NPI registry status
Active
2026 NPPES data Critical Care Medicine (Internal Medicine) Physician NPI 1104945773 M.D.
Verify on CMS → Humayun Anjum, M.D.
Critical Care Medicine (Internal Medicine) Physician in Dallas, 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 6,916 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
288
Medicare Part D claims · 60 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
53%
generic claims · 47% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$538.67
30 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Humayun Anjum, M.D. filed 288 Medicare Part D claims in 2024 as a Critical Care Medicine (Internal Medicine) Physician in Dallas, Texas, prescribing 53% generic.
- 288
- Part D claims, 2024
- 53%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥48th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Humayun Anjum, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1104945773), first enumerated 03/28/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 288 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$538.67 in reported industry payments (30 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
Texas statewide board action statistics are published annually — these figures describe aggregate state activity, not Humayun Anjum, M.D.'s individual license status. Verify directly with the state medical board.
Source: TMB annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1104945773 · Critical Care Medicine (Internal Medicine) Physician
NPI-10 · ENUM-MID · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1104945773
- ENUM-MID 2007
- TAX-MID 7K Critical Care
- RX-LIGHT 288
- BOOK-THIN 431 in Texas
- PHOTO-ENUM Gordon Rubenfeld · 2007
Humayun Anjum, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
288 ≥ 48th percentile 48% of 1,416,883 prescribers are in lower value bands
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 · 2024
✓
Board certification likely (heuristic, not verified)
Humayun Anjum, 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).
What does the federal data show about Humayun Anjum, M.D.?
Quality data not reportedPrimary specialty
Critical Care Medicine (Internal Medicine) Physician
Medicare Part D claims
288 74% vs specialty avg
Specialty distribution in Texas
How Critical Care Medicine (Internal Medicine) Physician compares to other specialties among Texas 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:
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).
Practice Address
Provider Details
| NPI | 1104945773 |
|---|---|
| Specialty | Critical Care Medicine (Internal Medicine) Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 03/28/2007 |
Hospital and facility affiliations
Facilities where Humayun Anjum, 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.
Dallas Pulmonary And Critical Care PA
Dallas, 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 Humayun Anjum, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$539
Largest payer
GlaxoSmithKline, 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 Humayun Anjum, M.D.. To verify Humayun Anjum, 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 · Above average
Humayun Anjum, M.D. - brand share 47.0%
Critical Care Medicine (Internal Medicine) Physician average
47% brand-name claims vs 53% generic, on 288 2024 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 2024.
288
Total Claims
$89K
Total Drug Cost
60
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 392.9
- Total Day Supply
- 10,930
- Brand vs Generic
- 47% brand / 53% generic
- Brand Drug Cost
- $83K
- Generic Drug Cost
- $6K
- Antibiotic Claims
- 29
Patient Demographics
- Average Patient Age
- 75.4 years
- Avg HCC Risk Score
- 1.78
- Gender Split
- 68% female / 32% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Humayun Anjum, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Prednisone
Prednisone
49 claims
- Trelegy Ellipta
Trelegy Ellipta
39 claims
- Breztri Aerosphere
Breztri Aerosphere
32 claims
- Rifampin
Rifampin
24 claims
- Albuterol Sulfate … 19
Albuterol Sulfate Hfa
19 claims
- Ethambutol Hcl 15
Ethambutol Hcl
15 claims
- Montelukast Sodium 15
Montelukast Sodium
15 claims
- Fluticasone-Salmet… 13
Fluticasone-Salmeterol
13 claims
| Drug | Claims |
|---|---|
| Prednisone | 49 |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 39 |
| Breztri Aerosphere Budesonide/Glycopyr/Formoterol | 32 |
| Rifampin | 24 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 19 |
| Ethambutol Hcl | 15 |
| Montelukast Sodium | 15 |
| Fluticasone-Salmeterol Fluticasone Propion/Salmeterol | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Critical Care Medicine (Internal Medicine) Physician in TX →
All providers in Texas →
Compare specialties →
Critical Care Medicine (Internal Medicine) Physician Overview
How Humayun Anjum, M.D. fits within the Critical Care Medicine (Internal Medicine) Physician landscape nationally.
6,916
Critical Care Medicine (Internal Medicine) Physician Providers in US
53
States with Critical Care Medicine (Internal Medicine) Physician
1,103
Avg Claims per Provider
Humayun Anjum, M.D.'s 288 claims are below the specialty average of 1,103.
Nationwide Critical Care Medicine (Internal Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Anjum, both outside Texas so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
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 Anjum.
One of 431 Critical Care Medicine (Internal Medicine) Physician providers enrolled in Texas, 5 are shown here.
Frequently Asked Questions
What is Humayun Anjum, M.D.'s specialty? ▼
Humayun Anjum, M.D. specializes in Critical Care Medicine (Internal Medicine) Physician and practices in Dallas, Texas. Credentials: M.D..
How much does Humayun Anjum, M.D. prescribe under Medicare Part D? ▼
In 2024, Humayun Anjum, M.D. wrote 288 Medicare Part D claims totaling $89K in drug costs for 60 beneficiaries.
Where is Humayun Anjum, M.D. located? ▼
Humayun Anjum, M.D. is located at 221 W COLORADO BLVD STE 525, Dallas, TX, 75208. Phone: (214) 960-5681.
What is Humayun Anjum, M.D.'s NPI number? ▼
Humayun Anjum, M.D.'s National Provider Identifier (NPI) is 1104945773, issued on 03/28/2007.
Does Humayun Anjum, M.D. prescribe more brand-name or generic drugs? ▼
Humayun Anjum, M.D.'s prescribing is 47% brand-name and 53% generic drugs by claim count, with $83K in brand drug costs.
How many Critical Care Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 6,916 Critical Care Medicine (Internal Medicine) Physician providers across 53 states in the US. The average Critical Care Medicine (Internal Medicine) Physician provider writes 1,103 Medicare Part D claims per year.
What drugs does Humayun Anjum, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Humayun Anjum, M.D.'s most frequently prescribed drugs include Prednisone, Trelegy Ellipta, Breztri Aerosphere. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Humayun Anjum, M.D. accept Medicare? ▼
Humayun Anjum, M.D. appears in CMS Medicare data with 288 Part D claims and 60 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Humayun Anjum, M.D.'s credentials? ▼
Humayun Anjum, M.D.'s NPI is 1104945773 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.