2026 NPPES data Endodontics NPI 1902101827 D.D.S.
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GARY DENNIS, D.D.S.

Endodontics in HOUSTON, Texas. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
173
Medicare Part D claims · 118 beneficiaries · Endodontics avg: 116
What the federal data reveals: GARY DENNIS, D.D.S. is a Endodontics ([object Object]) practicing in HOUSTON, Texas with a Medicare Part D prescribing footprint of 173 claims across 118 beneficiaries .

What stands out: GARY DENNIS, D.D.S. filed 173 Medicare Part D claims in 2023 across HOUSTON, Texas. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

GARY DENNIS, D.D.S. at a glance

Quality data not reported

NPI registry status

Active

Issued 01/24/2011

NPI 1902101827

Primary specialty

Endodontics

Mid-sized

5,856 US NPIs in this specialty

Medicare Part D claims

173 49% vs specialty avg

2023 prescription claims

Specialty avg: 116

Specialty distribution in Texas

How Endodontics compares to other specialties among Texas providers

Texas providers

Endodontics share within Texas

1. Endodontics42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Endodontics share within Texas

Specialty board-certification context

Estimated specialty board-certified rate — Endodontics (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Endodontics ABMS/AOA estimate

Est. board-certified rate (Endodontics) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Endodontics) — ABMS / AOA estimate

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).

GARY DENNIS, D.D.S. is a Endodontics provider practicing in HOUSTON, Texas, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.D.S.. NPI: 1902101827. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

GARY DENNIS, D.D.S. appears in the CMS NPPES registry as a Endodontics provider holding D.D.S. credentials at 8955 HIGHWAY 6 N, HOUSTON, TX, 77095, with a listed phone of (202) 465-1128. NPI 1902101827 was issued on 01/24/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DENNIS most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 173 prescription claims written by this provider, covering 118 Medicare beneficiaries and totaling roughly $653 in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Endodontics is a mid-sized specialty nationwide, with 5,856 enrolled providers across 53 states and an average of 116 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

8955 HIGHWAY 6 N
HOUSTON, TX 77095

Provider Details

NPI 1902101827
Specialty Endodontics
Credentials D.D.S.
Gender Male
NPI Issued 01/24/2011

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 GARY DENNIS, D.D.S.. To verify GARY DENNIS, D.D.S.'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.

173
Total Claims
$653
Total Drug Cost
118
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
173
Total Day Supply
1,123
Brand Drug Cost
$0
Generic Drug Cost
$653
Antibiotic Claims
74

Patient Demographics

Average Patient Age
68.7 years
Avg HCC Risk Score
0.92
Gender Split
55% female / 45% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Ibuprofen
98
Penicillin V Potassium
54

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Endodontics Overview

How GARY DENNIS, D.D.S. fits within the Endodontics landscape nationally.

5,856
Endodontics Providers in US
53
States with Endodontics
116
Avg Claims per Provider

GARY DENNIS, D.D.S.'s 173 claims are above the specialty average of 116.

Nearby Endodontics Providers in Texas

Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as DENNIS.

Compare Endodontics nationally: see state-by-state distribution →

Frequently Asked Questions

What is GARY DENNIS, D.D.S.'s specialty?
GARY DENNIS, D.D.S. specializes in Endodontics and practices in HOUSTON, Texas. Credentials: D.D.S..
How much does GARY DENNIS, D.D.S. prescribe under Medicare Part D?
In 2023, GARY DENNIS, D.D.S. wrote 173 Medicare Part D claims totaling $653 in drug costs for 118 beneficiaries.
Where is GARY DENNIS, D.D.S. located?
GARY DENNIS, D.D.S. is located at 8955 HIGHWAY 6 N, HOUSTON, TX, 77095. Phone: (202) 465-1128.
What is GARY DENNIS, D.D.S.'s NPI number?
GARY DENNIS, D.D.S.'s National Provider Identifier (NPI) is 1902101827, issued on 01/24/2011.
How many Endodontics providers are there in the US?
There are 5,856 Endodontics providers across 53 states in the US. The average Endodontics provider writes 116 Medicare Part D claims per year.
What drugs does GARY DENNIS, D.D.S. prescribe most often?
Based on 2023 Medicare Part D data, GARY DENNIS, D.D.S.'s most frequently prescribed drugs include Ibuprofen, Penicillin V Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GARY DENNIS, D.D.S. accept Medicare?
GARY DENNIS, D.D.S. appears in CMS Medicare data with 173 Part D claims and 118 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GARY DENNIS, D.D.S.'s credentials?
GARY DENNIS, D.D.S.'s NPI is 1902101827 with credentials D.D.S.. 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

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