2026 NPPES data Internal Medicine Physician NPI 1821331471 MD
Verify on CMS →

Asef Mahmud, MD

Internal Medicine Physician in Orlando, Florida. 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
1K
Medicare Part D claims · 189 beneficiaries · Internal Medicine Physician avg: 3K
MIPS score
78/100
▼ 5 pts below national avg 83.1 · Above neutral

What the federal data shows

Asef Mahmud, MD reported a CMS MIPS final score of 78/100 — below the 83.1 national average — and filed 1,370 Medicare Part D claims in 2023.

78/100
MIPS score · -5 vs avg
1K
Part D claims, 2023
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.

Asef Mahmud, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

78 27th percentile higher than 27% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Where Asef Mahmud, MD sits

This provider among internal medicine physician peers

Across the 36,260 internal medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Asef Mahmud, MD writes more Part D claims than 60% of them and scores higher on MIPS quality than 26% — placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume — percentile in specialtyMIPS quality — percentile
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one internal medicine physician peer from a representative sample of 60; the gold marker is Asef Mahmud, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic — not verified)

Asef Mahmud, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Asef Mahmud, MD?

Below national average

NPI registry status

Active

Issued 04/02/2013

NPI 1821331471

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

1,370 50% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

78/100 5.1 pts vs avg

Above neutral band

vs 83.1 national avg

Specialty distribution in Florida

How Internal Medicine Physician compares to other specialties among Florida providers

Florida providers

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

Behavior Technician16.1%Mental Health Counselor4.8%Family Nurse Practitioner4.5%Pharmacist4.2%Student in an Organized Health Care Education/Training Program3.8%Physical Therapist3.1%Internal Medicine Physician2.4%
Largest specialties in Florida (% of in-state providers)

Medicare quality performance — MIPS

Asef Mahmud, MD's 2023 MIPS final score plotted against the Internal Medicine Physician national average

Below national average
MIPS Final Score
78/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Internal Medicine Physician) — 78/100 vs national avg 83.1

0%100%National avg83%78%
MIPS final score (Internal Medicine Physician) — 78/100 vs national avg 83.1

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).

Asef Mahmud, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 2501 N ORANGE AVE STE 235, Orlando, FL, 32804, with a listed phone of (407) 303-7270. NPI 1821331471 was issued on 04/02/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Mahmud 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 1,370 prescription claims written by this provider, covering 189 Medicare beneficiaries and totaling roughly $176K in drug spend, with an opioid prescribing rate of 5.8%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 78/100 for the 2023 performance year (Quality 57.5, Cost 69.2), compared with the national average of 83.1.

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

2501 N ORANGE AVE STE 235
Orlando, FL 32804

Provider Details

NPI 1821331471
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 04/02/2013

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

78.0121
Final Score
Avg: 83.1
57.5188
Quality
69.1882
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Asef Mahmud, 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.

Florida Hospital Medical Group Inc
Orlando, FL

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

License & disciplinary context — Florida FLDOH 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~75K Florida medical licensees in 2023 — they are NOT specific to Asef Mahmud, MD. To verify Asef Mahmud, MD's current license status, search the FLDOH public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

480
Total board actions, Florida 2023
Across 467 cases
6.40
Actions per 1,000 licensees
Florida statewide rate
monetary fine
Most common action type
138 cases

FLDOH publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Florida disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

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

1,370
Total Claims
$176K
Total Drug Cost
189
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,066
Total Day Supply
88,659
Generic Drug Cost
$43K
Opioid Claims
80 (5.8% rate)
Antibiotic Claims
28

Patient Demographics

Average Patient Age
68.3 years
Avg HCC Risk Score
1.84
Gender Split
50% female / 50% male
Age Distribution
<65: 36, 65-74: 89, 75-84: 49, 85+: 15

Top Prescribed Drugs (Medicare Part D)

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

What Asef Mahmud, 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
Rosuvastatin Calcium
63
Atorvastatin Calcium
60
Amlodipine Besylate
55
Oxycodone Hcl
52
Pantoprazole Sodium
35
Losartan Potassium
34
Levothyroxine Sodium
33
Hydrochlorothiazide
28
Clonidine Hcl
27
Carvedilol
26

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

Internal Medicine Physician Overview

How Asef Mahmud, MD 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

Asef Mahmud, MD's 1,370 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Florida

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

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 Florida 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 Asef Mahmud, MD's specialty?
Asef Mahmud, MD specializes in Internal Medicine Physician and practices in Orlando, Florida. Credentials: MD.
How much does Asef Mahmud, MD prescribe under Medicare Part D?
In 2023, Asef Mahmud, MD wrote 1,370 Medicare Part D claims totaling $176K in drug costs for 189 beneficiaries.
What is Asef Mahmud, MD's Medicare quality score?
Asef Mahmud, MD has a CMS MIPS Final Score of 78/100 (Quality: 57.5, Cost: 69.2). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Asef Mahmud, MD located?
Asef Mahmud, MD is located at 2501 N ORANGE AVE STE 235, Orlando, FL, 32804. Phone: (407) 303-7270.
What is Asef Mahmud, MD's NPI number?
Asef Mahmud, MD's National Provider Identifier (NPI) is 1821331471, issued on 04/02/2013.
Does Asef Mahmud, MD prescribe opioids?
Yes, Asef Mahmud, MD had 80 opioid claims in 2023 with an opioid prescribing rate of 5.8%.
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.
What drugs does Asef Mahmud, MD prescribe most often?
Based on 2023 Medicare Part D data, Asef Mahmud, MD's most frequently prescribed drugs include Rosuvastatin Calcium, Atorvastatin Calcium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Asef Mahmud, MD accept Medicare?
Asef Mahmud, MD appears in CMS Medicare data with 1,370 Part D claims and 189 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Asef Mahmud, MD's credentials?
Asef Mahmud, MD's NPI is 1821331471 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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