2026 NPPES data Infectious Disease Physician NPI 1124514153 MD
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Mauricio Kahn Chau, MD

Infectious Disease Physician in Birmingham, Alabama. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 8,292 in Infectious Disease 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
281
Medicare Part D claims · 13 beneficiaries · Infectious Disease Physician avg: 816
Generic prescribing
65%
generic claims · 35% 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

Mauricio Kahn Chau, MD filed 281 Medicare Part D claims in 2023 as a Infectious Disease Physician in Birmingham, Alabama, prescribing 65% generic.

281
Part D claims, 2023
65%
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.

Mauricio Kahn Chau, MD's Medicare Part D volume vs every U.S. prescriber

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

281 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 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 certification likely (heuristic, not verified)

Mauricio Kahn Chau, 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 Mauricio Kahn Chau, MD?

Quality data not reported

NPI registry status

Active

Issued 07/02/2018

NPI 1124514153

Primary specialty

Infectious Disease Physician

Mid-sized

8,292 US NPIs in this specialty

Medicare Part D claims

281 66% vs specialty avg

2023 prescription claims

Specialty avg: 816

Specialty distribution in Alabama

How Infectious Disease Physician compares to other specialties among Alabama providers

Alabama providers
Student in an Organized Health Care Education/Training Program - 8.1%Student in an Organized Health Care Education/Training Program8.1%Pharmacist - 6.7%Pharmacist6.7%Family Nurse Practitioner - 5.9%Family Nurse Practitioner5.9%Behavior Technician - 4.4%Behavior Technician4.4%Physical Therapist - 4.2%Physical Therapist4.2%Mental Health Counselor - 3.3%Mental Health Counselor3.3%Infectious Disease Physician - 0.1%Infectious Disease Physician0.1%
Largest specialties in Alabama (% 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 Infectious Disease 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).

Mauricio Kahn Chau, MD appears in the CMS NPPES registry as a Infectious Disease Physician provider holding MD credentials at 3220 5TH AVE S, Birmingham, AL, 35222, with a listed phone of (205) 934-1917. NPI 1124514153 was issued on 07/02/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Kahn Chau 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 281 prescription claims written by this provider, covering 13 Medicare beneficiaries and totaling roughly $287K in drug spend, split 35% brand-name and 65% 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.

Infectious Disease Physician is a mid-sized specialty nationwide, with 8,292 enrolled providers across 54 states and an average of 816 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

3220 5TH AVE S
Birmingham, AL 35222

Provider Details

NPI 1124514153
Specialty Infectious Disease Physician
Credentials MD
Gender Male
NPI Issued 07/02/2018

Hospital and facility affiliations

Facilities where Mauricio Kahn Chau, 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.

University OF Alabama Health Services Foundation, PC
Birmingham, AL

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Above average

Mauricio Kahn Chau, MD - brand share 35.0%
Infectious Disease Physician average

35% brand-name claims vs 65% generic, on 281 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.

281
Total Claims
$287K
Total Drug Cost
13
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
397
Total Day Supply
11,829
Brand vs Generic
35% brand / 65% generic
Brand Drug Cost
$269K
Generic Drug Cost
$18K

Patient Demographics

Average Patient Age
59.6 years
Avg HCC Risk Score
2.37

Top Prescribed Drugs (Medicare Part D)

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

What Mauricio Kahn Chau, 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
Triumeq
Abacavir/Dolutegravir/Lamivudi
32
Descovy
Emtricitabine/Tenofov Alafenam
25
Amlodipine Besylate
24
Tivicay
Dolutegravir Sodium
21
Pantoprazole Sodium
20
Lisinopril
12
Ritonavir
11

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

Infectious Disease Physician Overview

How Mauricio Kahn Chau, MD fits within the Infectious Disease Physician landscape nationally.

8,292
Infectious Disease Physician Providers in US
54
States with Infectious Disease Physician
816
Avg Claims per Provider

Mauricio Kahn Chau, MD's 281 claims are below the specialty average of 816.

Nearby Infectious Disease Physician Providers in Alabama

Other clinicians with the same primary specialty enrolled in Alabama, drawn from the same CMS NPPES roster as Kahn Chau.

Compare Infectious Disease 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 Alabama medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Infectious Disease 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 Mauricio Kahn Chau, MD's specialty?
Mauricio Kahn Chau, MD specializes in Infectious Disease Physician and practices in Birmingham, Alabama. Credentials: MD.
How much does Mauricio Kahn Chau, MD prescribe under Medicare Part D?
In 2023, Mauricio Kahn Chau, MD wrote 281 Medicare Part D claims totaling $287K in drug costs for 13 beneficiaries.
Where is Mauricio Kahn Chau, MD located?
Mauricio Kahn Chau, MD is located at 3220 5TH AVE S, Birmingham, AL, 35222. Phone: (205) 934-1917.
What is Mauricio Kahn Chau, MD's NPI number?
Mauricio Kahn Chau, MD's National Provider Identifier (NPI) is 1124514153, issued on 07/02/2018.
Does Mauricio Kahn Chau, MD prescribe more brand-name or generic drugs?
Mauricio Kahn Chau, MD's prescribing is 35% brand-name and 65% generic drugs by claim count, with $269K in brand drug costs.
How many Infectious Disease Physician providers are there in the US?
There are 8,292 Infectious Disease Physician providers across 54 states in the US. The average Infectious Disease Physician provider writes 816 Medicare Part D claims per year.
What drugs does Mauricio Kahn Chau, MD prescribe most often?
Based on 2023 Medicare Part D data, Mauricio Kahn Chau, MD's most frequently prescribed drugs include Triumeq, Descovy, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mauricio Kahn Chau, MD accept Medicare?
Mauricio Kahn Chau, MD appears in CMS Medicare data with 281 Part D claims and 13 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mauricio Kahn Chau, MD's credentials?
Mauricio Kahn Chau, MD's NPI is 1124514153 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.