy & Immunology) Physician rank among Tennessee specialties
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.
Federal trust snapshot
What official records show about Simon Mallal, MBBS
Active federal NPI registry listing — verify license, disciplinary history, and board certification with official sources before relying on this profile.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1639599806), first enumerated 04/25/2014.
Source: CMS NPPES
- Not in federal data
Medicare Part D participation
No 2023 Medicare Part D prescribing volume appears in the CMS public file for this NPI (may reflect specialty, new enrollment, or non-prescribing role).
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Reported
Industry payment transparency
$6.3K in reported industry payments (10 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1639599806 · Clinical & Laboratory Immunology (Allergy & Immunology) Physician
NPI-10 · ENUM-MID · TAX-TRACE · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1639599806
- ENUM-MID 2014
- TAX-TRACE 97
- RX-NONE No Part D
- BOOK-THIN 1 in Tennessee
- PHOTO-ENUM Elizabeth Smith · 2014
◑
Board-eligible specialty (heuristic, not verified)
Simon Mallal, MBBS 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 Simon Mallal, MBBS?
Quality data not reportedPrimary specialty
Clinical & Laboratory Immunology (Allergy & Immunology) Physician
Specialty distribution in Tennessee
How Clinical & Laboratory Immunology (Allergy & Immunology) Physician compares to other specialties among Tennessee 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 Clinical & Laboratory Immunology (Allergy & Immunology) 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).
Practice Address
Provider Details
| NPI | 1639599806 |
|---|---|
| Specialty | Clinical & Laboratory Immunology (Allergy & Immunology) Physician |
| Credentials | MBBS |
| Gender | Male |
| NPI Issued | 04/25/2014 |
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 Simon Mallal, MBBS. Source: openpaymentsdata.cms.gov.
Total received
$6.3K
Largest payer
Merck Sharp & Dohme LLC
Most common payment type
Travel and Lodging
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.
More Clinical & Laboratory Immunology (Allergy & Immunology) Physician in TN →
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Clinical & Laboratory Immunology (Allergy & Immunology) Physician Overview
How Simon Mallal, MBBS fits within the Clinical & Laboratory Immunology (Allergy & Immunology) Physician landscape nationally.
97
Clinical & Laboratory Immunology (Allergy & Immunology) Physician Providers in US
29
States with Clinical & Laboratory Immunology (Allergy & Immunology) Physician
773
Avg Claims per Provider
Nationwide Clinical & Laboratory Immunology (Allergy & Immunology) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Mallal, both outside Tennessee so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2014)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Frequently Asked Questions
What is Simon Mallal, MBBS's specialty? ▼
Simon Mallal, MBBS specializes in Clinical & Laboratory Immunology (Allergy & Immunology) Physician and practices in Nashville, Tennessee. Credentials: MBBS.
Where is Simon Mallal, MBBS located? ▼
Simon Mallal, MBBS is located at 1161 21ST AVE S, Nashville, TN, 37232. Phone: (615) 322-2035.
What is Simon Mallal, MBBS's NPI number? ▼
Simon Mallal, MBBS's National Provider Identifier (NPI) is 1639599806, issued on 04/25/2014.
How many Clinical & Laboratory Immunology (Allergy & Immunology) Physician providers are there in the US? ▼
There are 97 Clinical & Laboratory Immunology (Allergy & Immunology) Physician providers across 29 states in the US. The average Clinical & Laboratory Immunology (Allergy & Immunology) Physician provider writes 773 Medicare Part D claims per year.
Does Simon Mallal, MBBS accept Medicare? ▼
Simon Mallal, MBBS appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Simon Mallal, MBBS's credentials? ▼
Simon Mallal, MBBS's NPI is 1639599806 with credentials MBBS. 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.