2026 NPPES data Hematology & Oncology Physician NPI 1831198928 M.D.
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LYLE MUNN, M.D.

Hematology & Oncology Physician in PORTER, 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
68
Medicare Part D claims · Hematology & Oncology Physician avg: 847
Generic prescribing
65%
generic claims · 35% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: LYLE MUNN, M.D. is a Hematology & Oncology Physician ([object Object]) practicing in PORTER, Indiana with a Medicare Part D prescribing footprint of 68 claims — 35% brand-name prescribing .

What stands out: LYLE MUNN, M.D. filed 68 Medicare Part D claims in 2023 across PORTER, Indiana. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

LYLE MUNN, M.D. 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).

LYLE MUNN, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 07/20/2005

NPI 1831198928

Primary specialty

Hematology & Oncology Physician

Mid-sized

11,215 US NPIs in this specialty

Medicare Part D claims

68 92% vs specialty avg

2023 prescription claims

Specialty avg: 847

Specialty distribution in Indiana

How Hematology & Oncology Physician compares to other specialties among Indiana providers

Indiana providers

Hematology & Oncology Physician share within Indiana

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

Specialty board-certification context

Estimated specialty board-certified rate — Hematology & Oncology Physician (ABMS / AOA reference)

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

Est. board-certified rate (Hematology & Oncology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Hematology & Oncology 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).

LYLE MUNN, M.D. is a Hematology & Oncology Physician provider practicing in PORTER, Indiana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1831198928. 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.

LYLE MUNN, M.D. appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding M.D. credentials at 1190 N STATE ROAD 49, PORTER, IN, 46304, with a listed phone of (219) 926-2146. NPI 1831198928 was issued on 07/20/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MUNN 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 68 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $4K 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.

Hematology & Oncology Physician is a mid-sized specialty nationwide, with 11,215 enrolled providers across 54 states and an average of 847 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

1190 N STATE ROAD 49
PORTER, IN 46304

Provider Details

NPI 1831198928
Specialty Hematology & Oncology Physician
Credentials M.D.
Gender Male
NPI Issued 07/20/2005

Brand vs generic prescribing mix · Above average

LYLE MUNN, M.D. — brand share 35.0%
Specialty average (est.)

35% brand-name claims vs 65% generic, on 68 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.

68
Total Claims
$4K
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
127
Total Day Supply
3,589
Brand vs Generic
35% brand / 65% generic
Brand Drug Cost
$4K
Generic Drug Cost
$676

Patient Demographics

Average Patient Age
84.9 years
Avg HCC Risk Score
2.87

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Latanoprost
12

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

Hematology & Oncology Physician Overview

How LYLE MUNN, M.D. fits within the Hematology & Oncology Physician landscape nationally.

11,215
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider

LYLE MUNN, M.D.'s 68 claims are below the specialty average of 847.

Nearby Hematology & Oncology Physician Providers in Indiana

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

Compare Hematology & Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is LYLE MUNN, M.D.'s specialty?
LYLE MUNN, M.D. specializes in Hematology & Oncology Physician and practices in PORTER, Indiana. Credentials: M.D..
How much does LYLE MUNN, M.D. prescribe under Medicare Part D?
In 2023, LYLE MUNN, M.D. wrote 68 Medicare Part D claims totaling $4K in drug costs for N/A beneficiaries.
Where is LYLE MUNN, M.D. located?
LYLE MUNN, M.D. is located at 1190 N STATE ROAD 49, PORTER, IN, 46304. Phone: (219) 926-2146.
What is LYLE MUNN, M.D.'s NPI number?
LYLE MUNN, M.D.'s National Provider Identifier (NPI) is 1831198928, issued on 07/20/2005.
Does LYLE MUNN, M.D. prescribe more brand-name or generic drugs?
LYLE MUNN, M.D.'s prescribing is 35% brand-name and 65% generic drugs by claim count, with $4K in brand drug costs.
How many Hematology & Oncology Physician providers are there in the US?
There are 11,215 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 847 Medicare Part D claims per year.
What drugs does LYLE MUNN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, LYLE MUNN, M.D.'s most frequently prescribed drugs include Latanoprost. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LYLE MUNN, M.D. accept Medicare?
LYLE MUNN, M.D. appears in CMS Medicare data with 68 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LYLE MUNN, M.D.'s credentials?
LYLE MUNN, M.D.'s NPI is 1831198928 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