NPI registry status
Active
2026 NPPES data Emergency Medicine Physician NPI 1942295928 MD
Verify on CMS → Thomas Calvert, MD
Emergency Medicine Physician in Huntsville, Alabama.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 64,463 in Emergency Medicine 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.
Prescribing volume
371
Medicare Part D claims · 175 beneficiaries · Emergency Medicine Physician avg: 352
Industry payments
$69.25
4 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Thomas Calvert, MD filed 371 Medicare Part D claims in 2023 as a Emergency Medicine Physician in Huntsville, Alabama.
- 371
- Part D claims, 2023
- Likely
- board-certified (heuristic)
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.
Thomas Calvert, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
371 Top 43% higher than 57% of 1,370,886 prescribers
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 certification likely (heuristic, not verified)
Thomas Calvert, MD 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).
What does the federal data show about Thomas Calvert, MD?
Quality data not reportedPrimary specialty
Emergency Medicine Physician
Medicare Part D claims
371 5% vs specialty avg
Specialty distribution in Alabama
How Emergency Medicine Physician compares to other specialties among Alabama 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 Emergency Medicine 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).
Thomas Calvert, MD appears in the CMS NPPES registry as an Emergency Medicine Physician provider holding MD credentials at 101 SIVLEY RD SW, Huntsville, AL, 35801, with a listed phone of (256) 265-9905. NPI 1942295928 was issued on 09/15/2005.
Medicare Part D records for calendar year 2023 show 371 prescription claims written by this provider, covering 175 Medicare beneficiaries and totaling roughly $15K in drug spend, with an opioid prescribing rate of 11.1%.
Emergency Medicine Physician is a high-volume specialty nationwide, with 64,463 enrolled providers across 56 states and an average of 352 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
Provider Details
| NPI | 1942295928 |
|---|---|
| Specialty | Emergency Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 09/15/2005 |
Hospital and facility affiliations
Facilities where Thomas Calvert, MD 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.
Emergency Physicians Group
Huntsville, AL
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 Thomas Calvert, MD. Source: openpaymentsdata.cms.gov.
Total received
$69
Largest payer
Antares Pharma, Inc.
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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
371
Total Claims
$15K
Total Drug Cost
175
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 468
- Total Day Supply
- 9,553
- Generic Drug Cost
- $9K
- Opioid Claims
- 41 (11.1% rate)
- Antibiotic Claims
- 46
Patient Demographics
- Average Patient Age
- 70.5 years
- Avg HCC Risk Score
- 1.56
- Gender Split
- 62% female / 38% male
- Age Distribution
- <65: 40, 65-74: 74, 75-84: 41, 85+: 20
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Thomas Calvert, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Estradiol (Twice W…
Estradiol (Twice Weekly)
44 claims
- Oxycodone-Acetamin…
Oxycodone-Acetaminophen
27 claims
- Ondansetron Hcl
Ondansetron Hcl
20 claims
- Testosterone Cypio… 15
Testosterone Cypionate
15 claims
- Naproxen 14
Naproxen
14 claims
- Doxycycline Hyclate 13
Doxycycline Hyclate
13 claims
| Drug | Claims |
|---|---|
| Estradiol (Twice Weekly) Estradiol | 44 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 27 |
| Ondansetron Hcl | 20 |
| Testosterone Cypionate | 15 |
| Naproxen | 14 |
| Doxycycline Hyclate | 13 |
| Progesterone "Progesterone | N/A |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Emergency Medicine Physician Overview
How Thomas Calvert, MD fits within the Emergency Medicine Physician landscape nationally.
64,463
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider
Thomas Calvert, MD's 371 claims are above the specialty average of 352.
Nearby Emergency Medicine Physician Providers in Alabama
Other clinicians with the same primary specialty enrolled in Alabama, drawn from the same CMS NPPES roster as Calvert.
Dr. Donald Abele
MD
Birmingham, AL
Dr. Dylana Adams
MD
Alabaster, AL
Dr. Elizabeth Adams
M.D.
Birmingham, AL
Dr. William Admire
DO
Mobile, AL
Dr. Gregory Adrian
DO
Birmingham, AL
Compare Emergency Medicine 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 Alabama medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Emergency Medicine 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.
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Medical Specialties Explained
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How insurance networks affect your costs
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Explore Alabama
Frequently Asked Questions
What is Thomas Calvert, MD's specialty? ▼
Thomas Calvert, MD specializes in Emergency Medicine Physician and practices in Huntsville, Alabama. Credentials: MD.
How much does Thomas Calvert, MD prescribe under Medicare Part D? ▼
In 2023, Thomas Calvert, MD wrote 371 Medicare Part D claims totaling $15K in drug costs for 175 beneficiaries.
Where is Thomas Calvert, MD located? ▼
Thomas Calvert, MD is located at 101 SIVLEY RD SW, Huntsville, AL, 35801. Phone: (256) 265-9905.
What is Thomas Calvert, MD's NPI number? ▼
Thomas Calvert, MD's National Provider Identifier (NPI) is 1942295928, issued on 09/15/2005.
Does Thomas Calvert, MD prescribe opioids? ▼
Yes, Thomas Calvert, MD had 41 opioid claims in 2023 with an opioid prescribing rate of 11.1%.
How many Emergency Medicine Physician providers are there in the US? ▼
There are 64,463 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does Thomas Calvert, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Thomas Calvert, MD's most frequently prescribed drugs include Estradiol (Twice Weekly), Oxycodone-Acetaminophen, Ondansetron Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Thomas Calvert, MD accept Medicare? ▼
Thomas Calvert, MD appears in CMS Medicare data with 371 Part D claims and 175 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Thomas Calvert, MD's credentials? ▼
Thomas Calvert, MD's NPI is 1942295928 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.
- 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
Compiled from official public sources by the PlainDoctor editorial team.
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 May 2026.