2026 NPPES data Internal Medicine Physician NPI 1912957879 MD
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Johnson Agu, MD

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 172,858 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
2K
Medicare Part D claims · 283 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
88%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Johnson Agu, MD filed 1,890 Medicare Part D claims in 2023 as a Internal Medicine Physician in Houston, Texas, prescribing 88% generic.

2K
Part D claims, 2023
88%
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.

Johnson Agu, MD's Medicare Part D volume vs every U.S. prescriber

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

1,890 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%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). This entry sits in this band. 2K+: 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-eligible specialty (heuristic, not verified)

Johnson Agu, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Johnson Agu, MD?

Quality data not reported

NPI registry status

Active

Issued 05/11/2006

NPI 1912957879

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

1,890 30% 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

Largest specialties in Texas (% of in-state providers)

Behavior Technician - 5.6%Behavior Technician5.6%Student in an Organized Health Care Education/Training Program - 5.1%Student in an Organized Health Care Education/Training Program5.1%Family Nurse Practitioner - 4.5%Family Nurse Practitioner4.5%Professional Counselor - 4.4%Professional Counselor4.4%Pharmacist - 4.4%Pharmacist4.4%Speech-Language Pathologist - 3.9%Speech-Language Pathologist3.9%Internal Medicine Physician - 2.6%Internal Medicine Physician2.6%
Largest specialties in Texas (% of in-state 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 Internal Medicine Physician. Verify directly:

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).

Johnson Agu, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 7737 BEECHNUT ST, Houston, TX, 77074, with a listed phone of (713) 773-2255. NPI 1912957879 was issued on 05/11/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Agu 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 1,890 prescription claims written by this provider, covering 283 Medicare beneficiaries and totaling roughly $203K in drug spend, split 11% brand-name and 88% generic by claim count, 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

7737 BEECHNUT ST
Houston, TX 77074

Provider Details

NPI 1912957879
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 05/11/2006

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 Johnson Agu, MD. To verify Johnson Agu, 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 · Typical

Johnson Agu, MD - brand share 11.0%
Internal Medicine Physician average

11% brand-name claims vs 88% generic, on 1,890 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.

1,890
Total Claims
$203K
Total Drug Cost
283
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,229
Total Day Supply
121,986
Brand vs Generic
11% brand / 88% generic
Brand Drug Cost
$166K
Generic Drug Cost
$36K
Opioid Claims
50 (2.6% rate)
Antibiotic Claims
85

Patient Demographics

Average Patient Age
72.8 years
Avg HCC Risk Score
2.43
Gender Split
52% female / 48% male
Age Distribution
<65: 30, 65-74: 127, 75-84: 95, 85+: 31

Top Prescribed Drugs (Medicare Part D)

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

What Johnson Agu, 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
Amlodipine Besylate
107
Atorvastatin Calcium
95
Rosuvastatin Calcium
81
Metformin Hcl
78
Gabapentin
62
Omeprazole
57
Potassium Chloride
44
Olmesartan-Hydrochlorothiazide
Olmesartan/Hydrochlorothiazide
40
Clopidogrel
Clopidogrel Bisulfate
39
Furosemide
39

* 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 Johnson Agu, 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

Johnson Agu, MD's 1,890 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 Agu.

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 Johnson Agu, MD's specialty?
Johnson Agu, MD specializes in Internal Medicine Physician and practices in Houston, Texas. Credentials: MD.
How much does Johnson Agu, MD prescribe under Medicare Part D?
In 2023, Johnson Agu, MD wrote 1,890 Medicare Part D claims totaling $203K in drug costs for 283 beneficiaries.
Where is Johnson Agu, MD located?
Johnson Agu, MD is located at 7737 BEECHNUT ST, Houston, TX, 77074. Phone: (713) 773-2255.
What is Johnson Agu, MD's NPI number?
Johnson Agu, MD's National Provider Identifier (NPI) is 1912957879, issued on 05/11/2006.
Does Johnson Agu, MD prescribe more brand-name or generic drugs?
Johnson Agu, MD's prescribing is 11% brand-name and 88% generic drugs by claim count, with $166K in brand drug costs.
Does Johnson Agu, MD prescribe opioids?
Yes, Johnson Agu, MD had 50 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 Johnson Agu, MD prescribe most often?
Based on 2023 Medicare Part D data, Johnson Agu, MD's most frequently prescribed drugs include Amlodipine Besylate, Atorvastatin Calcium, Rosuvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Johnson Agu, MD accept Medicare?
Johnson Agu, MD appears in CMS Medicare data with 1,890 Part D claims and 283 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Johnson Agu, MD's credentials?
Johnson Agu, MD's NPI is 1912957879 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

Compiled from official public sources by the PlainDoctor editorial team.