2026 NPPES data Hospitalist Physician NPI 1578536546 MD
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ZAHIRUL HAQUE, MD

Hospitalist Physician in SAINT LOUIS, Missouri. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
805
Medicare Part D claims · 143 beneficiaries · Hospitalist Physician avg: 888
Industry payments
$17.85
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ZAHIRUL HAQUE, MD filed 805 Medicare Part D claims in 2023 as a Hospitalist Physician in SAINT LOUIS, Missouri.

805
Part D claims, 2023
$17.85
industry payments (Sunshine Act)

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.

ZAHIRUL HAQUE, MD's Medicare Part D volume vs every U.S. prescriber

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

805 Top 27% higher than 73% 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%). This entry sits in this band. 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. 2,000–2,200: 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)

ZAHIRUL HAQUE, 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 ZAHIRUL HAQUE, MD?

Quality data not reported

NPI registry status

Active

Issued 02/09/2006

NPI 1578536546

Primary specialty

Hospitalist Physician

Mid-sized

16,825 US NPIs in this specialty

Medicare Part D claims

805 9% vs specialty avg

2023 prescription claims

Specialty avg: 888

Specialty distribution in Missouri

How Hospitalist Physician compares to other specialties among Missouri providers

Missouri providers

Hospitalist Physician share within Missouri

1. Hospitalist Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Hospitalist Physician share within Missouri

Specialty board-certification context

Estimated specialty board-certified rate — Hospitalist Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Hospitalist Physician ABMS/AOA estimate

Est. board-certified rate (Hospitalist Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Hospitalist Physician) — ABMS / AOA estimate

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).

ZAHIRUL HAQUE, MD appears in the CMS NPPES registry as a Hospitalist Physician provider holding MD credentials at 4 CLAYTON COURT DR, SAINT LOUIS, MO, 63131, with a listed phone of (314) 368-3422. NPI 1578536546 was issued on 02/09/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HAQUE 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 805 prescription claims written by this provider, covering 143 Medicare beneficiaries and totaling roughly $35K in drug spend, with an opioid prescribing rate of 5.2%. 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.

Hospitalist Physician is a mid-sized specialty nationwide, with 16,825 enrolled providers across 54 states and an average of 888 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

4 CLAYTON COURT DR
SAINT LOUIS, MO 63131

Provider Details

NPI 1578536546
Specialty Hospitalist Physician
Credentials MD
Gender Male
NPI Issued 02/09/2006

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 ZAHIRUL HAQUE, MD. Source: openpaymentsdata.cms.gov.

Total received

$18

Largest payer

ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)

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.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

805
Total Claims
$35K
Total Drug Cost
143
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
819
Total Day Supply
21,363
Generic Drug Cost
$9K
Opioid Claims
42 (5.2% rate)
Antibiotic Claims
13

Patient Demographics

Average Patient Age
73.0 years
Avg HCC Risk Score
2.96
Gender Split
51% female / 49% male
Age Distribution
<65: 28, 65-74: 47, 75-84: 41, 85+: 27

Top Prescribed Drugs (Medicare Part D)

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

What ZAHIRUL HAQUE, 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
Atorvastatin Calcium
44
Pantoprazole Sodium
31
Amlodipine Besylate
30
Gabapentin
24
Tamsulosin Hcl
24
Levothyroxine Sodium
23
Oxycodone Hcl
21
Metoprolol Tartrate
19
Carvedilol
18
Famotidine
17

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

Hospitalist Physician Overview

How ZAHIRUL HAQUE, MD fits within the Hospitalist Physician landscape nationally.

16,825
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider

ZAHIRUL HAQUE, MD's 805 claims are below the specialty average of 888.

Nearby Hospitalist Physician Providers in Missouri

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

Compare Hospitalist Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ZAHIRUL HAQUE, MD's specialty?
ZAHIRUL HAQUE, MD specializes in Hospitalist Physician and practices in SAINT LOUIS, Missouri. Credentials: MD.
How much does ZAHIRUL HAQUE, MD prescribe under Medicare Part D?
In 2023, ZAHIRUL HAQUE, MD wrote 805 Medicare Part D claims totaling $35K in drug costs for 143 beneficiaries.
Where is ZAHIRUL HAQUE, MD located?
ZAHIRUL HAQUE, MD is located at 4 CLAYTON COURT DR, SAINT LOUIS, MO, 63131. Phone: (314) 368-3422.
What is ZAHIRUL HAQUE, MD's NPI number?
ZAHIRUL HAQUE, MD's National Provider Identifier (NPI) is 1578536546, issued on 02/09/2006.
Does ZAHIRUL HAQUE, MD prescribe opioids?
Yes, ZAHIRUL HAQUE, MD had 42 opioid claims in 2023 with an opioid prescribing rate of 5.2%.
How many Hospitalist Physician providers are there in the US?
There are 16,825 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
What drugs does ZAHIRUL HAQUE, MD prescribe most often?
Based on 2023 Medicare Part D data, ZAHIRUL HAQUE, MD's most frequently prescribed drugs include Atorvastatin Calcium, Pantoprazole Sodium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ZAHIRUL HAQUE, MD accept Medicare?
ZAHIRUL HAQUE, MD appears in CMS Medicare data with 805 Part D claims and 143 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ZAHIRUL HAQUE, MD's credentials?
ZAHIRUL HAQUE, MD's NPI is 1578536546 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