2026 NPPES data Critical Care Medicine (Internal Medicine) Physician NPI 1861491748 M.D., F.C.C.P.
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Ahmad Hajj, M.D., F.C.C.P.

Critical Care Medicine (Internal Medicine) Physician in El Paso, 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 6,631 in Critical Care Medicine (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
660
Medicare Part D claims · 116 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
63%
generic claims · 37% 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

Ahmad Hajj, M.D., F.C.C.P. filed 660 Medicare Part D claims in 2023 as a Critical Care Medicine (Internal Medicine) Physician in El Paso, Texas, prescribing 63% generic.

660
Part D claims, 2023
63%
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.

Ahmad Hajj, M.D., F.C.C.P.'s Medicare Part D volume vs every U.S. prescriber

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

660 Top 31% higher than 69% 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%). This entry sits in this band. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 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)

Ahmad Hajj, M.D., F.C.C.P. 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 Ahmad Hajj, M.D., F.C.C.P.?

Quality data not reported

NPI registry status

Active

Issued 07/21/2005

NPI 1861491748

Primary specialty

Critical Care Medicine (Internal Medicine) Physician

Mid-sized

6,631 US NPIs in this specialty

Medicare Part D claims

660 38% vs specialty avg

2023 prescription claims

Specialty avg: 1,069

Specialty distribution in Texas

How Critical Care Medicine (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%Critical Care Medicine (Internal Medicine) Physician - 0.1%Critical Care Medicine (Internal Medicine) Physician0.1%
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 Critical Care Medicine (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).

Ahmad Hajj, M.D., F.C.C.P. appears in the CMS NPPES registry as a Critical Care Medicine (Internal Medicine) Physician provider holding M.D., F.C.C.P. credentials at 1700 N OREGON ST, El Paso, TX, 79902, with a listed phone of (915) 351-2300. NPI 1861491748 was issued on 07/21/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Hajj 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 660 prescription claims written by this provider, covering 116 Medicare beneficiaries and totaling roughly $318K in drug spend, split 37% brand-name and 63% 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.

Critical Care Medicine (Internal Medicine) Physician is a mid-sized specialty nationwide, with 6,631 enrolled providers across 53 states and an average of 1,069 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

1700 N OREGON ST
El Paso, TX 79902

Provider Details

NPI 1861491748
Specialty Critical Care Medicine (Internal Medicine) Physician
Credentials M.D., F.C.C.P.
Gender Male
NPI Issued 07/21/2005

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 Ahmad Hajj, M.D., F.C.C.P.. To verify Ahmad Hajj, M.D., F.C.C.P.'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 · Above average

Ahmad Hajj, M.D., F.C.C.P. - brand share 37.0%
Critical Care Medicine (Internal Medicine) Physician average

37% brand-name claims vs 63% generic, on 660 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.

660
Total Claims
$318K
Total Drug Cost
116
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,243
Total Day Supply
34,441
Brand vs Generic
37% brand / 63% generic
Brand Drug Cost
$238K
Generic Drug Cost
$80K
Antibiotic Claims
53

Patient Demographics

Average Patient Age
73.6 years
Avg HCC Risk Score
3.85
Gender Split
59% female / 41% male
Age Distribution
<65: 18, 65-74: 41, 75-84: 34, 85+: 23

Top Prescribed Drugs (Medicare Part D)

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

What Ahmad Hajj, M.D., F.C.C.P. 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
Montelukast Sodium
121
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
114
Albuterol Sulfate Hfa
Albuterol Sulfate
78
Methylprednisolone
36
Azithromycin
24
Theophylline Er
Theophylline Anhydrous
21
Breo Ellipta
Fluticasone/Vilanterol
20
Furosemide
19
Flovent Diskus
Fluticasone Propionate
13
Metoprolol Succinate
13

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

Critical Care Medicine (Internal Medicine) Physician Overview

How Ahmad Hajj, M.D., F.C.C.P. fits within the Critical Care Medicine (Internal Medicine) Physician landscape nationally.

6,631
Critical Care Medicine (Internal Medicine) Physician Providers in US
53
States with Critical Care Medicine (Internal Medicine) Physician
1,069
Avg Claims per Provider

Ahmad Hajj, M.D., F.C.C.P.'s 660 claims are below the specialty average of 1,069.

Nearby Critical Care Medicine (Internal Medicine) Physician Providers in Texas

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

Compare Critical Care Medicine (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 Critical Care Medicine (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 Ahmad Hajj, M.D., F.C.C.P.'s specialty?
Ahmad Hajj, M.D., F.C.C.P. specializes in Critical Care Medicine (Internal Medicine) Physician and practices in El Paso, Texas. Credentials: M.D., F.C.C.P..
How much does Ahmad Hajj, M.D., F.C.C.P. prescribe under Medicare Part D?
In 2023, Ahmad Hajj, M.D., F.C.C.P. wrote 660 Medicare Part D claims totaling $318K in drug costs for 116 beneficiaries.
Where is Ahmad Hajj, M.D., F.C.C.P. located?
Ahmad Hajj, M.D., F.C.C.P. is located at 1700 N OREGON ST, El Paso, TX, 79902. Phone: (915) 351-2300.
What is Ahmad Hajj, M.D., F.C.C.P.'s NPI number?
Ahmad Hajj, M.D., F.C.C.P.'s National Provider Identifier (NPI) is 1861491748, issued on 07/21/2005.
Does Ahmad Hajj, M.D., F.C.C.P. prescribe more brand-name or generic drugs?
Ahmad Hajj, M.D., F.C.C.P.'s prescribing is 37% brand-name and 63% generic drugs by claim count, with $238K in brand drug costs.
How many Critical Care Medicine (Internal Medicine) Physician providers are there in the US?
There are 6,631 Critical Care Medicine (Internal Medicine) Physician providers across 53 states in the US. The average Critical Care Medicine (Internal Medicine) Physician provider writes 1,069 Medicare Part D claims per year.
What drugs does Ahmad Hajj, M.D., F.C.C.P. prescribe most often?
Based on 2023 Medicare Part D data, Ahmad Hajj, M.D., F.C.C.P.'s most frequently prescribed drugs include Montelukast Sodium, Trelegy Ellipta, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ahmad Hajj, M.D., F.C.C.P. accept Medicare?
Ahmad Hajj, M.D., F.C.C.P. appears in CMS Medicare data with 660 Part D claims and 116 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ahmad Hajj, M.D., F.C.C.P.'s credentials?
Ahmad Hajj, M.D., F.C.C.P.'s NPI is 1861491748 with credentials M.D., F.C.C.P.. 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.