ROBERT G SONNTAG (MD) – Geriatric Medicine (Internal Medicine) Physician, NPI 1699741397
Geriatric Medicine (Internal Medicine) Physician
Main info
Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for ROBERT G SONNTAG (MD)
Healthpartners, 8170, 33rd Avenue South, Bloomington, Hennepin County, Minnesota, 55425, United States
MS 21110Q
BLOOMINGTON, MN 554254516
Phone:
Type: Mailing
Chicago Av, Washington Avenue South, Minneapolis, Hennepin County, Minnesota, 55415:55454, United States
MINNEAPOLIS, MN 554073570
Phone: (952) 883-6805
Fax: (952) 853-8864
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2005-12-22
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 |
|---|---|---|---|---|
| I20051222000537 | I | Geriatric Medicine | MN | 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 |
|---|---|---|---|---|
| 99309 | Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 99 | 49 | $0 |
| 99306 | Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 15 | 15 | $0 |
Insurance plans in this area (ZIP 55425)
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