DR. JAMES MICHAEL JR. SIZEMORE (MD) – Infectious Disease Physician, NPI 1124021340
Infectious Disease Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
207 INFECTIOUS DISEASE in TN
Loading map...
Provider Addresses for DR. JAMES MICHAEL JR. SIZEMORE (MD)
East Twenty-third Street Baptist Church, East 23rd Street, Oak Grove, Chattanooga, Hamilton County, East Tennessee, Tennessee, 37407, United States
SUITE 302
CHATTANOOGA, TN 374034115
Phone: (423) 664-5165
Fax: (423) 664-5164
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 60 Open Payments records for all available years, with a total value of $32,004.
Total Amount is formed as General ($32,004) + Research ($0) + Ownership ($0) = $32,004.
Last reported payment date: 2024-12-11 • Largest payer in this snapshot: Gilead Sciences, Inc. ($31,972).
Total Amount
$32,004
General + Research + Ownership
Payments
60
Total payment records
General Amount
$32,004
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-11
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Gilead Sciences, Inc. | $31,972 |
| Insmed, Inc. | $16 |
| ViiV Healthcare Company | $16 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2011-07-19
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20050929000913 | I | Infectious Disease | TN | TBD |
| I20110719000624 | I | Infectious Disease | GA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 371 | 107 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 178 | 115 | $0 |
Insurance plans in this area (ZIP 37403)
Loading plans...
Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INFECTIOUS DISEASE | TN | 90670 | Pneumococcal vaccine for injection into muscle | 12 | 12 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Infectious Disease, Internal Medicine | TN |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.