MARY A OSEI (M.D.) – Hospitalist Physician, NPI 1164927703
Hospitalist Physician
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Profile Insights
NPPES metrics only — not quality of care.
414 HOSPITALIST in IA
Provider Addresses for MARY A OSEI (M.D.)
1229 C AVE E
OSKALOOSA, IA 525774298
Phone: (641) 672-3394
Fax: (641) 672-3336
Type: Mailing
201, Prince Avenue, Boulevard, Athens, Athens-Clarke County, Georgia, 30601, United States
ATHENS, GA 306062789
Phone: (706) 475-7055
Type: Location
Athens Regional Medical Center, 1199, Prince Avenue, Normaltown, Athens, Athens-Clarke County, Georgia, 30606, United States
ATHENS, GA 306062797
Phone: (706) 475-7055
Type: Mailing
1229 C Ave E
Oskaloosa, IA 525774298
Phone: (641) 672-3394
Fax: (641) 672-3336
Type: Location
2900 1ST AVE RM 1025
HUNTINGTON, WV 257021241
Phone: (304) 399-7484
Fax: (304) 399-7579
Type: Mailing
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: 2024-08-02
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20210909001067 | I | Hospitalist | IA | TBD |
| I20240802003887 | I | Internal Medicine | WV | 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 |
|---|---|---|---|---|
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 110 | 110 | $0 |
| 99221 | Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 63 | 60 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 31 | 20 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 22 | 22 | $0 |
Insurance plans in this area (ZIP 52577)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | WV | |
| Internal Medicine | WV | |
| Internal Medicine, Hospitalist | WV | |
| Internal Medicine | WV | |
| Internal Medicine | WV | |
| - | WV | |
| Nurse Practitioner | WV | |
| Internal Medicine | WV | |
| Internal Medicine | WV | |
| Internal Medicine | NJ |
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