2026 NPPES data Urology Physician NPI 1033119516 M.D.
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NATHANIEL BARNES, M.D.

Urology Physician in WEBSTER, 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
2K
Medicare Part D claims · 324 beneficiaries · Urology Physician avg: 1K
Generic prescribing
80%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$95.7K
146 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: NATHANIEL BARNES, M.D. is a Urology Physician ([object Object]) practicing in WEBSTER, Texas with a Medicare Part D prescribing footprint of 2K claims across 324 beneficiaries — 20% brand-name prescribing . Industry payments of $95.7K across 146 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: NATHANIEL BARNES, M.D. filed 1,537 Medicare Part D claims in 2023 across WEBSTER, Texas. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

NATHANIEL BARNES, M.D. 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).

NATHANIEL BARNES, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 07/27/2005

NPI 1033119516

Primary specialty

Urology Physician

Mid-sized

13,350 US NPIs in this specialty

Medicare Part D claims

1,537 20% vs specialty avg

2023 prescription claims

Specialty avg: 1,280

Specialty distribution in Texas

How Urology Physician compares to other specialties among Texas providers

Texas providers

Urology Physician share within Texas

1. Urology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Urology Physician share within Texas

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Urology Physician) — 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).

NATHANIEL BARNES, M.D. is a Urology Physician provider practicing in WEBSTER, Texas, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1033119516. 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.

NATHANIEL BARNES, M.D. appears in the CMS NPPES registry as a Urology Physician provider holding M.D. credentials at 250 BLOSSOM ST, WEBSTER, TX, 77598, with a listed phone of (281) 332-0202. NPI 1033119516 was issued on 07/27/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BARNES 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 1,537 prescription claims written by this provider, covering 324 Medicare beneficiaries and totaling roughly $483K in drug spend, split 20% brand-name and 80% generic by claim count. 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.

Urology Physician is a mid-sized specialty nationwide, with 13,350 enrolled providers across 54 states and an average of 1,280 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

250 BLOSSOM ST
WEBSTER, TX 77598

Provider Details

NPI 1033119516
Specialty Urology Physician
Credentials M.D.
Gender Male
NPI Issued 07/27/2005

Hospital and facility affiliations

Facilities where NATHANIEL BARNES, M.D. 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.

MEMORIAL HERMANN MEDICAL GROUP
PEARLAND, 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 NATHANIEL BARNES, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$95.7K

Largest payer

Astellas Pharma US 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.

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 NATHANIEL BARNES, M.D.. To verify NATHANIEL BARNES, M.D.'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 · Typical

NATHANIEL BARNES, M.D. — brand share 20.0%
Specialty average (est.)

20% brand-name claims vs 80% generic, on 1,537 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.

1,537
Total Claims
$483K
Total Drug Cost
324
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,181
Total Day Supply
87,747
Brand vs Generic
20% brand / 80% generic
Brand Drug Cost
$428K
Generic Drug Cost
$55K
Antibiotic Claims
311

Patient Demographics

Average Patient Age
74.5 years
Avg HCC Risk Score
1.34
Gender Split
22% female / 78% male
Age Distribution
<65: 11, 65-74: 163, 75-84: 111, 85+: 39

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Tamsulosin Hcl
229
Myrbetriq
Mirabegron
212
Ciprofloxacin Hcl
148
Finasteride
142
Solifenacin Succinate
123
Dutasteride
111
Silodosin
102
Cefpodoxime Proxetil
58
Testosterone Cypionate
56
Gemtesa
Vibegron
38

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

Urology Physician Overview

How NATHANIEL BARNES, M.D. fits within the Urology Physician landscape nationally.

13,350
Urology Physician Providers in US
54
States with Urology Physician
1,280
Avg Claims per Provider

NATHANIEL BARNES, M.D.'s 1,537 claims are above the specialty average of 1,280.

Nearby Urology Physician Providers in Texas

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

Compare Urology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is NATHANIEL BARNES, M.D.'s specialty?
NATHANIEL BARNES, M.D. specializes in Urology Physician and practices in WEBSTER, Texas. Credentials: M.D..
How much does NATHANIEL BARNES, M.D. prescribe under Medicare Part D?
In 2023, NATHANIEL BARNES, M.D. wrote 1,537 Medicare Part D claims totaling $483K in drug costs for 324 beneficiaries.
Where is NATHANIEL BARNES, M.D. located?
NATHANIEL BARNES, M.D. is located at 250 BLOSSOM ST, WEBSTER, TX, 77598. Phone: (281) 332-0202.
What is NATHANIEL BARNES, M.D.'s NPI number?
NATHANIEL BARNES, M.D.'s National Provider Identifier (NPI) is 1033119516, issued on 07/27/2005.
Does NATHANIEL BARNES, M.D. prescribe more brand-name or generic drugs?
NATHANIEL BARNES, M.D.'s prescribing is 20% brand-name and 80% generic drugs by claim count, with $428K in brand drug costs.
How many Urology Physician providers are there in the US?
There are 13,350 Urology Physician providers across 54 states in the US. The average Urology Physician provider writes 1,280 Medicare Part D claims per year.
What drugs does NATHANIEL BARNES, M.D. prescribe most often?
Based on 2023 Medicare Part D data, NATHANIEL BARNES, M.D.'s most frequently prescribed drugs include Tamsulosin Hcl, Myrbetriq, Ciprofloxacin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NATHANIEL BARNES, M.D. accept Medicare?
NATHANIEL BARNES, M.D. appears in CMS Medicare data with 1,537 Part D claims and 324 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NATHANIEL BARNES, M.D.'s credentials?
NATHANIEL BARNES, M.D.'s NPI is 1033119516 with credentials M.D.. 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