MR. ROBERT W KLASSEN (MD) – General Practice Physician, NPI 1104926377
General Practice Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for MR. ROBERT W KLASSEN (MD)
100, Spring Street Southeast, Green Street-Brenau Historic District, Gainesville, Hall County, Georgia, 30501, United States
GAINESVILLE, GA 30501
Phone: (770) 532-3700
Fax: (770) 532-0059
Type: Location
PO BOX 907217
100 SPRING ST
GAINESVILLE, GA 30501
Phone: (770) 532-3700
Fax: (770) 532-0059
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 6 Open Payments records for all available years, with a total value of $338.
Total Amount is formed as General ($338) + Research ($0) + Ownership ($0) = $338.
Last reported payment date: 2023-10-25 • Largest payer in this snapshot: GlaxoSmithKline, LLC. ($239).
Total Amount
$338
General + Research + Ownership
Payments
6
Total payment records
General Amount
$338
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-10-25
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GlaxoSmithKline, LLC. | $239 |
| Astellas Pharma US Inc | $99 |
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: 2010-08-12
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 |
|---|---|---|---|---|
| I20100812000793 | I | General Practice | GA | 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 | 248 | 57 | $0 |
| 99306 | Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 173 | 166 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 18 | 15 | $0 |
| 99305 | Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes | 12 | 12 | $0 |
Insurance plans in this area (ZIP 30501)
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