2026 NPPES data Infectious Disease Physician NPI 1841394335 MD,FACP,FCCP
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VISWANATHAN CHOKKAVELU, MD,FACP,FCCP

Infectious Disease Physician in SAINT CLAIRSVILLE, Ohio. 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
61
Medicare Part D claims · 12 beneficiaries · Infectious Disease Physician avg: 816
What the federal data reveals: VISWANATHAN CHOKKAVELU, MD,FACP,FCCP is a Infectious Disease Physician ([object Object]) practicing in SAINT CLAIRSVILLE, Ohio with a Medicare Part D prescribing footprint of 61 claims across 12 beneficiaries .

What stands out: VISWANATHAN CHOKKAVELU, MD,FACP,FCCP filed 61 Medicare Part D claims in 2023 across SAINT CLAIRSVILLE, Ohio. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

VISWANATHAN CHOKKAVELU, MD,FACP,FCCP 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).

VISWANATHAN CHOKKAVELU, MD,FACP,FCCP at a glance

Quality data not reported

NPI registry status

Active

Issued 09/12/2006

NPI 1841394335

Primary specialty

Infectious Disease Physician

Mid-sized

8,292 US NPIs in this specialty

Medicare Part D claims

61 93% vs specialty avg

2023 prescription claims

Specialty avg: 816

Specialty distribution in Ohio

How Infectious Disease Physician compares to other specialties among Ohio providers

Ohio providers

Infectious Disease Physician share within Ohio

1. Infectious Disease Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Infectious Disease Physician share within Ohio

Specialty board-certification context

Estimated specialty board-certified rate — Infectious Disease Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Infectious Disease Physician ABMS/AOA estimate

Est. board-certified rate (Infectious Disease Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Infectious Disease 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).

VISWANATHAN CHOKKAVELU, MD,FACP,FCCP is a Infectious Disease Physician provider practicing in SAINT CLAIRSVILLE, Ohio, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD,FACP,FCCP. NPI: 1841394335. 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.

VISWANATHAN CHOKKAVELU, MD,FACP,FCCP appears in the CMS NPPES registry as a Infectious Disease Physician provider holding MD,FACP,FCCP credentials at 100 N SUGAR ST, SAINT CLAIRSVILLE, OH, 43950, with a listed phone of (740) 695-4400. NPI 1841394335 was issued on 09/12/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHOKKAVELU 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 61 prescription claims written by this provider, covering 12 Medicare beneficiaries and totaling roughly $13K 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.

Infectious Disease Physician is a mid-sized specialty nationwide, with 8,292 enrolled providers across 54 states and an average of 816 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

100 N SUGAR ST
SAINT CLAIRSVILLE, OH 43950

Provider Details

NPI 1841394335
Specialty Infectious Disease Physician
Credentials MD,FACP,FCCP
Gender Male
NPI Issued 09/12/2006

Hospital and facility affiliations

Facilities where VISWANATHAN CHOKKAVELU, MD,FACP,FCCP 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.

COLLIER HEALTH SERVICES, INC
IMMOKALEE, 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 — Ohio OMB 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 ~48K Ohio medical licensees in 2023 — they are NOT specific to VISWANATHAN CHOKKAVELU, MD,FACP,FCCP. To verify VISWANATHAN CHOKKAVELU, MD,FACP,FCCP's current license status, search the OMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

158
Total board actions, Ohio 2023
Across 154 cases
3.29
Actions per 1,000 licensees
Ohio statewide rate
probation
Most common action type
56 cases

OMB 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 Ohio 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.

61
Total Claims
$13K
Total Drug Cost
12
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
123
Total Day Supply
3,252
Generic Drug Cost
$980

Patient Demographics

Average Patient Age
74.9 years
Avg HCC Risk Score
1.15

Infectious Disease Physician Overview

How VISWANATHAN CHOKKAVELU, MD,FACP,FCCP fits within the Infectious Disease Physician landscape nationally.

8,292
Infectious Disease Physician Providers in US
54
States with Infectious Disease Physician
816
Avg Claims per Provider

VISWANATHAN CHOKKAVELU, MD,FACP,FCCP's 61 claims are below the specialty average of 816.

Nearby Infectious Disease Physician Providers in Ohio

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

Compare Infectious Disease Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is VISWANATHAN CHOKKAVELU, MD,FACP,FCCP's specialty?
VISWANATHAN CHOKKAVELU, MD,FACP,FCCP specializes in Infectious Disease Physician and practices in SAINT CLAIRSVILLE, Ohio. Credentials: MD,FACP,FCCP.
How much does VISWANATHAN CHOKKAVELU, MD,FACP,FCCP prescribe under Medicare Part D?
In 2023, VISWANATHAN CHOKKAVELU, MD,FACP,FCCP wrote 61 Medicare Part D claims totaling $13K in drug costs for 12 beneficiaries.
Where is VISWANATHAN CHOKKAVELU, MD,FACP,FCCP located?
VISWANATHAN CHOKKAVELU, MD,FACP,FCCP is located at 100 N SUGAR ST, SAINT CLAIRSVILLE, OH, 43950. Phone: (740) 695-4400.
What is VISWANATHAN CHOKKAVELU, MD,FACP,FCCP's NPI number?
VISWANATHAN CHOKKAVELU, MD,FACP,FCCP's National Provider Identifier (NPI) is 1841394335, issued on 09/12/2006.
How many Infectious Disease Physician providers are there in the US?
There are 8,292 Infectious Disease Physician providers across 54 states in the US. The average Infectious Disease Physician provider writes 816 Medicare Part D claims per year.
Does VISWANATHAN CHOKKAVELU, MD,FACP,FCCP accept Medicare?
VISWANATHAN CHOKKAVELU, MD,FACP,FCCP appears in CMS Medicare data with 61 Part D claims and 12 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify VISWANATHAN CHOKKAVELU, MD,FACP,FCCP's credentials?
VISWANATHAN CHOKKAVELU, MD,FACP,FCCP's NPI is 1841394335 with credentials MD,FACP,FCCP. 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