2026 NPPES data Internal Medicine Physician NPI 1831707017 MBBS
Verify on CMS →

Mahmoud Ismayl, MBBS

Internal Medicine Physician in Rochester, Minnesota. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,858 in 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
62
Medicare Part D claims · 31 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
76%
generic claims · 24% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$153.87
1 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Mahmoud Ismayl, MBBS filed 62 Medicare Part D claims in 2023 as a Internal Medicine Physician in Rochester, Minnesota, prescribing 76% generic.

62
Part D claims, 2023
76%
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.

Mahmoud Ismayl, MBBS's Medicare Part D volume vs every U.S. prescriber

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

62 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 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)

Mahmoud Ismayl, MBBS 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 Mahmoud Ismayl, MBBS?

Quality data not reported

NPI registry status

Active

Issued 07/14/2020

NPI 1831707017

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

62 98% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Minnesota

How Internal Medicine Physician compares to other specialties among Minnesota providers

Minnesota providers

Largest specialties in Minnesota (% of in-state providers)

Behavior Technician - 11.7%Behavior Technician11.7%Clinical Social Worker - 4.7%Clinical Social Worker4.7%Physical Therapist - 4.1%Physical Therapist4.1%Pharmacist - 3.7%Pharmacist3.7%Student in an Organized Health Care Education/Training Program - 3.4%Student in an Organized Health Care Education/Training Program3.4%Mental Health Counselor - 3.1%Mental Health Counselor3.1%Internal Medicine Physician - 2.6%Internal Medicine Physician2.6%
Largest specialties in Minnesota (% 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 Internal Medicine 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).

Mahmoud Ismayl, MBBS appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MBBS credentials at 200 1ST STREET SW, Rochester, MN, 55905, with a listed phone of (507) 284-2511. NPI 1831707017 was issued on 07/14/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Ismayl 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 62 prescription claims written by this provider, covering 31 Medicare beneficiaries and totaling roughly $14K in drug spend, split 24% brand-name and 76% 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.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

200 1ST STREET SW
Rochester, MN 55905

Provider Details

NPI 1831707017
Specialty Internal Medicine Physician
Credentials MBBS
Gender Male
NPI Issued 07/14/2020

Hospital and facility affiliations

Facilities where Mahmoud Ismayl, MBBS 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.

Mayo Clinic
Rochester, MN

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 Mahmoud Ismayl, MBBS. Source: openpaymentsdata.cms.gov.

Total received

$154

Largest payer

Boston Scientific Corporation

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 · Typical

Mahmoud Ismayl, MBBS - brand share 24.0%
Internal Medicine Physician average

24% brand-name claims vs 76% generic, on 62 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.

62
Total Claims
$14K
Total Drug Cost
31
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
124
Total Day Supply
3,424
Brand vs Generic
24% brand / 76% generic
Brand Drug Cost
$13K
Generic Drug Cost
$518

Patient Demographics

Average Patient Age
74.1 years
Avg HCC Risk Score
2.35
Gender Split
45% female / 55% male

Internal Medicine Physician Overview

How Mahmoud Ismayl, MBBS fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

Mahmoud Ismayl, MBBS's 62 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Minnesota

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

Compare Internal Medicine 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 Minnesota medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Internal Medicine 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 Mahmoud Ismayl, MBBS's specialty?
Mahmoud Ismayl, MBBS specializes in Internal Medicine Physician and practices in Rochester, Minnesota. Credentials: MBBS.
How much does Mahmoud Ismayl, MBBS prescribe under Medicare Part D?
In 2023, Mahmoud Ismayl, MBBS wrote 62 Medicare Part D claims totaling $14K in drug costs for 31 beneficiaries.
Where is Mahmoud Ismayl, MBBS located?
Mahmoud Ismayl, MBBS is located at 200 1ST STREET SW, Rochester, MN, 55905. Phone: (507) 284-2511.
What is Mahmoud Ismayl, MBBS's NPI number?
Mahmoud Ismayl, MBBS's National Provider Identifier (NPI) is 1831707017, issued on 07/14/2020.
Does Mahmoud Ismayl, MBBS prescribe more brand-name or generic drugs?
Mahmoud Ismayl, MBBS's prescribing is 24% brand-name and 76% generic drugs by claim count, with $13K in brand drug costs.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
Does Mahmoud Ismayl, MBBS accept Medicare?
Mahmoud Ismayl, MBBS appears in CMS Medicare data with 62 Part D claims and 31 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mahmoud Ismayl, MBBS's credentials?
Mahmoud Ismayl, MBBS's NPI is 1831707017 with credentials MBBS. 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.