JOHN C FLANAGAN (MD) – Anesthesiology Physician, NPI 1144215443
Anesthesiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,340 ANESTHESIOLOGY in FL
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Provider Addresses for JOHN C FLANAGAN (MD)
2165, Herschel Street, Riverside, Jacksonville, Duval County, Florida, 32204, United States
JACKSONVILLE, FL 322043819
Phone: (904) 387-4030
Fax: (904) 381-9808
Type: Mailing
1800, Barrs Street, Jacksonville, Duval County, Florida, 32204, United States
JACKSONVILLE, FL 322044704
Phone: (904) 387-4030
Fax: (904) 381-9808
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $100.
Total Amount is formed as General ($100) + Research ($0) + Ownership ($0) = $100.
Last reported payment date: 2023-09-19 • Largest payer in this snapshot: FUJIFILM SonoSite, Inc. ($100).
Total Amount
$100
General + Research + Ownership
Payments
1
Total payment records
General Amount
$100
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-09-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| FUJIFILM SonoSite, Inc. | $100 |
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: 2004-08-19
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 |
|---|---|---|---|---|
| I20040819001112 | I | Anesthesiology | FL | 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 |
|---|---|---|---|---|
| 00142 | Anesthesia for lens surgery | 18 | 18 | $0 |
| 00811 | Anesthesia for other procedure on large bowel using an endoscope | 17 | 17 | $0 |
| 00731 | Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 16 | 16 | $0 |
| 00813 | Anesthesia for procedure on small and large bowel using an endoscope | 16 | 16 | $0 |
| 01922 | Anesthesia for x-ray or radiation therapy | 14 | 14 | $0 |
Insurance plans in this area (ZIP 32204)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Certified Registered Nurse Anesthetist (Crna) | FL | |
| A N E S T H E S I O L O G Y | FL | |
| - | WI | |
| - | FL | |
| - | FL | |
| A N E S T H E S I O L O G Y | FL | |
| - | FL | |
| Certified Registered Nurse Anesthetist (Crna) | FL | |
| A N E S T H E S I O L O G Y | PA | |
| Certified Registered Nurse Anesthetist (Crna) | FL |
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