2026 NPPES data Allergy & Immunology Physician NPI 1306883061 M.D.
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MUHAMMAD AFZAL, M.D.

Allergy & Immunology Physician in NEW CASTLE, Indiana. 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
269
Medicare Part D claims · 73 beneficiaries · Allergy & Immunology Physician avg: 764
Generic prescribing
62%
generic claims · 38% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$232.23
12 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: MUHAMMAD AFZAL, M.D. is a Allergy & Immunology Physician ([object Object]) practicing in NEW CASTLE, Indiana with a Medicare Part D prescribing footprint of 269 claims across 73 beneficiaries — 38% brand-name prescribing . Industry payments of $232.23 across 12 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: MUHAMMAD AFZAL, M.D. filed 269 Medicare Part D claims in 2023 across NEW CASTLE, Indiana. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

MUHAMMAD AFZAL, 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).

MUHAMMAD AFZAL, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 06/01/2006

NPI 1306883061

Primary specialty

Allergy & Immunology Physician

Niche

3,390 US NPIs in this specialty

Medicare Part D claims

269 65% vs specialty avg

2023 prescription claims

Specialty avg: 764

Specialty distribution in Indiana

How Allergy & Immunology Physician compares to other specialties among Indiana providers

Indiana providers

Allergy & Immunology Physician share within Indiana

1. Allergy & Immunology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Allergy & Immunology Physician share within Indiana

Specialty board-certification context

Estimated specialty board-certified rate — Allergy & Immunology Physician (ABMS / AOA reference)

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

Est. board-certified rate (Allergy & Immunology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Allergy & Immunology 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).

MUHAMMAD AFZAL, M.D. is a Allergy & Immunology Physician provider practicing in NEW CASTLE, Indiana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1306883061. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

MUHAMMAD AFZAL, M.D. appears in the CMS NPPES registry as a Allergy & Immunology Physician provider holding M.D. credentials at 1007 N 16TH ST, NEW CASTLE, IN, 47362, with a listed phone of (765) 599-3435. NPI 1306883061 was issued on 06/01/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what AFZAL 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 269 prescription claims written by this provider, covering 73 Medicare beneficiaries and totaling roughly $365K in drug spend, split 38% brand-name and 62% 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.

Allergy & Immunology Physician is a narrow specialty nationwide, with 3,390 enrolled providers across 52 states and an average of 764 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

1007 N 16TH ST
NEW CASTLE, IN 47362

Provider Details

NPI 1306883061
Specialty Allergy & Immunology Physician
Credentials M.D.
Gender Male
NPI Issued 06/01/2006

Hospital and facility affiliations

Facilities where MUHAMMAD AFZAL, 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.

NEW CASTLE CLINIC INC
NEW CASTLE, IN

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 MUHAMMAD AFZAL, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$232

Largest payer

ABBVIE 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.

Brand vs generic prescribing mix · Above average

MUHAMMAD AFZAL, M.D. — brand share 38.0%
Specialty average (est.)

38% brand-name claims vs 62% generic, on 269 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.

269
Total Claims
$365K
Total Drug Cost
73
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
328
Total Day Supply
7,253
Brand vs Generic
38% brand / 62% generic
Brand Drug Cost
$335K
Generic Drug Cost
$30K
Antibiotic Claims
111

Patient Demographics

Average Patient Age
71.5 years
Avg HCC Risk Score
2.55
Gender Split
53% female / 47% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Santyl
Collagenase Clostridium Hist.
29
Biktarvy
Bictegrav/Emtricit/Tenofov Ala
26
Ceftriaxone
Ceftriaxone Sodium
19
Cephalexin
17
Genvoya
Elviteg/Cob/Emtri/Tenof Alafen
13
Descovy
Emtricitabine/Tenofov Alafenam
12
Ertapenem
Ertapenem Sodium
12
Montelukast Sodium
12
Ipratropium Bromide
11
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
11

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

Allergy & Immunology Physician Overview

How MUHAMMAD AFZAL, M.D. fits within the Allergy & Immunology Physician landscape nationally.

3,390
Allergy & Immunology Physician Providers in US
52
States with Allergy & Immunology Physician
764
Avg Claims per Provider

MUHAMMAD AFZAL, M.D.'s 269 claims are below the specialty average of 764.

Nearby Allergy & Immunology Physician Providers in Indiana

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

Compare Allergy & Immunology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MUHAMMAD AFZAL, M.D.'s specialty?
MUHAMMAD AFZAL, M.D. specializes in Allergy & Immunology Physician and practices in NEW CASTLE, Indiana. Credentials: M.D..
How much does MUHAMMAD AFZAL, M.D. prescribe under Medicare Part D?
In 2023, MUHAMMAD AFZAL, M.D. wrote 269 Medicare Part D claims totaling $365K in drug costs for 73 beneficiaries.
Where is MUHAMMAD AFZAL, M.D. located?
MUHAMMAD AFZAL, M.D. is located at 1007 N 16TH ST, NEW CASTLE, IN, 47362. Phone: (765) 599-3435.
What is MUHAMMAD AFZAL, M.D.'s NPI number?
MUHAMMAD AFZAL, M.D.'s National Provider Identifier (NPI) is 1306883061, issued on 06/01/2006.
Does MUHAMMAD AFZAL, M.D. prescribe more brand-name or generic drugs?
MUHAMMAD AFZAL, M.D.'s prescribing is 38% brand-name and 62% generic drugs by claim count, with $335K in brand drug costs.
How many Allergy & Immunology Physician providers are there in the US?
There are 3,390 Allergy & Immunology Physician providers across 52 states in the US. The average Allergy & Immunology Physician provider writes 764 Medicare Part D claims per year.
What drugs does MUHAMMAD AFZAL, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MUHAMMAD AFZAL, M.D.'s most frequently prescribed drugs include Santyl, Biktarvy, Ceftriaxone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MUHAMMAD AFZAL, M.D. accept Medicare?
MUHAMMAD AFZAL, M.D. appears in CMS Medicare data with 269 Part D claims and 73 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MUHAMMAD AFZAL, M.D.'s credentials?
MUHAMMAD AFZAL, M.D.'s NPI is 1306883061 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

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