DR. MARK ROGER FREIBERG (M.D.) – Critical Care Medicine (Internal Medicine) Physician, NPI 1770536450
Critical Care Medicine (Internal Medicine) Physician
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NPPES metrics only — not quality of care.
367 PULMONARY DISEASE in MN
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Provider Addresses for DR. MARK ROGER FREIBERG (M.D.)
John Nasseff Medical Center, 255, Smith Avenue North, West Seventh - Fort Road, Saint Paul, Ramsey County, Minnesota, 55102, United States
SUITE 300
SAINT PAUL, MN 551022572
Phone: (651) 726-6200
Fax: (651) 726-6201
Mailing address matches the actual address.
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.
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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: 2004-02-26
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 |
|---|---|---|---|---|
| I20040226000304 | I | Pulmonary Disease | 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 |
|---|---|---|---|---|
| 99291 | Critical care, first 30-74 minutes | 97 | 52 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 28 | 23 | $0 |
| G0399 | Home sleep test (hst) with type iii portable monitor, unattended; minimum of 4 channels: 2 respiratory movement/airflow, 1 ecg/heart rate and 1 oxygen saturation | 26 | 25 | $0 |
| 95810 | Sleep study in sleep lab (6 years or older) | 25 | 25 | $0 |
| 99292 | Critical care, each additional 30 minutes | 24 | 14 | $0 |
Insurance plans in this area (ZIP 55102)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| PULMONARY DISEASE | MN | 95811 | Sleep monitoring of patient (6 years or older) in sleep lab with continued pressured respiratory assistance by mask or breathing tube | 32 | 30 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Pulmonary Disease | CO | |
| Qualified Audiologist | MN | |
| Family Practice | MN | |
| - | MN | |
| Family Practice | MN | |
| Nurse Practitioner | ND | |
| - | MN | |
| - | MN | |
| - | MN | |
| - | MN |
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