2026 NPPES data Internal Medicine Physician NPI 1649293689 MD
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JAMES CARROLL, MD

Internal Medicine Physician in KATY, 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 · 86 beneficiaries · Internal Medicine Physician avg: 3K
Industry payments
$2.0K
3 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

JAMES CARROLL, MD filed 1,751 Medicare Part D claims in 2023 as a Internal Medicine Physician in KATY, Texas.

2K
Part D claims, 2023
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.

JAMES CARROLL, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

1,751 Top 17% higher than 83% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). This entry sits in this band. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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)

JAMES CARROLL, 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 JAMES CARROLL, MD?

Quality data not reported

NPI registry status

Active

Issued 07/25/2006

NPI 1649293689

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

1,751 36% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Texas

How Internal Medicine Physician compares to other specialties among Texas providers

Texas providers

Internal Medicine Physician share within Texas

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Internal Medicine 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).

JAMES CARROLL, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 1331 W GRAND PKWY N STE 310, KATY, TX, 77493, with a listed phone of (281) 599-3222. NPI 1649293689 was issued on 07/25/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CARROLL 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 1,751 prescription claims written by this provider, covering 86 Medicare beneficiaries and totaling roughly $2.1 million in drug spend, with an opioid prescribing rate of 2.6%. 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.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 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

1331 W GRAND PKWY N STE 310
KATY, TX 77493

Provider Details

NPI 1649293689
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 07/25/2006

Hospital and facility affiliations

Facilities where JAMES CARROLL, 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.

AIDS HEALTHCARE FOUNDATION TEXAS, INC.
KATY, 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 JAMES CARROLL, MD. Source: openpaymentsdata.cms.gov.

Total received

$2.0K

Largest payer

ViiV Healthcare Company

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 JAMES CARROLL, MD. To verify JAMES CARROLL, 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.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

1,751
Total Claims
$2.1M
Total Drug Cost
86
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,797
Total Day Supply
80,516
Generic Drug Cost
$42K
Opioid Claims
45 (2.6% rate)
Antibiotic Claims
64

Patient Demographics

Average Patient Age
57.7 years
Avg HCC Risk Score
1.59
Gender Split
19% female / 81% male
Age Distribution
<65: 54, 65-74: 29, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What JAMES CARROLL, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Biktarvy
Bictegrav/Emtricit/Tenofov Ala
221
Atorvastatin Calcium
59
Triumeq
Abacavir/Dolutegravir/Lamivudi
59
Amlodipine Besylate
53
Descovy
Emtricitabine/Tenofov Alafenam
47
Tivicay
Dolutegravir Sodium
44
Dovato
Dolutegravir Sodium/Lamivudine
36
Symtuza
Darunavir/Cob/Emtri/Tenof Alaf
34
Lisinopril
33
Pregabalin
32

* 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 JAMES CARROLL, MD fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

JAMES CARROLL, MD's 1,751 claims are below the specialty average of 2,716.

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 CARROLL.

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JAMES CARROLL, MD's specialty?
JAMES CARROLL, MD specializes in Internal Medicine Physician and practices in KATY, Texas. Credentials: MD.
How much does JAMES CARROLL, MD prescribe under Medicare Part D?
In 2023, JAMES CARROLL, MD wrote 1,751 Medicare Part D claims totaling $2.1M in drug costs for 86 beneficiaries.
Where is JAMES CARROLL, MD located?
JAMES CARROLL, MD is located at 1331 W GRAND PKWY N STE 310, KATY, TX, 77493. Phone: (281) 599-3222.
What is JAMES CARROLL, MD's NPI number?
JAMES CARROLL, MD's National Provider Identifier (NPI) is 1649293689, issued on 07/25/2006.
Does JAMES CARROLL, MD prescribe opioids?
Yes, JAMES CARROLL, MD had 45 opioid claims in 2023 with an opioid prescribing rate of 2.6%.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 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 JAMES CARROLL, MD prescribe most often?
Based on 2023 Medicare Part D data, JAMES CARROLL, MD's most frequently prescribed drugs include Biktarvy, Atorvastatin Calcium, Triumeq. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JAMES CARROLL, MD accept Medicare?
JAMES CARROLL, MD appears in CMS Medicare data with 1,751 Part D claims and 86 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JAMES CARROLL, MD's credentials?
JAMES CARROLL, MD's NPI is 1649293689 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

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