MARY TAHNK-JOHNSON – Nephrology Physician, NPI 1548247547
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,638 INTERNAL MEDICINE in MN
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Provider Addresses for MARY TAHNK-JOHNSON
Wayzata Blvd, South Wayzata Boulevard, Minneapolis, Hennepin County, Minnesota, 55416, United States
STE 315
MINNEAPOLIS, MN 554261728
Phone:
Type: Mailing
Excelsior Boulevard, Saint Louis Park, Hennepin County, Minnesota, 55416:55424, United States
STE W300
ST LOUIS PARK, MN 554264705
Phone: (952) 993-4705
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: 2005-07-22
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 |
|---|---|---|---|---|
| I20050722000183 | I | Nephrology | 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 |
|---|---|---|---|---|
| 36415 | Insertion of needle into vein for collection of blood sample | 212 | 85 | $0 |
| 90960 | Dialysis services, 4 or more physician visits per month (20 years or older) | 130 | 20 | $0 |
| 80069 | Kidney function blood test panel | 94 | 43 | $0 |
| 85018 | Blood count, hemoglobin | 94 | 40 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 87 | 76 | $0 |
Insurance plans in this area (ZIP 55426)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| O B S T E T R I C S/ G Y N E C O L O G Y | MN | |
| Family Practice | MN | |
| - | MN | |
| Pulmonary Disease, Critical Care (Intensivists), Internal Medicine | MN | |
| Cardiac Electrophysiology | MN | |
| Family Practice | MN | |
| Physician Assistant | MN | |
| Physical Therapist In Private Practice | MN | |
| Physician Assistant | MN | |
| D E R M A T O L O G Y | MN |
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