DR. ANTONIO A ARMSTRONG (M.D.) – Nephrology Physician, NPI 1235472705
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
796 NEPHROLOGY in FL
Provider Addresses for DR. ANTONIO A ARMSTRONG (M.D.)
807 S ORLANDO AVE STE C
WINTER PARK, FL 327894870
Phone: (407) 515-2211
Fax: (407) 309-5412
Type: Mailing
2501 N ORANGE AVE STE 537N
ORLANDO, FL 328044674
Phone: (407) 894-4693
Type: Location
2180 W SR 434 STE 1164
LONGWOOD, FL 327795008
Phone: (407) 515-2211
Fax: (407) 309-5412
Type: Mailing
1761 OCOEE APOPKA RD
APOPKA, FL 327039263
Phone: (407) 515-2290
Fax: (407) 703-4574
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 88 Open Payments records for all available years, with a total value of $1,775.
Total Amount is formed as General ($1,775) + Research ($0) + Ownership ($0) = $1,775.
Last reported payment date: 2024-12-17 • Largest payer in this snapshot: Amgen Inc. ($239).
Total Amount
$1,775
General + Research + Ownership
Payments
88
Total payment records
General Amount
$1,775
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-17
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2018-07-05
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 |
|---|---|---|---|---|
| I20180705001901 | I | Nephrology | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 1,045 | 335 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 302 | 258 | $0 |
| 90960 | Dialysis services, 4 or more physician visits per month (20 years or older) | 288 | 44 | $0 |
| 90935 | Hemodialysis procedure with physician evaluation | 279 | 74 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 239 | 144 | $0 |
Insurance plans in this area (ZIP 32789)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| N E P H R O L O G Y | FL | |
| Nurse Practitioner | FL | |
| - | FL | |
| Internal Medicine | FL | |
| N E P H R O L O G Y | FL | |
| N E P H R O L O G Y | FL | |
| N E P H R O L O G Y | FL | |
| Physician Assistant | FL | |
| Nurse Practitioner | FL | |
| N E P H R O L O G Y | FL |
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.