THOMAS BARTHOLOMEW FLANAGAN (MD) – Internal Medicine Physician, NPI 1508841883
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for THOMAS BARTHOLOMEW FLANAGAN (MD)
3040, West Salt Creek Lane, Arlington International Racecourse, Arlington Heights, Palatine Township, Cook County, Illinois, 60005, United States
ARLINGTON HEIGHTS, IL 600051069
Phone: (847) 870-4780
Fax: (847) 483-7447
Type: Mailing
Biesterfield Road, Elk Grove Village, Elk Grove Township, Cook County, Illinois, 60007-3545, United States
SUITE 206
ELK GROVE VILLAGE, IL 600073378
Phone: (847) 981-3678
Fax: (847) 956-5113
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2020-03-31
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
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 |
|---|---|---|---|---|
| I20200331001655 | I | Family Practice | WI | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 60005)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | IL | 85610 | Blood test, clotting time | 145 | 19 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | WI | |
| Mental Health Counselor | WI | |
| - | WI | |
| Internal Medicine | WI | |
| Hospitalist, Internal Medicine | WI | |
| U R O L O G Y | GA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | WI | |
| - | OH | |
| - | WI | |
| - | WI |
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