NPI registry status
Active
2026 NPPES data Contractor NPI 1629150487 MD
Verify on CMS → John Nemecek, MD
Contractor 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 8,697 in Contractor, 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
5K
Medicare Part D claims · 227 beneficiaries · Contractor avg: 927
Generic prescribing
54%
generic claims · 46% brand-name · higher generic rates reduce patient out-of-pocket costs
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
John Nemecek, MD filed 5,041 Medicare Part D claims in 2023 as a Contractor in Houston, Texas, prescribing 54% generic.
- 5K
- Part D claims, 2023
- 54%
- generic prescribing
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.
John Nemecek, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
5,041 Top 6% higher than 94% 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
What does the federal data show about John Nemecek, MD?
Quality data not reportedPrimary specialty
Contractor
Medicare Part D claims
5,041 5× vs specialty avg
Specialty distribution in Texas
How Contractor 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 Contractor. 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).
John Nemecek, MD appears in the CMS NPPES registry as a Contractor provider holding MD credentials at 1415 CALIFORNIA ST, Houston, TX, 77006, with a listed phone of (832) 548-5000. NPI 1629150487 was issued on 10/20/2006.
Medicare Part D records for calendar year 2023 show 5,041 prescription claims written by this provider, covering 227 Medicare beneficiaries and totaling roughly $7.5 million in drug spend, split 46% brand-name and 54% generic by claim count, with an opioid prescribing rate of 0.3%.
Contractor is a mid-sized specialty nationwide, with 8,697 enrolled providers across 54 states and an average of 927 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 | 1629150487 |
|---|---|
| Specialty | Contractor |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 10/20/2006 |
Hospital and facility affiliations
Facilities where John Nemecek, 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.
Legacy Community Health Services, Inc
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 John Nemecek, MD. To verify John Nemecek, 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 · Above average
John Nemecek, MD - brand share 46.0%
Contractor average
46% brand-name claims vs 54% generic, on 5,041 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.
5,041
Total Claims
$7.5M
Total Drug Cost
227
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 7,002
- Total Day Supply
- 207,937
- Brand vs Generic
- 46% brand / 54% generic
- Brand Drug Cost
- $7.3M
- Generic Drug Cost
- $152K
- Opioid Claims
- 14 (0.3% rate)
- Antibiotic Claims
- 74
Patient Demographics
- Average Patient Age
- 62.9 years
- Avg HCC Risk Score
- 1.55
- Gender Split
- 19% female / 81% male
- Age Distribution
- <65: 103, 65-74: 106, 75-84: 18, 85+: 0
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What John Nemecek, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Biktarvy
Biktarvy
776 claims
- Atorvastatin Calcium
Atorvastatin Calcium
380 claims
- Tivicay 252
Tivicay
252 claims
- Descovy 209
Descovy
209 claims
- Lisinopril 161
Lisinopril
161 claims
- Genvoya 147
Genvoya
147 claims
- Amlodipine Besylate 129
Amlodipine Besylate
129 claims
- Prezcobix 119
Prezcobix
119 claims
| Drug | Claims |
|---|---|
| Biktarvy Bictegrav/Emtricit/Tenofov Ala | 776 |
| Atorvastatin Calcium | 380 |
| Tivicay Dolutegravir Sodium | 252 |
| Descovy Emtricitabine/Tenofov Alafenam | 209 |
| Lisinopril | 161 |
| Genvoya Elviteg/Cob/Emtri/Tenof Alafen | 147 |
| Amlodipine Besylate | 129 |
| Prezcobix Darunavir/Cobicistat | 119 |
| Symtuza Darunavir/Cob/Emtri/Tenof Alaf | 107 |
| Juluca Dolutegravir/Rilpivirine | 105 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Contractor Overview
How John Nemecek, MD fits within the Contractor landscape nationally.
8,697
Contractor Providers in US
54
States with Contractor
927
Avg Claims per Provider
John Nemecek, MD's 5,041 claims are above the specialty average of 927.
Nearby Contractor Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Nemecek.
Olayinka Abayomi Salako
Richmond, TX
Esther Abbey
Dallas, TX
Dr. Lorna Abel
CNA
Amarillo, TX
Nzenwata Abengowe
Dallas, TX
Mariah Abercrombie
Irving, TX
Compare Contractor 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 Contractor 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.
Healthcare Guides
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Understanding Medicare Claims Data
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Frequently Asked Questions
What is John Nemecek, MD's specialty? ▼
John Nemecek, MD specializes in Contractor and practices in Houston, Texas. Credentials: MD.
How much does John Nemecek, MD prescribe under Medicare Part D? ▼
In 2023, John Nemecek, MD wrote 5,041 Medicare Part D claims totaling $7.5M in drug costs for 227 beneficiaries.
Where is John Nemecek, MD located? ▼
John Nemecek, MD is located at 1415 CALIFORNIA ST, Houston, TX, 77006. Phone: (832) 548-5000.
What is John Nemecek, MD's NPI number? ▼
John Nemecek, MD's National Provider Identifier (NPI) is 1629150487, issued on 10/20/2006.
Does John Nemecek, MD prescribe more brand-name or generic drugs? ▼
John Nemecek, MD's prescribing is 46% brand-name and 54% generic drugs by claim count, with $7.3M in brand drug costs.
Does John Nemecek, MD prescribe opioids? ▼
Yes, John Nemecek, MD had 14 opioid claims in 2023 with an opioid prescribing rate of 0.3%.
How many Contractor providers are there in the US? ▼
There are 8,697 Contractor providers across 54 states in the US. The average Contractor provider writes 927 Medicare Part D claims per year.
What drugs does John Nemecek, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, John Nemecek, MD's most frequently prescribed drugs include Biktarvy, Atorvastatin Calcium, Tivicay. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Nemecek, MD accept Medicare? ▼
John Nemecek, MD appears in CMS Medicare data with 5,041 Part D claims and 227 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Nemecek, MD's credentials? ▼
John Nemecek, MD's NPI is 1629150487 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.