DR. SASHA BORIS GREK (MD) – Anesthesiology Physician, NPI 1558438085
Anesthesiology Physician
Main info
Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for DR. SASHA BORIS GREK (MD)
1324 Lakeland Hills Blvd
Lakeland, FL 338054543
Phone: (863) 687-1100
Type: Location
1600 LAKELAND HILLS BLVD
LAKELAND, FL 338053019
Phone: (863) 680-7000
Fax: (866) 264-8519
Type: Mailing
2724 COCO PALM CIR
WESLEY CHAPEL, FL 335434003
Phone: (352) 519-8686
Type: Mailing
Archer Road, Gainesville, Alachua County, Florida, 32610, United States
DEPARTMENT OF SURGERY, NF/SG VA MEDICAL CENTER
GAINESVILLE, FL 326081135
Phone: (352) 376-1611
Type: Mailing
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 $49.
Total Amount is formed as General ($49) + Research ($0) + Ownership ($0) = $49.
Last reported payment date: 2023-02-07 • Largest payer in this snapshot: Ceribell, Inc. ($49).
Total Amount
$49
General + Research + Ownership
Payments
1
Total payment records
General Amount
$49
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-02-07
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Ceribell, Inc. | $49 |
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: 2010-05-26
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 |
|---|---|---|---|---|
| I20100526000405 | 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 |
|---|---|---|---|---|
| 99291 | Critical care, first 30-74 minutes | 45 | 29 | $0 |
Insurance plans in this area (ZIP 33805)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | FL | 36620 | Insertion of arterial catheter for blood sampling or infusion, accessed through the skin | 14 | 14 |
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