NPPES file of Aug 9, 2026

James Michael Sizemore, MD

Infectious Disease Physician · Chattanooga, TN

James Michael Sizemore, MD is an infectious disease physician with a practice address in Chattanooga, Tennessee, and NPI 1124021340, issued on May 23, 2005. Check the license (Tennessee 040177, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1124021340
Name
James Michael Sizemore
Credential
MD
Primary taxonomy
Infectious Disease Physician 207RI0200X
License numbers
040177 TN
060877 GA
Self-reported in NPPES; status is on the state search
Practice location
1000 East Third Street, Chattanooga, TN 37403
Phone
(423) 664-5165
Enumerated
May 23, 2005
Record last updated
Dec 30, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(423) 664-5164
Medicaid IDs
150360938A GA
1738158 LA
3333248 TN
5902601 NC
Medicare enrollment
Enrolled (PECOS I20050929000913); accepts Medicare assignment
Medical or professional school
University Of Tennessee, Hsc, College Of Medicine, 1998
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1000 East Third Street

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Stephen Hawkins, MDInfectious Disease Physician1841253754
  2. Adam Soufleris, MDInfectious Disease Physician1184687378

Verify James Michael Sizemore in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTennessee Board of Medical Examiners
    Search for license 040177
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Tennessee license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2.3 times the Medicare Part D claims of the average infectious disease physician in 2024

1,615 Medicare Part D claims for 313 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 51% of claims.

  1. James Sizemore1,615
  2. Specialty average689

Most prescribed

  1. Biktarvy498 claims
  2. Doxycycline Hyclate226 claims
  3. Amoxicillin73 claims
  4. Sulfamethoxazole-Trimethoprim68 claims
  5. Cefadroxil67 claims
  6. Tivicay64 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $20,179.03

30 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. James Sizemore$20,179
  2. Specialty average$4,362

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Chattanooga Cares, IncChattanooga, TN
  2. ID Group, PLLCChattanooga, TN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

James Michael Sizemore among 194 infectious disease physician records in Tennessee

James Michael Sizemore, MD is one of 194 infectious disease physician records with a practice address in Tennessee. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 91% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated1998 · median 2005 among the 145 with a school on file
  • Record last updated2013 · 32% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in Tennessee

There are 194 infectious disease physician records in Tennessee.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Michael Davis, MDChattanooga, TN 374031760643027
  2. Stephen Hawkins, MDChattanooga, TN 374031841253754
  3. Hal Hill, MDChattanooga, TN 374031689663197
  4. Charles Longer, M.DChattanooga, TN 374031407865140
  5. Adam Soufleris, MDChattanooga, TN 374031184687378
  6. Barbara Beeler, MDChattanooga, TN 374021902843766
  7. Paul Cornea, MDChattanooga, TN 374041083603906
  8. Douglas Bechard, M.D.Chattanooga, TN 374111811189004

Common questions

What is James Michael Sizemore, MD's NPI number?

James Michael Sizemore, MD's National Provider Identifier (NPI) is 1124021340, issued on May 23, 2005. An NPI identifies a provider in billing; it is not a license.

Where is James Michael Sizemore, MD located?

The NPPES record lists a practice address at 1000 East Third Street, Chattanooga, TN, 37403. Phone: (423) 664-5165. Providers update this record themselves, so call before visiting.

How can I verify James Michael Sizemore, MD's license?

NPPES lists Tennessee license number 040177, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does James Michael Sizemore, MD prescribe under Medicare Part D?

In 2024, James Michael Sizemore, MD had 1,615 Medicare Part D claims for 313 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.