NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1801258025 DO
Verify on CMS → Faisal Siddiqi, DO
Internal Medicine Physician in Houston, 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 172,737 in 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
402
Medicare Part D claims · 146 beneficiaries · Internal Medicine Physician avg: 3K
What the federal data shows
Faisal Siddiqi, DO filed 402 Medicare Part D claims in 2023 as an Internal Medicine Physician in Houston, Texas.
- 402
- Part D claims, 2023
- Likely
- board-certified (heuristic)
- ≥62nd
- pct by Part D claim volume (lower-bound band)
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.
Faisal Siddiqi, DO's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
402 ≥ 62nd percentile 62% of 1,370,886 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Faisal Siddiqi, DO 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 Faisal Siddiqi, DO?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
402 85% vs specialty avg
Specialty distribution in Texas
How 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 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).
Faisal Siddiqi, DO appears in the CMS NPPES registry as an Internal Medicine Physician provider holding DO credentials at 2727 W HOLCOMBE BLVD, Houston, TX, 77025, with a listed phone of (713) 442-0000. NPI 1801258025 was issued on 03/26/2016.
Medicare Part D records for calendar year 2023 show 402 prescription claims written by this provider, covering 146 Medicare beneficiaries and totaling roughly $26K in drug spend, with an opioid prescribing rate of 7.2%.
Internal Medicine Physician is a high-volume specialty nationwide, with 172,737 enrolled providers across 56 states and an average of 2,716 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 | 1801258025 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | DO |
| Gender | Male |
| NPI Issued | 03/26/2016 |
Hospital and facility affiliations
Facilities where Faisal Siddiqi, DO 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.
Hospital Medicine Services OF TX, PLLC
Houston, 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).
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 Faisal Siddiqi, DO. To verify Faisal Siddiqi, DO'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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
402
Total Claims
$26K
Total Drug Cost
146
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 468
- Total Day Supply
- 10,872
- Generic Drug Cost
- $4K
- Opioid Claims
- 29 (7.2% rate)
- Antibiotic Claims
- 50
Patient Demographics
- Average Patient Age
- 70.1 years
- Avg HCC Risk Score
- 2.38
- Gender Split
- 47% female / 53% male
- Age Distribution
- <65: 34, 65-74: 56, 75-84: 41, 85+: 15
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Faisal Siddiqi, DO prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
21 claims
- Carvedilol
Carvedilol
16 claims
- Prednisone
Prednisone
16 claims
- Amlodipine Besylate
Amlodipine Besylate
14 claims
- Furosemide
Furosemide
14 claims
- Hydralazine Hcl
Hydralazine Hcl
14 claims
- Tramadol Hcl
Tramadol Hcl
14 claims
- Levetiracetam
Levetiracetam
13 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 21 |
| Carvedilol | 16 |
| Prednisone | 16 |
| Amlodipine Besylate | 14 |
| Furosemide | 14 |
| Hydralazine Hcl | 14 |
| Tramadol Hcl | 14 |
| Levetiracetam | 13 |
| Losartan Potassium | 13 |
| Nifedipine Er Nifedipine | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How Faisal Siddiqi, DO fits within the Internal Medicine Physician landscape nationally.
172,737
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Faisal Siddiqi, DO's 402 claims are below the specialty average of 2,716.
Nationwide Internal Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Siddiqi, both outside Texas so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2016)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Internal Medicine Physician Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Siddiqi.
One of 10,926 Internal Medicine Physician providers enrolled in Texas, 5 are shown here.
Dr. Muhammad A. Sattar
MD
Dallas, TX
Anunaya Aashish
Denton, TX
Dr. Queenie Ann Abad
M.D.
San Antonio, TX
Dr. Fuad Abaleka
M.D
Lubbock, TX
Dr. Carol Abalihi
M.D.
El Paso, TX
Compare Internal 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 Texas medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby 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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Frequently Asked Questions
What is Faisal Siddiqi, DO's specialty? ▼
Faisal Siddiqi, DO specializes in Internal Medicine Physician and practices in Houston, Texas. Credentials: DO.
How much does Faisal Siddiqi, DO prescribe under Medicare Part D? ▼
In 2023, Faisal Siddiqi, DO wrote 402 Medicare Part D claims totaling $26K in drug costs for 146 beneficiaries.
Where is Faisal Siddiqi, DO located? ▼
Faisal Siddiqi, DO is located at 2727 W HOLCOMBE BLVD, Houston, TX, 77025. Phone: (713) 442-0000.
What is Faisal Siddiqi, DO's NPI number? ▼
Faisal Siddiqi, DO's National Provider Identifier (NPI) is 1801258025, issued on 03/26/2016.
Does Faisal Siddiqi, DO prescribe opioids? ▼
Yes, Faisal Siddiqi, DO had 29 opioid claims in 2023 with an opioid prescribing rate of 7.2%.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,737 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Faisal Siddiqi, DO prescribe most often? ▼
Based on 2023 Medicare Part D data, Faisal Siddiqi, DO's most frequently prescribed drugs include Atorvastatin Calcium, Carvedilol, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Faisal Siddiqi, DO accept Medicare? ▼
Faisal Siddiqi, DO appears in CMS Medicare data with 402 Part D claims and 146 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Faisal Siddiqi, DO's credentials? ▼
Faisal Siddiqi, DO's NPI is 1801258025 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
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
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.