DR. ERNST MARKUS KLAUS (MB.CHB., FRCPC RHEUM) – Rheumatology Physician, NPI 1639887771
Rheumatology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
449 RHEUMATOLOGY in FL
Provider Addresses for DR. ERNST MARKUS KLAUS (MB.CHB., FRCPC RHEUM)
32615 US Highway 19 N Ste 2
Palm Harbor, FL 346843176
Phone: (727) 789-2784
Fax: (727) 785-3537
Type: Location
4443 GLENBROOK LN
PALM HARBOR, FL 346831568
Phone:
Fax: (813) 441-7825
Type: Mailing
2965 PEARSON JAMES PLACE
LUTZ, FL 33559
Phone: (813) 214-5420
Fax: (813) 441-7825
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 318 Open Payments records for all available years, with a total value of $6,601.
Total Amount is formed as General ($6,601) + Research ($0) + Ownership ($0) = $6,601.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: Amgen Inc. ($1,040).
Total Amount
$6,601
General + Research + Ownership
Payments
318
Total payment records
General Amount
$6,601
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Amgen Inc. | $1,040 |
| ABBVIE INC. | $954 |
| UCB, Inc. | $649 |
| GlaxoSmithKline, LLC. | $296 |
| E.R. Squibb & Sons, L.L.C. | $274 |
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: 2022-12-15
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 |
|---|---|---|---|---|
| I20221215001843 | I | Rheumatology | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 66 | 45 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 35 | 35 | $0 |
Insurance plans in this area (ZIP 34684)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| R H E U M A T O L O G Y | FL | |
| Internal Medicine | FL | |
| Endocrinology, Internal Medicine | FL | |
| R H E U M A T O L O G Y | FL |
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