2026 NPPES data Internal Medicine Physician NPI 1841439270 M.D.
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JOHNNY ALTAWIL, M.D.

Internal Medicine Physician in KNOXVILLE, Tennessee. 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
2K
Medicare Part D claims · 551 beneficiaries · Internal Medicine Physician avg: 3K
MIPS score
100/100
▲ 17 pts above national avg 83.1 · [object Object]
Industry payments
$682.99
40 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: JOHNNY ALTAWIL, M.D. is a Internal Medicine Physician ([object Object]) practicing in KNOXVILLE, Tennessee with a Medicare Part D prescribing footprint of 2K claims across 551 beneficiaries . Their CMS MIPS Final Score of 100/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $682.99 across 40 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: JOHNNY ALTAWIL, M.D. reported a CMS MIPS final score of 100 out of 100, above the 83.1 national average, and filed 1,513 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

JOHNNY ALTAWIL, M.D. 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).

JOHNNY ALTAWIL, M.D. at a glance

High performer (top quartile)

NPI registry status

Active

Issued 02/09/2009

NPI 1841439270

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

1,513 44% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

100/100 16.900000000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Tennessee

How Internal Medicine Physician compares to other specialties among Tennessee providers

Tennessee providers

Internal Medicine Physician share within Tennessee

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

Medicare quality performance — MIPS

JOHNNY ALTAWIL, M.D.'s 2023 MIPS final score plotted against the Internal Medicine Physician national average

High performer (top quartile)
MIPS Final Score
100/100
vs 83.1 national avg · 2023 performance year

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

0%100%National avg83%99%
MIPS final score (Internal Medicine Physician) — 100/100 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).

JOHNNY ALTAWIL, M.D. is a Internal Medicine Physician provider practicing in KNOXVILLE, Tennessee, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1841439270. 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.

JOHNNY ALTAWIL, M.D. appears in the CMS NPPES registry as a Internal Medicine Physician provider holding M.D. credentials at 1311 DOWELL SPRINGS BLVD, KNOXVILLE, TN, 37909, with a listed phone of (865) 588-5121. NPI 1841439270 was issued on 02/09/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ALTAWIL 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 1,513 prescription claims written by this provider, covering 551 Medicare beneficiaries and totaling roughly $768K in drug spend. 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 100/100 for the 2023 performance year, 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

1311 DOWELL SPRINGS BLVD
KNOXVILLE, TN 37909

Provider Details

NPI 1841439270
Specialty Internal Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 02/09/2009

CMS Quality Score (MIPS)

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

100
Final Score
Avg: 83.1
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where JOHNNY ALTAWIL, 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.

GASTROINTESTINAL ASSOCIATES PC
KNOXVILLE, TN

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 JOHNNY ALTAWIL, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$683

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.

Medicare Part D Prescribing Data

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

1,513
Total Claims
$768K
Total Drug Cost
551
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,170
Total Day Supply
87,350
Generic Drug Cost
$80K
Antibiotic Claims
45

Patient Demographics

Average Patient Age
71.3 years
Avg HCC Risk Score
1.24
Gender Split
60% female / 40% male
Age Distribution
<65: 69, 65-74: 296, 75-84: 163, 85+: 23

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Omeprazole
226
Pantoprazole Sodium
201
Famotidine
147
Sucralfate
102
Esomeprazole Magnesium
94
Sutab
Sod Sulf/Pot Chloride/Mag Sulf
77
Colestipol Hcl
61
Linzess
Linaclotide
54
Cholestyramine
Cholestyramine (With Sugar)
28
Mesalamine
23

* 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 JOHNNY ALTAWIL, M.D. 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

JOHNNY ALTAWIL, M.D.'s 1,513 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Tennessee

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

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JOHNNY ALTAWIL, M.D.'s specialty?
JOHNNY ALTAWIL, M.D. specializes in Internal Medicine Physician and practices in KNOXVILLE, Tennessee. Credentials: M.D..
How much does JOHNNY ALTAWIL, M.D. prescribe under Medicare Part D?
In 2023, JOHNNY ALTAWIL, M.D. wrote 1,513 Medicare Part D claims totaling $768K in drug costs for 551 beneficiaries.
What is JOHNNY ALTAWIL, M.D.'s Medicare quality score?
JOHNNY ALTAWIL, M.D. has a CMS MIPS Final Score of 100/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is JOHNNY ALTAWIL, M.D. located?
JOHNNY ALTAWIL, M.D. is located at 1311 DOWELL SPRINGS BLVD, KNOXVILLE, TN, 37909. Phone: (865) 588-5121.
What is JOHNNY ALTAWIL, M.D.'s NPI number?
JOHNNY ALTAWIL, M.D.'s National Provider Identifier (NPI) is 1841439270, issued on 02/09/2009.
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 JOHNNY ALTAWIL, M.D. prescribe most often?
Based on 2023 Medicare Part D data, JOHNNY ALTAWIL, M.D.'s most frequently prescribed drugs include Omeprazole, Pantoprazole Sodium, Famotidine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOHNNY ALTAWIL, M.D. accept Medicare?
JOHNNY ALTAWIL, M.D. appears in CMS Medicare data with 1,513 Part D claims and 551 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOHNNY ALTAWIL, M.D.'s credentials?
JOHNNY ALTAWIL, M.D.'s NPI is 1841439270 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.
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