2026 NPPES data Internal Medicine Physician NPI 1982898631 M.D.
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Kelly O'Brien, M.D.

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
7K
Medicare Part D claims · 518 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
83%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
CMS neutral threshold · no category scores published
Industry payments
$1.1K
65 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

Kelly O'Brien, M.D. carries the neutral CMS MIPS final score of 75/100, assigned where no category was scored - and filed 6,912 Medicare Part D claims in 2023.

75/100
CMS neutral score · not measured
7K
Part D claims, 2023
83%
generic prescribing
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.

Kelly O'Brien, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

6,912 ≥ 96th percentile 96% of 1,370,886 prescribers are in lower value bands

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%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2K+: 213,991 prescribers (16%). This entry sits in this band. 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.

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)

Kelly O'Brien, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 3 hospital affiliations - 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 Kelly O'Brien, M.D.?

CMS neutral score, not measured

NPI registry status

Active

Issued 09/05/2007

NPI 1982898631

Primary specialty

Internal Medicine Physician

High-volume

172,737 US NPIs in this specialty

Medicare Part D claims

6,912 154% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

75/100

CMS neutral score, not measured

No category scores published; CMS assigned the performance threshold

Specialty distribution in Texas

How Internal Medicine Physician compares to other specialties among Texas providers

Texas providers
Behavior Technician5.6%Student in an Organized Heal…5.1%Family Nurse Practitioner4.5%Professional Counselor4.4%Pharmacist4.4%Speech-Language Pathologist3.9%Internal Medicine Physician2.6%
Largest specialties in Texas (% of in-state providers)

MIPS score not measured

CMS assigned a neutral 75/100 threshold

CMS did not publish any Quality, Cost, Promoting Interoperability, or Improvement Activities category score for this clinician. This administrative threshold is not comparable with the national average of clinicians whose MIPS score was measured.

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).

Kelly O'Brien, M.D. appears in the CMS NPPES registry as an Internal Medicine Physician provider holding M.D. credentials at 1701 SUNSET BLVD, Houston, TX, 77005, with a listed phone of (713) 526-5511. NPI 1982898631 was issued on 09/05/2007.

Medicare Part D records for calendar year 2023 show 6,912 prescription claims written by this provider, covering 518 Medicare beneficiaries and totaling roughly $582K in drug spend, split 15% brand-name and 83% generic by claim count, with an opioid prescribing rate of 2.5%. On the CMS Merit-based Incentive Payment System, this provider carries a Final Score of 75/100 for the 2023 performance year, but CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score: this is the neutral performance threshold CMS assigns where nothing was scored, so it is not comparable with clinicians whose score was measured.

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

1701 SUNSET BLVD
Houston, TX 77005

Provider Details

NPI 1982898631
Specialty Internal Medicine Physician
Credentials M.D.
Gender Female
NPI Issued 09/05/2007

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

75
Final Score
CMS neutral threshold · not measured

Reporting: Group practice

Hospital and facility affiliations

Facilities where Kelly O'Brien, 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.

According to CMS billing records, Kelly O'Brien, M.D. is affiliated with 3 Medicare-billing facilities.

Action Therapy Centers Limited
Houston, TX
Medical Clinic OF Houston, LLP
Houston, TX
Select Physical Therapy Texas Limited Partnership
Willis, 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 Kelly O'Brien, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$1.1K

Largest payer

Salix Pharmaceuticals, a division of Bausch Health US, LLC

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 Kelly O'Brien, M.D.. To verify Kelly O'Brien, 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

Kelly O'Brien, M.D. - brand share 15.0%
Internal Medicine Physician average

15% brand-name claims vs 83% generic, on 6,912 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.

6,912
Total Claims
$582K
Total Drug Cost
518
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
13,553
Total Day Supply
389,795
Brand vs Generic
15% brand / 83% generic
Brand Drug Cost
$450K
Generic Drug Cost
$129K
Opioid Claims
170 (2.5% rate)
Antibiotic Claims
299

Patient Demographics

Average Patient Age
75.3 years
Avg HCC Risk Score
0.88
Gender Split
84% female / 16% male

Top Prescribed Drugs (Medicare Part D)

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

What Kelly O'Brien, M.D. 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
Atorvastatin Calcium
395
Levothyroxine Sodium
316
Synthroid
Levothyroxine Sodium
246
Amlodipine Besylate
177
Hydrochlorothiazide
164
Losartan Potassium
143
Lisinopril
142
Gabapentin
128
Rosuvastatin Calcium
128
Spironolactone
128

* 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 Kelly O'Brien, M.D. 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

Kelly O'Brien, M.D.'s 6,912 claims are above 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 O'Brien.

One of 10,926 Internal Medicine Physician providers enrolled in Texas, 5 are shown here.

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.

Frequently Asked Questions

What is Kelly O'Brien, M.D.'s specialty?
Kelly O'Brien, M.D. specializes in Internal Medicine Physician and practices in Houston, Texas. Credentials: M.D..
How much does Kelly O'Brien, M.D. prescribe under Medicare Part D?
In 2023, Kelly O'Brien, M.D. wrote 6,912 Medicare Part D claims totaling $582K in drug costs for 518 beneficiaries.
What is Kelly O'Brien, M.D.'s Medicare quality score?
Kelly O'Brien, M.D. has a CMS MIPS Final Score of 75/100. CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score for this clinician, so the final score is the neutral performance threshold CMS assigns rather than a measured result. The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Kelly O'Brien, M.D. located?
Kelly O'Brien, M.D. is located at 1701 SUNSET BLVD, Houston, TX, 77005. Phone: (713) 526-5511.
What is Kelly O'Brien, M.D.'s NPI number?
Kelly O'Brien, M.D.'s National Provider Identifier (NPI) is 1982898631, issued on 09/05/2007.
Does Kelly O'Brien, M.D. prescribe more brand-name or generic drugs?
Kelly O'Brien, M.D.'s prescribing is 15% brand-name and 83% generic drugs by claim count, with $450K in brand drug costs.
Does Kelly O'Brien, M.D. prescribe opioids?
Yes, Kelly O'Brien, M.D. had 170 opioid claims in 2023 with an opioid prescribing rate of 2.5%.
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 Kelly O'Brien, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Kelly O'Brien, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Synthroid. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kelly O'Brien, M.D. accept Medicare?
Kelly O'Brien, M.D. appears in CMS Medicare data with 6,912 Part D claims and 518 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kelly O'Brien, M.D.'s credentials?
Kelly O'Brien, M.D.'s NPI is 1982898631 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

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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
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.