NPI registry status
Active
2026 NPPES data Allergy & Immunology (Internal Medicine) Physician NPI 1487742383 MD
Verify on CMS → Mohammad Siddiqui, MD
Allergy & Immunology (Internal Medicine) Physician in Beaumont, Texas.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 517 in Allergy & Immunology (Internal 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
4K
Medicare Part D claims · 698 beneficiaries · Allergy & Immunology (Internal Medicine) Physician avg: 798
Generic prescribing
49%
generic claims · 50% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$768.95
39 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Mohammad Siddiqui, MD filed 3,885 Medicare Part D claims in 2023 as a Allergy & Immunology (Internal Medicine) Physician in Beaumont, Texas, prescribing 49% generic.
- 4K
- Part D claims, 2023
- 49%
- generic prescribing
- 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.
Mohammad Siddiqui, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,885 Top 9% higher than 91% 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)
Mohammad Siddiqui, 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 Mohammad Siddiqui, MD?
Quality data not reportedPrimary specialty
Allergy & Immunology (Internal Medicine) Physician
Medicare Part D claims
3,885 387% vs specialty avg
Specialty distribution in Texas
How Allergy & Immunology (Internal Medicine) Physician compares to other specialties among Texas 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 Allergy & Immunology (Internal 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).
Mohammad Siddiqui, MD appears in the CMS NPPES registry as an Allergy & Immunology (Internal Medicine) Physician provider holding MD credentials at 3480 COLLEGE ST, Beaumont, TX, 77701, with a listed phone of (409) 813-1677. NPI 1487742383 was issued on 10/10/2006.
Medicare Part D records for calendar year 2023 show 3,885 prescription claims written by this provider, covering 698 Medicare beneficiaries and totaling roughly $2.4 million in drug spend, split 50% brand-name and 49% generic by claim count.
Allergy & Immunology (Internal Medicine) Physician is a narrow specialty nationwide, with 517 enrolled providers across 47 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
Provider Details
| NPI | 1487742383 |
|---|---|
| Specialty | Allergy & Immunology (Internal Medicine) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 10/10/2006 |
Hospital and facility affiliations
Facilities where Mohammad Siddiqui, 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.
Diagnostic Group Integrated Healthcare System, PLLC
Beaumont, 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 Mohammad Siddiqui, MD. Source: openpaymentsdata.cms.gov.
Total received
$769
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 Mohammad Siddiqui, MD. To verify Mohammad Siddiqui, MD'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.
Brand vs generic prescribing mix · Brand-heavy
Mohammad Siddiqui, MD - brand share 50.0%
Allergy & Immunology (Internal Medicine) Physician average
50% brand-name claims vs 49% generic, on 3,885 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
3,885
Total Claims
$2.4M
Total Drug Cost
698
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,839
- Total Day Supply
- 130,387
- Brand vs Generic
- 50% brand / 49% generic
- Brand Drug Cost
- $2.3M
- Generic Drug Cost
- $158K
- Antibiotic Claims
- 247
Patient Demographics
- Average Patient Age
- 71.7 years
- Avg HCC Risk Score
- 2.36
- Gender Split
- 60% female / 40% male
- Age Distribution
- <65: 124, 65-74: 303, 75-84: 219, 85+: 52
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mohammad Siddiqui, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Trelegy Ellipta
Trelegy Ellipta
539 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
443 claims
- Breo Ellipta
Breo Ellipta
250 claims
- Montelukast Sodium
Montelukast Sodium
218 claims
- Roflumilast 172
Roflumilast
172 claims
- Breztri Aerosphere 158
Breztri Aerosphere
158 claims
- Fluticasone Propio… 152
Fluticasone Propionate
152 claims
- Prednisone 95
Prednisone
95 claims
| Drug | Claims |
|---|---|
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 539 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 443 |
| Breo Ellipta Fluticasone/Vilanterol | 250 |
| Montelukast Sodium | 218 |
| Roflumilast | 172 |
| Breztri Aerosphere Budesonide/Glycopyr/Formoterol | 158 |
| Fluticasone Propionate | 152 |
| Prednisone | 95 |
| Dupixent Pen Dupilumab | 84 |
| Ventolin Hfa Albuterol Sulfate | 84 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Allergy & Immunology (Internal Medicine) Physician in TX →
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Compare specialties →
Allergy & Immunology (Internal Medicine) Physician Overview
How Mohammad Siddiqui, MD fits within the Allergy & Immunology (Internal Medicine) Physician landscape nationally.
517
Allergy & Immunology (Internal Medicine) Physician Providers in US
47
States with Allergy & Immunology (Internal Medicine) Physician
798
Avg Claims per Provider
Mohammad Siddiqui, MD's 3,885 claims are above the specialty average of 798.
Nearby Allergy & Immunology (Internal Medicine) Physician Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Siddiqui.
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 Texas medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Allergy & Immunology (Internal 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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Understanding Medicare Claims Data
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Frequently Asked Questions
What is Mohammad Siddiqui, MD's specialty? ▼
Mohammad Siddiqui, MD specializes in Allergy & Immunology (Internal Medicine) Physician and practices in Beaumont, Texas. Credentials: MD.
How much does Mohammad Siddiqui, MD prescribe under Medicare Part D? ▼
In 2023, Mohammad Siddiqui, MD wrote 3,885 Medicare Part D claims totaling $2.4M in drug costs for 698 beneficiaries.
Where is Mohammad Siddiqui, MD located? ▼
Mohammad Siddiqui, MD is located at 3480 COLLEGE ST, Beaumont, TX, 77701. Phone: (409) 813-1677.
What is Mohammad Siddiqui, MD's NPI number? ▼
Mohammad Siddiqui, MD's National Provider Identifier (NPI) is 1487742383, issued on 10/10/2006.
Does Mohammad Siddiqui, MD prescribe more brand-name or generic drugs? ▼
Mohammad Siddiqui, MD's prescribing is 50% brand-name and 49% generic drugs by claim count, with $2.3M in brand drug costs.
How many Allergy & Immunology (Internal Medicine) Physician providers are there in the US? ▼
There are 517 Allergy & Immunology (Internal Medicine) Physician providers across 47 states in the US. The average Allergy & Immunology (Internal Medicine) Physician provider writes 798 Medicare Part D claims per year.
What drugs does Mohammad Siddiqui, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Mohammad Siddiqui, MD's most frequently prescribed drugs include Trelegy Ellipta, Albuterol Sulfate Hfa, Breo Ellipta. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mohammad Siddiqui, MD accept Medicare? ▼
Mohammad Siddiqui, MD appears in CMS Medicare data with 3,885 Part D claims and 698 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mohammad Siddiqui, MD's credentials? ▼
Mohammad Siddiqui, MD's NPI is 1487742383 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.